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สำนักงานพัฒนาธุรกรรมทางอิเล็กทรอนิกส์ Electronic Transactions Development Agency |
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สำนักงานพัฒนาธุรกรรมทางอิเล็กทรอนิกส์ Electronic Transactions Development Agency |
Tool: Gelup| Names | Gelup | |
| Category | Malware | |
| Type | Downloader | |
| Description | (Trend Micro) In the same June 20 campaign, we also found another apparently new, undisclosed malware, which we named “Gelup”. A custom packer was also used to pack some variants of this malware. Again, it uses the same packer that TA505 has been using. The unpacked payload is written in C++ and basically works as a downloader for another malware. What makes Gelup different, however, is its obfuscation technique and UAC-bypassing function bymocking trusted directories (spoofing the file’s execution path in a trusted directory), abusing auto-elevated executables, and using the dynamic-link library (DLL) side-loading technique. First, Gelup resolves most Windows application programming interfaces (APIs) by using the hash just before calling it —a common technique used by a lot of malware families. Second, the strings in Gelup’s code are decrypted at runtime. | |
| Information | <https://documents.trendmicro.com/assets/Tech-Brief-Latest-Spam-Campaigns-from-TA505-Now-Using-New-Malware-Tools-Gelup-and-FlowerPippi.pdf> | |
| AlienVault OTX | <https://otx.alienvault.com/browse/pulses?q=tag:Gelup> | |
Last change to this tool card: 20 April 2020
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Previous: Gelsevirine
Next: Gemcutter
| Changed | Name | Country | Observed | ||
APT groups | |||||
| TA505, Graceful Spider, Gold Evergreen |  | 2006-Nov 2022 |  | ||
1 group listed (1 APT, 0 other, 0 unknown)
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