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Analysis
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max time kernel
117s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240903-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 behavioral1/memory/1680-46-0x00000000002D0000-0x00000000002E6000-memory.dmp family_latrodectus_1_4 behavioral1/memory/1680-45-0x00000000002D0000-0x00000000002E6000-memory.dmp family_latrodectus_1_4 behavioral1/memory/1804-55-0x0000000000340000-0x0000000000356000-memory.dmp family_latrodectus_1_4 behavioral1/memory/1804-54-0x0000000000340000-0x0000000000356000-memory.dmp family_latrodectus_1_4 behavioral1/memory/1804-53-0x0000000000340000-0x0000000000356000-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 2408 MSI1C3E.tmp -
Loads dropped DLL 15 IoCs
pid Process 2708 MsiExec.exe 2708 MsiExec.exe 2708 MsiExec.exe 1680 rundll32.exe 1680 rundll32.exe 1680 rundll32.exe 1680 rundll32.exe 1804 rundll32.exe 1804 rundll32.exe 1804 rundll32.exe 1804 rundll32.exe 1488 rundll32.exe 1488 rundll32.exe 1488 rundll32.exe 1488 rundll32.exe -
Blocklisted process makes network request 1 IoCs
flow pid Process 2 2784 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) \??\J: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\M: msiexec.exe -
Drops file in Windows directory 9 IoCs
description ioc Process File opened for modification C:\Windows\Installer\MSI19C9.tmp msiexec.exe File opened for modification C:\Windows\Installer\MSI1A46.tmp msiexec.exe File opened for modification C:\Windows\Installer\ msiexec.exe File opened for modification C:\Windows\Installer\f771af2.ipi msiexec.exe File opened for modification C:\Windows\Installer\MSI120A.tmp msiexec.exe File opened for modification C:\Windows\Installer\MSI1A76.tmp msiexec.exe File created C:\Windows\Installer\f771af2.ipi msiexec.exe File opened for modification C:\Windows\Installer\MSI1BEE.tmp msiexec.exe File opened for modification C:\Windows\Installer\MSI1C3E.tmp 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 MSI1C3E.tmp -
Modifies data under HKEY_USERS 1 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad msiexec.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2784 msiexec.exe 2784 msiexec.exe -
Suspicious use of AdjustPrivilegeToken 52 IoCs
description pid Process Token: SeShutdownPrivilege 2184 wscript.exe Token: SeIncreaseQuotaPrivilege 2184 wscript.exe Token: SeRestorePrivilege 2784 msiexec.exe Token: SeTakeOwnershipPrivilege 2784 msiexec.exe Token: SeSecurityPrivilege 2784 msiexec.exe Token: SeCreateTokenPrivilege 2184 wscript.exe Token: SeAssignPrimaryTokenPrivilege 2184 wscript.exe Token: SeLockMemoryPrivilege 2184 wscript.exe Token: SeIncreaseQuotaPrivilege 2184 wscript.exe Token: SeMachineAccountPrivilege 2184 wscript.exe Token: SeTcbPrivilege 2184 wscript.exe Token: SeSecurityPrivilege 2184 wscript.exe Token: SeTakeOwnershipPrivilege 2184 wscript.exe Token: SeLoadDriverPrivilege 2184 wscript.exe Token: SeSystemProfilePrivilege 2184 wscript.exe Token: SeSystemtimePrivilege 2184 wscript.exe Token: SeProfSingleProcessPrivilege 2184 wscript.exe Token: SeIncBasePriorityPrivilege 2184 wscript.exe Token: SeCreatePagefilePrivilege 2184 wscript.exe Token: SeCreatePermanentPrivilege 2184 wscript.exe Token: SeBackupPrivilege 2184 wscript.exe Token: SeRestorePrivilege 2184 wscript.exe Token: SeShutdownPrivilege 2184 wscript.exe Token: SeDebugPrivilege 2184 wscript.exe Token: SeAuditPrivilege 2184 wscript.exe Token: SeSystemEnvironmentPrivilege 2184 wscript.exe Token: SeChangeNotifyPrivilege 2184 wscript.exe Token: SeRemoteShutdownPrivilege 2184 wscript.exe Token: SeUndockPrivilege 2184 wscript.exe Token: SeSyncAgentPrivilege 2184 wscript.exe Token: SeEnableDelegationPrivilege 2184 wscript.exe Token: SeManageVolumePrivilege 2184 wscript.exe Token: SeImpersonatePrivilege 2184 wscript.exe Token: SeCreateGlobalPrivilege 2184 wscript.exe Token: SeRestorePrivilege 2784 msiexec.exe Token: SeTakeOwnershipPrivilege 2784 msiexec.exe Token: SeRestorePrivilege 2784 msiexec.exe Token: SeTakeOwnershipPrivilege 2784 msiexec.exe Token: SeRestorePrivilege 2784 msiexec.exe Token: SeTakeOwnershipPrivilege 2784 msiexec.exe Token: SeRestorePrivilege 2784 msiexec.exe Token: SeTakeOwnershipPrivilege 2784 msiexec.exe Token: SeRestorePrivilege 2784 msiexec.exe Token: SeTakeOwnershipPrivilege 2784 msiexec.exe Token: SeRestorePrivilege 2784 msiexec.exe Token: SeTakeOwnershipPrivilege 2784 msiexec.exe Token: SeRestorePrivilege 2784 msiexec.exe Token: SeTakeOwnershipPrivilege 2784 msiexec.exe Token: SeRestorePrivilege 2784 msiexec.exe Token: SeTakeOwnershipPrivilege 2784 msiexec.exe Token: SeRestorePrivilege 2784 msiexec.exe Token: SeTakeOwnershipPrivilege 2784 msiexec.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 2784 wrote to memory of 2708 2784 msiexec.exe 31 PID 2784 wrote to memory of 2708 2784 msiexec.exe 31 PID 2784 wrote to memory of 2708 2784 msiexec.exe 31 PID 2784 wrote to memory of 2708 2784 msiexec.exe 31 PID 2784 wrote to memory of 2708 2784 msiexec.exe 31 PID 2784 wrote to memory of 2708 2784 msiexec.exe 31 PID 2784 wrote to memory of 2708 2784 msiexec.exe 31 PID 2784 wrote to memory of 2408 2784 msiexec.exe 32 PID 2784 wrote to memory of 2408 2784 msiexec.exe 32 PID 2784 wrote to memory of 2408 2784 msiexec.exe 32 PID 2784 wrote to memory of 2408 2784 msiexec.exe 32 PID 2784 wrote to memory of 2408 2784 msiexec.exe 32 PID 2784 wrote to memory of 2408 2784 msiexec.exe 32 PID 2784 wrote to memory of 2408 2784 msiexec.exe 32 PID 1680 wrote to memory of 1804 1680 rundll32.exe 34 PID 1680 wrote to memory of 1804 1680 rundll32.exe 34 PID 1680 wrote to memory of 1804 1680 rundll32.exe 34 PID 272 wrote to memory of 1488 272 taskeng.exe 38 PID 272 wrote to memory of 1488 272 taskeng.exe 38 PID 272 wrote to memory of 1488 272 taskeng.exe 38 -
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:2184
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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
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2784 -
C:\Windows\syswow64\MsiExec.exeC:\Windows\syswow64\MsiExec.exe -Embedding B1D0DE0324571C895C27B2A4DFB276532⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:2708
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C:\Windows\Installer\MSI1C3E.tmp"C:\Windows\Installer\MSI1C3E.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:2408
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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:1680 -
C:\Windows\System32\rundll32.exerundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_7915632f.dll", NvPluginGetInfo2⤵
- Loads dropped DLL
PID:1804
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C:\Windows\system32\taskeng.exetaskeng.exe {37E7ECDD-2BF3-45B3-89E1-D7E1BD6C1BCB} S-1-5-21-1488793075-819845221-1497111674-1000:UPNECVIU\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:272 -
C:\Windows\system32\rundll32.exerundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_7915632f.dll", NvPluginGetInfo2⤵
- Loads dropped DLL
PID:1488
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD5b930f92faf3477320729f5ceb4fbeb82
SHA1408b3fa36d7ef571d07447c3e9307c128f3afe25
SHA256614c23cf86d234acb28420a1e5d67a6d8b16ae1588130f01e144521383833140
SHA51276749b528aa0eb7fc754a955fc2c40062b5e0084caf1eec341862fb4bcae485a1e1bb2c70d685e9a8a96bb556276ac6ba4b7508b81edb4455e68008a18bf28d4
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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