Analysis
- max time kernel
147s - max time network
119s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
- submitted
01/04/2024, 15:42
General
- Target $PLUGINSDIR/yhjjbtf.dll
- Size 33KB
- Sample240401-s5txaagf3x
- SHA256 520857c7a5bfaeebf0f39504ae85d32b7e153774e93cb2be486f9a5d35b76d05
Malware Config
Extracted
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xloader
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2.5
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kqna
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achyutlifesciences.com
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anthemmg.com
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netkopat.com
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generationgirlnaturals.com
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novatel-network.com
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craftstockco.com
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thevishantiverse.art
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elkerfly.com
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haerotechs.com
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candypalette.com
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gregdokes.com
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e-commerce.company
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gratitudeland.com
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companyintelcloud.com
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publicyazilim.com
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xc6811.com
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aracsozluk.com
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janesgalant.quest
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fraserstephendop.com
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ryan.rentals
Signatures
- Xloader
Xloader is a rebranded version of Formbook malware.
- Xloader payload 5 IoCs
- Suspicious use of SetThreadContext 4 IoCs
- Suspicious behavior: EnumeratesProcesses 31 IoCs
- Suspicious behavior: MapViewOfSection 6 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 25 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\yhjjbtf.dll,#12⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\yhjjbtf.dll,#13⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\yhjjbtf.dll,#14⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\help.exe"C:\Windows\SysWOW64\help.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe/c del "C:\Windows\SysWOW64\rundll32.exe"3⤵
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
memory/1212-6-0x0000000003A20000-0x0000000003B20000-memory.dmp
memory/1212-21-0x0000000007410000-0x0000000007580000-memory.dmp
memory/1212-12-0x0000000007410000-0x0000000007580000-memory.dmp
memory/1212-8-0x0000000006790000-0x0000000006903000-memory.dmp
memory/2368-11-0x00000000002B0000-0x00000000002C1000-memory.dmp
memory/2368-3-0x00000000020E0000-0x00000000023E3000-memory.dmp
memory/2368-7-0x0000000000270000-0x0000000000281000-memory.dmp
memory/2368-5-0x0000000000400000-0x0000000000429000-memory.dmp
memory/2368-1-0x0000000000400000-0x0000000000429000-memory.dmp
memory/2368-10-0x0000000000400000-0x0000000000429000-memory.dmp
memory/2600-16-0x00000000007E0000-0x0000000000AE3000-memory.dmp
memory/2600-13-0x00000000007D0000-0x00000000007D6000-memory.dmp
memory/2600-14-0x00000000007D0000-0x00000000007D6000-memory.dmp
memory/2600-15-0x0000000000080000-0x00000000000A9000-memory.dmp
memory/2600-17-0x0000000000080000-0x00000000000A9000-memory.dmp
memory/2600-19-0x0000000000530000-0x00000000005C0000-memory.dmp
memory/2940-2-0x0000000010000000-0x000000001000B000-memory.dmp
memory/2940-0-0x0000000010000000-0x000000001000B000-memory.dmp