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Analysis
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max time kernel
149s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
submitted
14/09/2024, 13:07
Static task
static1
Behavioral task
behavioral1
Sample
e31eaa04f39c59b97532303ae0cd41ddf8a24295bad8956d92b618b66bfecd1c.js
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
e31eaa04f39c59b97532303ae0cd41ddf8a24295bad8956d92b618b66bfecd1c.js
Resource
win10v2004-20240802-en
General
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Target
e31eaa04f39c59b97532303ae0cd41ddf8a24295bad8956d92b618b66bfecd1c.js
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Size
712KB
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MD5
ac220e1c5c5071a70f99a6a8200fe955
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SHA1
e5cf80d3df9fa75bbdb6b09a1dbe9c40258c0d3c
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SHA256
e31eaa04f39c59b97532303ae0cd41ddf8a24295bad8956d92b618b66bfecd1c
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SHA512
92a2fb2ba46c21e60a112dbff3d828caba9b2a3f6351c9c2352c8c025c4516e9c4003b98278dccf0cebffd8dca2ba5a788523189d1f084bdb5da5868c9fd501c
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SSDEEP
12288:rCLwKpVwxDdbSvKk5bDrD3PltUzvFhc2zs+jnkRuov7vjkji:+BpVeDdbSvP5bfD3P+NhM+jkRuUvoji
Malware Config
Extracted
latrodectus
https://isomicrotich.com/test/
https://rilomenifis.com/test/
Signatures
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Detects Latrodectus 5 IoCs
Detects Latrodectus v1.4.
resource yara_rule behavioral2/memory/1188-45-0x00000165ED080000-0x00000165ED096000-memory.dmp family_latrodectus_1_4 behavioral2/memory/1188-46-0x00000165ED080000-0x00000165ED096000-memory.dmp family_latrodectus_1_4 behavioral2/memory/3244-51-0x0000016B79DA0000-0x0000016B79DB6000-memory.dmp family_latrodectus_1_4 behavioral2/memory/3244-52-0x0000016B79DA0000-0x0000016B79DB6000-memory.dmp family_latrodectus_1_4 behavioral2/memory/3244-53-0x0000016B79DA0000-0x0000016B79DB6000-memory.dmp family_latrodectus_1_4 -
Latrodectus family
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Latrodectus loader
Latrodectus is a loader written in C++.
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Executes dropped EXE 1 IoCs
pid Process 4680 MSIBE45.tmp -
Loads dropped DLL 6 IoCs
pid Process 1920 MsiExec.exe 1920 MsiExec.exe 1920 MsiExec.exe 1920 MsiExec.exe 1188 rundll32.exe 3244 rundll32.exe -
Blocklisted process makes network request 1 IoCs
flow pid Process 3 1372 msiexec.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\M: msiexec.exe -
Drops file in Windows directory 10 IoCs
description ioc Process File opened for modification C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.log msiexec.exe File opened for modification C:\Windows\Installer\MSIBB81.tmp msiexec.exe File opened for modification C:\Windows\Installer\MSIBCAB.tmp msiexec.exe File opened for modification C:\Windows\Installer\MSIBD09.tmp msiexec.exe File opened for modification C:\Windows\Installer\MSIBD49.tmp msiexec.exe File opened for modification C:\Windows\Installer\MSIBDB7.tmp msiexec.exe File opened for modification C:\Windows\Installer\MSIAE32.tmp msiexec.exe File created C:\Windows\Installer\inprogressinstallinfo.ipi msiexec.exe File opened for modification C:\Windows\Installer\MSIBE45.tmp msiexec.exe File opened for modification C:\Windows\Installer\ msiexec.exe -
Command and Scripting Interpreter: JavaScript 1 TTPs
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MsiExec.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MSIBE45.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1372 msiexec.exe 1372 msiexec.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeShutdownPrivilege 3752 wscript.exe Token: SeIncreaseQuotaPrivilege 3752 wscript.exe Token: SeSecurityPrivilege 1372 msiexec.exe Token: SeCreateTokenPrivilege 3752 wscript.exe Token: SeAssignPrimaryTokenPrivilege 3752 wscript.exe Token: SeLockMemoryPrivilege 3752 wscript.exe Token: SeIncreaseQuotaPrivilege 3752 wscript.exe Token: SeMachineAccountPrivilege 3752 wscript.exe Token: SeTcbPrivilege 3752 wscript.exe Token: SeSecurityPrivilege 3752 wscript.exe Token: SeTakeOwnershipPrivilege 3752 wscript.exe Token: SeLoadDriverPrivilege 3752 wscript.exe Token: SeSystemProfilePrivilege 3752 wscript.exe Token: SeSystemtimePrivilege 3752 wscript.exe Token: SeProfSingleProcessPrivilege 3752 wscript.exe Token: SeIncBasePriorityPrivilege 3752 wscript.exe Token: SeCreatePagefilePrivilege 3752 wscript.exe Token: SeCreatePermanentPrivilege 3752 wscript.exe Token: SeBackupPrivilege 3752 wscript.exe Token: SeRestorePrivilege 3752 wscript.exe Token: SeShutdownPrivilege 3752 wscript.exe Token: SeDebugPrivilege 3752 wscript.exe Token: SeAuditPrivilege 3752 wscript.exe Token: SeSystemEnvironmentPrivilege 3752 wscript.exe Token: SeChangeNotifyPrivilege 3752 wscript.exe Token: SeRemoteShutdownPrivilege 3752 wscript.exe Token: SeUndockPrivilege 3752 wscript.exe Token: SeSyncAgentPrivilege 3752 wscript.exe Token: SeEnableDelegationPrivilege 3752 wscript.exe Token: SeManageVolumePrivilege 3752 wscript.exe Token: SeImpersonatePrivilege 3752 wscript.exe Token: SeCreateGlobalPrivilege 3752 wscript.exe Token: SeRestorePrivilege 1372 msiexec.exe Token: SeTakeOwnershipPrivilege 1372 msiexec.exe Token: SeRestorePrivilege 1372 msiexec.exe Token: SeTakeOwnershipPrivilege 1372 msiexec.exe Token: SeRestorePrivilege 1372 msiexec.exe Token: SeTakeOwnershipPrivilege 1372 msiexec.exe Token: SeRestorePrivilege 1372 msiexec.exe Token: SeTakeOwnershipPrivilege 1372 msiexec.exe Token: SeRestorePrivilege 1372 msiexec.exe Token: SeTakeOwnershipPrivilege 1372 msiexec.exe Token: SeRestorePrivilege 1372 msiexec.exe Token: SeTakeOwnershipPrivilege 1372 msiexec.exe Token: SeRestorePrivilege 1372 msiexec.exe Token: SeTakeOwnershipPrivilege 1372 msiexec.exe Token: SeRestorePrivilege 1372 msiexec.exe Token: SeTakeOwnershipPrivilege 1372 msiexec.exe Token: SeRestorePrivilege 1372 msiexec.exe Token: SeTakeOwnershipPrivilege 1372 msiexec.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1372 wrote to memory of 1920 1372 msiexec.exe 91 PID 1372 wrote to memory of 1920 1372 msiexec.exe 91 PID 1372 wrote to memory of 1920 1372 msiexec.exe 91 PID 1372 wrote to memory of 4680 1372 msiexec.exe 94 PID 1372 wrote to memory of 4680 1372 msiexec.exe 94 PID 1372 wrote to memory of 4680 1372 msiexec.exe 94 PID 1188 wrote to memory of 3244 1188 rundll32.exe 96 PID 1188 wrote to memory of 3244 1188 rundll32.exe 96 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\e31eaa04f39c59b97532303ae0cd41ddf8a24295bad8956d92b618b66bfecd1c.js1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3752
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C:\Windows\system32\msiexec.exeC:\Windows\system32\msiexec.exe /V1⤵
- Blocklisted process makes network request
- Enumerates connected drives
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1372 -
C:\Windows\syswow64\MsiExec.exeC:\Windows\syswow64\MsiExec.exe -Embedding 1906E8182BA894599A4CF91B3C1D62A52⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:1920
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C:\Windows\Installer\MSIBE45.tmp"C:\Windows\Installer\MSIBE45.tmp" /DontWait C:/Windows/System32/rundll32.exe C:\Users\Admin\AppData\Roaming\true.dll, NvPluginGetInfo2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4680
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C:\Windows\System32\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\true.dll, NvPluginGetInfo1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1188 -
C:\Windows\System32\rundll32.exerundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_8e7a47d6.dll", NvPluginGetInfo2⤵
- Loads dropped DLL
PID:3244
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD54e085f2dc53ded2acc42efa4541cead6
SHA1e4bd39090f6dbb3bb518bfa660c0340311aac03c
SHA2566c036fe5d786351f3225a975d0030ee408c1801523272e212f477967526a2afb
SHA5120341c7161d6ced449141edac58ea6033f020692420345fbbc5219b83e0f9bc3c8f68774abc15919fd8b0b9ba38b72bdb0498a315126d4e44b6fe2f1ef18d8113
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Filesize
1.8MB
MD56dc0d350d735fd1acc8219cfa5d02b9b
SHA17ba0708a4404715fb21a23acfbd88a25b7245ef1
SHA2562333dd858fc40899a1bff3fb39fbc0b4e65a864bfd4eb73c26b48aaddcca7061
SHA51299c9b6310363ce3a7d9ff680c4a0ae976553fc4789b12f9b60d9f629608d90cf4d64b4c8a037264f8aaa48fba69ae397236ef4c32c2eb6779fb5d9e0b3b0d52f
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Filesize
1.9MB
MD5c017277279dada1b9653bc6838019952
SHA14d66580dade368ea823c2afc602ad3686c20d4d1
SHA256f60c7e2cd7078584e1fb2eacd6270c314f1e23f76a4cd78c5d13eec215f0e41c
SHA512cd9fea4bfa73987fb95e4e15ee6fa5c489842b79f8a497ea7dd65ec355db9df6d4af786612e6d9f43e7293723a91841465368728fb1b5361716a9297008adfa2
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Filesize
436KB
MD5475d20c0ea477a35660e3f67ecf0a1df
SHA167340739f51e1134ae8f0ffc5ae9dd710e8e3a08
SHA256426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd
SHA51299525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e
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Filesize
389KB
MD5b9545ed17695a32face8c3408a6a3553
SHA1f6c31c9cd832ae2aebcd88e7b2fa6803ae93fc83
SHA2561e0e63b446eecf6c9781c7d1cae1f46a3bb31654a70612f71f31538fb4f4729a
SHA512f6d6dc40dcba5ff091452d7cc257427dcb7ce2a21816b4fec2ee249e63246b64667f5c4095220623533243103876433ef8c12c9b612c0e95fdfffe41d1504e04