Analysis
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max time kernel
139s -
max time network
130s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
26/05/2024, 11:45
Static task
static1
Behavioral task
behavioral1
Sample
a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe
Resource
win10v2004-20240508-en
General
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Target
a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe
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Size
9.6MB
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MD5
0185b65cbd159d77d5134003a55fca6d
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SHA1
591531498a699f7c5cd362c108e9727f521eb750
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SHA256
a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5
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SHA512
165c7048aff46b5e00e8c75cb273895c6fd97387c2aa18096a54fa6f75db8952fbe2b3a8ea75dbd0f67449fd5a3402e56d71bf4ab7d955a1b84fc7d3310594ff
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SSDEEP
196608:mINvyoHJD9jJzkJLNtm9u/i9jxIRpbp/ucD569ivLS6ef2X2m2+IJb:m2HpD9j4Lau/OS3pWM5JvLS6efKH2+o
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe -
Loads dropped DLL 2 IoCs
pid Process 2516 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe 800 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe -
resource yara_rule behavioral2/memory/2516-17-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/2516-34-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/2516-62-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/2516-60-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/2516-58-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/2516-56-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/2516-54-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/2516-52-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/2516-50-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/2516-48-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/2516-46-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/2516-44-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/2516-40-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/2516-38-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/2516-36-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/2516-32-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/2516-30-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/2516-28-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/2516-26-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/2516-24-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/2516-22-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/2516-21-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/2516-20-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/2516-19-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/2516-42-0x0000000010000000-0x000000001003E000-memory.dmp upx -
Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\E: a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 2516 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe 800 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 2 IoCs
pid pid_target Process procid_target 2676 2516 WerFault.exe 89 3740 800 WerFault.exe 95 -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 2516 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe 2516 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe 2516 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe 2516 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe 800 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe 800 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe 800 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe 800 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2516 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe Token: SeDebugPrivilege 800 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe -
Suspicious use of SetWindowsHookEx 11 IoCs
pid Process 2516 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe 2516 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe 2516 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe 2516 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe 800 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe 800 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe 800 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe 800 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe 800 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe 800 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe 800 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2516 wrote to memory of 800 2516 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe 95 PID 2516 wrote to memory of 800 2516 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe 95 PID 2516 wrote to memory of 800 2516 a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe 95
Processes
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C:\Users\Admin\AppData\Local\Temp\a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe"C:\Users\Admin\AppData\Local\Temp\a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2516 -
C:\Users\Admin\AppData\Local\Temp\a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe"C:\Users\Admin\AppData\Local\Temp\a33f5b7211ad0b65645e13dc2294799e206b3a37c2e36126d00651cf03228fc5.exe" 18972852⤵
- Loads dropped DLL
- Enumerates connected drives
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:800 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 800 -s 11003⤵
- Program crash
PID:3740
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2516 -s 10482⤵
- Program crash
PID:2676
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2516 -ip 25161⤵PID:2192
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4532,i,1999448010053300448,1112699187621658374,262144 --variations-seed-version --mojo-platform-channel-handle=3404 /prefetch:81⤵PID:2364
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 800 -ip 8001⤵PID:4856
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
8.4MB
MD58b6c94bbdbfb213e94a5dcb4fac28ce3
SHA1b56102ca4f03556f387f8b30e2b404efabe0cb65
SHA256982a177924762f270b36fe34c7d6847392b48ae53151dc2011078dceef487a53
SHA5129d6d63b5d8cf7a978d7e91126d7a343c2f7acd00022da9d692f63e50835fdd84a59a93328564f10622f2b1f6adfd7febdd98b8ddb294d0754ed45cc9c165d25a