Analysis
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max time kernel
148s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system -
submitted
27-06-2024 22:19
Static task
static1
General
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Target
index.exe
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Size
36.2MB
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MD5
aa55396d7df072973d0ea88ec505579d
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SHA1
8a9b057a859cee6ca3053dc0ef05089bbf2ac4ab
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SHA256
375f99f85beb8bc69029429b3c5317543957ffa7ba559da6fd4b930ce48bfc7c
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SHA512
969b634ed5aa5075b9b48ebabcf0e9093c530578ec292e67582db16f84437f4a2823130e354b0054f909ec361b145dc4236b57a9991d4974738924f44e06a2ff
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SSDEEP
393216:f1Du8BtuBw2FEL3Z3aLUoQvo6LP/SgbSpYvKEh1EdKwlGQKPJuGsiTfREsrgCYfG:fMguj8Q4VfvvqFTrYmi
Malware Config
Extracted
quasar
3.1.5
SeroXen
147.185.221.20:47638
$Sxr-GV6wZsGZZMeZ3qfenc
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encryption_key
pCYwpdVg3UP8ZY0FIEl9
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Windows Defender Anti-Malware Disable Startup
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subdirectory
SubDir
Signatures
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Quasar payload 1 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\89435a09aea852638faa0bf902e7b347.bat family_quasar -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 768 powershell.exe 768 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
powershell.exeAUDIODG.EXEdescription pid process Token: SeDebugPrivilege 768 powershell.exe Token: 33 1232 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 1232 AUDIODG.EXE -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
index.execmd.exepowershell.execsc.exedescription pid process target process PID 3808 wrote to memory of 1556 3808 index.exe cmd.exe PID 3808 wrote to memory of 1556 3808 index.exe cmd.exe PID 3808 wrote to memory of 4860 3808 index.exe cmd.exe PID 3808 wrote to memory of 4860 3808 index.exe cmd.exe PID 1556 wrote to memory of 768 1556 cmd.exe powershell.exe PID 1556 wrote to memory of 768 1556 cmd.exe powershell.exe PID 768 wrote to memory of 4188 768 powershell.exe csc.exe PID 768 wrote to memory of 4188 768 powershell.exe csc.exe PID 4188 wrote to memory of 4304 4188 csc.exe cvtres.exe PID 4188 wrote to memory of 4304 4188 csc.exe cvtres.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\index.exe"C:\Users\Admin\AppData\Local\Temp\index.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:3808 -
C:\Windows\system32\cmd.execmd.exe /C call powershell -E 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2⤵
- Suspicious use of WriteProcessMemory
PID:1556 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -E QQBkAGQALQBUAHkAcABlACAAQAAiAAoAIAAgACAAIAB1AHMAaQBuAGcAIABTAHkAcwB0AGUAbQA7AAoAIAAgACAAIAB1AHMAaQBuAGcAIABTAHkAcwB0AGUAbQAuAFIAdQBuAHQAaQBtAGUALgBJAG4AdABlAHIAbwBwAFMAZQByAHYAaQBjAGUAcwA7AAoAIAAgACAAIABwAHUAYgBsAGkAYwAgAGMAbABhAHMAcwAgAEMAbwBuAHMAbwBsAGUAVwBpAG4AZABvAHcAVQB0AGkAbABzACAAewAKACAAIAAgACAAIAAgACAAIABbAEQAbABsAEkAbQBwAG8AcgB0ACgAIgBrAGUAcgBuAGUAbAAzADIALgBkAGwAbAAiACkAXQAKACAAIAAgACAAIAAgACAAIABwAHUAYgBsAGkAYwAgAHMAdABhAHQAaQBjACAAZQB4AHQAZQByAG4AIABJAG4AdABQAHQAcgAgAEcAZQB0AEMAbwBuAHMAbwBsAGUAVwBpAG4AZABvAHcAKAApADsACgAgACAAIAAgACAAIAAgACAACgAgACAAIAAgACAAIAAgACAAWwBEAGwAbABJAG0AcABvAHIAdAAoACIAdQBzAGUAcgAzADIALgBkAGwAbAAiACkAXQAKACAAIAAgACAAIAAgACAAIABwAHUAYgBsAGkAYwAgAHMAdABhAHQAaQBjACAAZQB4AHQAZQByAG4AIABJAG4AdABQAHQAcgAgAEcAZQB0AFAAYQByAGUAbgB0ACgASQBuAHQAUAB0AHIAIABoAFcAbgBkACkAOwAKAAoAIAAgACAAIAAgACAAIAAgAFsARABsAGwASQBtAHAAbwByAHQAKAAiAHUAcwBlAHIAMwAyAC4AZABsAGwAIgApAF0ACgAgACAAIAAgACAAIAAgACAAcAB1AGIAbABpAGMAIABzAHQAYQB0AGkAYwAgAGUAeAB0AGUAcgBuACAAYgBvAG8AbAAgAFMAaABvAHcAVwBpAG4AZABvAHcAKABJAG4AdABQAHQAcgAgAGgAVwBuAGQALAAgAGkAbgB0ACAAbgBDAG0AZABTAGgAbwB3ACkAOwAKACAAIAAgACAAIAAgACAAIAAKACAAIAAgACAAIAAgACAAIABwAHUAYgBsAGkAYwAgAHMAdABhAHQAaQBjACAASQBuAHQAUAB0AHIAIABHAGUAdABUAGEAcgBnAGUAdABXAGkAbgBkAG8AdwAoACkAIAB7AAoAIAAgACAAIAAgACAAIAAgACAAIAAgACAASQBuAHQAUAB0AHIAIABjAG8AbgBzAG8AbABlAFcAaQBuAGQAbwB3ACAAPQAgAEcAZQB0AEMAbwBuAHMAbwBsAGUAVwBpAG4AZABvAHcAKAApADsACgAgACAAIAAgACAAIAAgACAAIAAgACAAIABJAG4AdABQAHQAcgAgAHAAYQByAGUAbgB0AFcAaQBuAGQAbwB3ACAAPQAgAEcAZQB0AFAAYQByAGUAbgB0ACgAYwBvAG4AcwBvAGwAZQBXAGkAbgBkAG8AdwApADsACgAgACAAIAAgACAAIAAgACAAIAAgACAAIAAKACAAIAAgACAAIAAgACAAIAAgACAAIAAgAGkAZgAgACgAcABhAHIAZQBuAHQAVwBpAG4AZABvAHcAIAA9AD0AIABJAG4AdABQAHQAcgAuAFoAZQByAG8AKQAgAHsACgAgACAAIAAgACAAIAAgACAAIAAgACAAIAAgACAAIAAgAHIAZQB0AHUAcgBuACAAYwBvAG4AcwBvAGwAZQBXAGkAbgBkAG8AdwA7AAoAIAAgACAAIAAgACAAIAAgACAAIAAgACAAfQAKACAAIAAgACAAIAAgACAAIAAgACAAIAAgAHIAZQB0AHUAcgBuACAAcABhAHIAZQBuAHQAVwBpAG4AZABvAHcAOwAKACAAIAAgACAAIAAgACAAIAB9AAoAIAAgACAAIAB9AAoAIgBAAAoACgBbAEMAbwBuAHMAbwBsAGUAVwBpAG4AZABvAHcAVQB0AGkAbABzAF0AOgA6AFMAaABvAHcAVwBpAG4AZABvAHcAKABbAEMAbwBuAHMAbwBsAGUAVwBpAG4AZABvAHcAVQB0AGkAbABzAF0AOgA6AEcAZQB0AFQAYQByAGcAZQB0AFcAaQBuAGQAbwB3ACgAKQAsACAAMAApACAAfAAgAE8AdQB0AC0ATgB1AGwAbAA=3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:768 -
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\34vu31dj\34vu31dj.cmdline"4⤵
- Suspicious use of WriteProcessMemory
PID:4188 -
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES3F89.tmp" "c:\Users\Admin\AppData\Local\Temp\34vu31dj\CSCA32D72FB6EEE4BFCADBA3D3CEF9DA51.TMP"5⤵PID:4304
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C:\Windows\system32\cmd.execmd.exe /C call C:\Users\Admin\AppData\Local\Temp\89435a09aea852638faa0bf902e7b347.bat2⤵PID:4860
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x494 0x4981⤵
- Suspicious use of AdjustPrivilegeToken
PID:1232
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
3KB
MD5cb860ea3f11cee4de8a43668618d3d56
SHA176f6488c4a50f49afcc45faeaa92f01b24086d80
SHA25673c40febb90efaeabf7e268feb3b1791e62cd66ca1fbcadd5a545ba2de6fbd5b
SHA5129a9a21c90a64b95fb281bc7fdd2707195459636c0f054ff1805a8ea5a18e655456691551d3857f9bbf074e5b6b6addf357ae10e1bc2d2ea567bcd080b618757f
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Filesize
409KB
MD5ef652484dc356b0bc87741f24f2ade24
SHA1f988ef8700c1ed15fa42f9a5756471d6bc18c9c8
SHA256e5e973ff9fe9b009638fc6f8e3b10ca9acad76d2c6cf887f82b018e5a39aa225
SHA512fae5a830fc64a0599686368ca0d3826e4ada1ec383f6faae19054d61bee285442b7471c8f18faf4d378ea025128cab974c50a0cd8f8daf892c6107d812662fec
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Filesize
1KB
MD513fa552e3baff84cebf9134f13eede6d
SHA14e6bf79b7e5d5e2950a55d6e05006e695c3f4585
SHA256163841a861ee580c5c7c99c512f83b1475e870fda346f8e2de651f5fa353f46f
SHA5123a5775b8967d9da6df6f9065444c3f01a882d9901753234fb9f4195d063492c381299d6259d16ff4c5350914313b843b5be0649d55365d0379dd3e8f7b54cc71
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
737B
MD53d57f8f44297464baafa6aeecd3bf4bc
SHA1f370b4b9f8dba01fbcad979bd663d341f358a509
SHA256415199eec01052503978381a4f88f4cd970b441fedce519905990ed8b629b0f1
SHA5124052dd65ca0a505a36c7c344671afcadb8f82cc24b0d1d8362f61565f9d37782e00332908444f6a95286dd1785d074762b27c20be1f361eec67807fad052d798
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Filesize
369B
MD523a59422c0a958cebe65acdb3c35bc92
SHA1be2a7d7f00b349855567802696cff6eed963bf2e
SHA2567c91458e002c970a8f0a3bc38253bbd989208d4b0a0becf34d040156ce8e7b32
SHA5123af07843c7edb98a88ba45d6d25dfefaaa5a694015d4f5ff47f9c8171dc95c4e7d97caf572a6d455f545f4b322bfaae35e736e568ddeea90db9c4813677df245
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Filesize
652B
MD5ab5375c2b94e2e9026c17b84f1bd1b07
SHA1b08a3ed911f1a76dccd4e42428f3f2a3e11e3e5f
SHA256dc94bb865c6995935711727e5261f216ee32086b33108ca707293dfdfdd3e44b
SHA5121e10eb1b0c653344abc986ebad0afbd397972d1b0c164717cbd74278c077eb5011404cda6bd835d5d145b8790a5db8f40f5aaa5d951920f98d58c350ba7ba058