latrodectus | f60c7e2cd7078584e1fb2eacd6270c314f1e23f76a4cd78c5d13eec215f0e41c

Analysis

max time kernel
774s
max time network
1158s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
submitted
13-09-2024 11:18

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General

Target

vfs.msi
Size

1.9MB
MD5

c017277279dada1b9653bc6838019952
SHA1

4d66580dade368ea823c2afc602ad3686c20d4d1
SHA256

f60c7e2cd7078584e1fb2eacd6270c314f1e23f76a4cd78c5d13eec215f0e41c
SHA512

cd9fea4bfa73987fb95e4e15ee6fa5c489842b79f8a497ea7dd65ec355db9df6d4af786612e6d9f43e7293723a91841465368728fb1b5361716a9297008adfa2
SSDEEP

49152:QGN3YhW8zBQSc0ZnSKBZKumZr7ANpTdzZfVSlaMBOno:3YY0Zn3K/ANPzbSlaBno

Score

10^/10

latrodectus discovery loader persistence privilege_escalation

Malware Config

Extracted

Family

latrodectus

https://isomicrotich.com/test/

https://rilomenifis.com/test/

Signatures

Detects Latrodectus 4 IoCs

Detects Latrodectus v1.4.

resource	yara_rule
behavioral1/memory/4240-44-0x0000023D3AC60000-0x0000023D3AC76000-memory.dmp	family_latrodectus_1_4
behavioral1/memory/4240-45-0x0000023D3AC60000-0x0000023D3AC76000-memory.dmp	family_latrodectus_1_4
behavioral1/memory/2440-51-0x000002AC272D0000-0x000002AC272E6000-memory.dmp	family_latrodectus_1_4
behavioral1/memory/2440-50-0x000002AC272D0000-0x000002AC272E6000-memory.dmp	family_latrodectus_1_4

Latrodectus family
latrodectus
Latrodectus loader
Latrodectus is a loader written in C++.
loader latrodectus

Blocklisted process makes network request 4 IoCs

flow	pid	Process
52	2440	rundll32.exe
54	2440	rundll32.exe
63	2440	rundll32.exe
64	2440	rundll32.exe

Enumerates connected drives 3 TTPs 46 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\O:	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)	\??\M:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
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)	\??\Y:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe

Drops file in Windows directory 12 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Installer\MSIA944.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIAA10.tmp	msiexec.exe
File created	C:\Windows\Installer\e57a681.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIA859.tmp	msiexec.exe
File created	C:\Windows\Installer\inprogressinstallinfo.ipi	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIA7F9.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIA838.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\	msiexec.exe
File created	C:\Windows\Installer\SourceHash{72A77E3B-B705-4CCF-8F7A-0CB540D0E61A}	msiexec.exe
File opened for modification	C:\Windows\Installer\e57a681.msi	msiexec.exe
File opened for modification	C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.log	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIA6B0.tmp	msiexec.exe

Executes dropped EXE 1 IoCs

pid	Process
4320	MSIAA10.tmp

Loads dropped DLL 6 IoCs

pid	Process
3396	MsiExec.exe
3396	MsiExec.exe
3396	MsiExec.exe
3396	MsiExec.exe
4240	rundll32.exe
2440	rundll32.exe

Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs

persistence privilege_escalation

Installer Packages

T1546.016

Msiexec

T1218.007

pid	Process
3428	msiexec.exe

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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MsiExec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSIAA10.tmp

Checks SCSI registry key(s) 3 TTPs 5 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters	vssvc.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr	vssvc.exe
Set value (data)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr\PartitionTableCache = 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	vssvc.exe
Set value (data)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr\SnapshotDataCache = 534e41505041525401000000700000008ec7416a0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	vssvc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4944	msiexec.exe
4944	msiexec.exe

Suspicious use of AdjustPrivilegeToken 63 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3428	msiexec.exe
Token: SeIncreaseQuotaPrivilege	3428	msiexec.exe
Token: SeSecurityPrivilege	4944	msiexec.exe
Token: SeCreateTokenPrivilege	3428	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	3428	msiexec.exe
Token: SeLockMemoryPrivilege	3428	msiexec.exe
Token: SeIncreaseQuotaPrivilege	3428	msiexec.exe
Token: SeMachineAccountPrivilege	3428	msiexec.exe
Token: SeTcbPrivilege	3428	msiexec.exe
Token: SeSecurityPrivilege	3428	msiexec.exe
Token: SeTakeOwnershipPrivilege	3428	msiexec.exe
Token: SeLoadDriverPrivilege	3428	msiexec.exe
Token: SeSystemProfilePrivilege	3428	msiexec.exe
Token: SeSystemtimePrivilege	3428	msiexec.exe
Token: SeProfSingleProcessPrivilege	3428	msiexec.exe
Token: SeIncBasePriorityPrivilege	3428	msiexec.exe
Token: SeCreatePagefilePrivilege	3428	msiexec.exe
Token: SeCreatePermanentPrivilege	3428	msiexec.exe
Token: SeBackupPrivilege	3428	msiexec.exe
Token: SeRestorePrivilege	3428	msiexec.exe
Token: SeShutdownPrivilege	3428	msiexec.exe
Token: SeDebugPrivilege	3428	msiexec.exe
Token: SeAuditPrivilege	3428	msiexec.exe
Token: SeSystemEnvironmentPrivilege	3428	msiexec.exe
Token: SeChangeNotifyPrivilege	3428	msiexec.exe
Token: SeRemoteShutdownPrivilege	3428	msiexec.exe
Token: SeUndockPrivilege	3428	msiexec.exe
Token: SeSyncAgentPrivilege	3428	msiexec.exe
Token: SeEnableDelegationPrivilege	3428	msiexec.exe
Token: SeManageVolumePrivilege	3428	msiexec.exe
Token: SeImpersonatePrivilege	3428	msiexec.exe
Token: SeCreateGlobalPrivilege	3428	msiexec.exe
Token: SeBackupPrivilege	1268	vssvc.exe
Token: SeRestorePrivilege	1268	vssvc.exe
Token: SeAuditPrivilege	1268	vssvc.exe
Token: SeBackupPrivilege	4944	msiexec.exe
Token: SeRestorePrivilege	4944	msiexec.exe
Token: SeRestorePrivilege	4944	msiexec.exe
Token: SeTakeOwnershipPrivilege	4944	msiexec.exe
Token: SeRestorePrivilege	4944	msiexec.exe
Token: SeTakeOwnershipPrivilege	4944	msiexec.exe
Token: SeRestorePrivilege	4944	msiexec.exe
Token: SeTakeOwnershipPrivilege	4944	msiexec.exe
Token: SeRestorePrivilege	4944	msiexec.exe
Token: SeTakeOwnershipPrivilege	4944	msiexec.exe
Token: SeRestorePrivilege	4944	msiexec.exe
Token: SeTakeOwnershipPrivilege	4944	msiexec.exe
Token: SeRestorePrivilege	4944	msiexec.exe
Token: SeTakeOwnershipPrivilege	4944	msiexec.exe
Token: SeRestorePrivilege	4944	msiexec.exe
Token: SeTakeOwnershipPrivilege	4944	msiexec.exe
Token: SeRestorePrivilege	4944	msiexec.exe
Token: SeTakeOwnershipPrivilege	4944	msiexec.exe
Token: SeRestorePrivilege	4944	msiexec.exe
Token: SeTakeOwnershipPrivilege	4944	msiexec.exe
Token: SeBackupPrivilege	3160	srtasks.exe
Token: SeRestorePrivilege	3160	srtasks.exe
Token: SeSecurityPrivilege	3160	srtasks.exe
Token: SeTakeOwnershipPrivilege	3160	srtasks.exe
Token: SeBackupPrivilege	3160	srtasks.exe
Token: SeRestorePrivilege	3160	srtasks.exe
Token: SeSecurityPrivilege	3160	srtasks.exe
Token: SeTakeOwnershipPrivilege	3160	srtasks.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3428	msiexec.exe
3428	msiexec.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4944 wrote to memory of 3160	4944	msiexec.exe	97
PID 4944 wrote to memory of 3160	4944	msiexec.exe	97
PID 4944 wrote to memory of 3396	4944	msiexec.exe	99
PID 4944 wrote to memory of 3396	4944	msiexec.exe	99
PID 4944 wrote to memory of 3396	4944	msiexec.exe	99
PID 4944 wrote to memory of 4320	4944	msiexec.exe	101
PID 4944 wrote to memory of 4320	4944	msiexec.exe	101
PID 4944 wrote to memory of 4320	4944	msiexec.exe	101
PID 4240 wrote to memory of 2440	4240	rundll32.exe	104
PID 4240 wrote to memory of 2440	4240	rundll32.exe	104

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.
persistence

Query Registry
T1012
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Windows\system32\msiexec.exe
msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\vfs.msi
1⤵
- Enumerates connected drives
- Event Triggered Execution: Installer Packages
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:3428

C:\Windows\system32\msiexec.exe
C:\Windows\system32\msiexec.exe /V
1⤵
- Enumerates connected drives
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4944
- C:\Windows\system32\srtasks.exe
  C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3160
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding 25FBE7EE21EEC2F219617C51865FB42A
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:3396
- C:\Windows\Installer\MSIAA10.tmp
  "C:\Windows\Installer\MSIAA10.tmp" /DontWait C:/Windows/System32/rundll32.exe C:\Users\Admin\AppData\Roaming\true.dll, NvPluginGetInfo
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4320

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
PID:1268

C:\Windows\System32\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\true.dll, NvPluginGetInfo
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4240
- C:\Windows\System32\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_893835d6.dll", NvPluginGetInfo
  2⤵
  - Blocklisted process makes network request
  - Loads dropped DLL
  PID:2440

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

Installer Packages

T1546.016

Privilege Escalation

Event Triggered Execution

T1546

Installer Packages

T1546.016

Defense Evasion

System Binary Proxy Execution

T1218

Msiexec

T1218.007

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Config.Msi\e57a684.rbs

Filesize
1KB

MD5
bd7ebfa5c2e74ae1f056596685926789

SHA1
93937bb94a8141f108832b448a2233257e8a69c5

SHA256
3ef224d21559a38b665e52c5489d76aed6b74b9fa53a0de0d096a54c57c60a1a

SHA512
72d7cbbd03bb6f1292c3dc8385f3d4fb4be3dee680c459de79fc6bea1a4c3e850b497ad00932a8e4ef7bc7c93324dc645dba0c1cf785bccd439b496b5550abcf

Download Submit
C:\Users\Admin\AppData\Roaming\true.dll

Filesize
1.8MB

MD5
6dc0d350d735fd1acc8219cfa5d02b9b

SHA1
7ba0708a4404715fb21a23acfbd88a25b7245ef1

SHA256
2333dd858fc40899a1bff3fb39fbc0b4e65a864bfd4eb73c26b48aaddcca7061

SHA512
99c9b6310363ce3a7d9ff680c4a0ae976553fc4789b12f9b60d9f629608d90cf4d64b4c8a037264f8aaa48fba69ae397236ef4c32c2eb6779fb5d9e0b3b0d52f

Download Submit
C:\Windows\Installer\MSIA6B0.tmp

Filesize
436KB

MD5
475d20c0ea477a35660e3f67ecf0a1df

SHA1
67340739f51e1134ae8f0ffc5ae9dd710e8e3a08

SHA256
426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd

SHA512
99525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e

Download Submit
C:\Windows\Installer\MSIAA10.tmp

Filesize
389KB

MD5
b9545ed17695a32face8c3408a6a3553

SHA1
f6c31c9cd832ae2aebcd88e7b2fa6803ae93fc83

SHA256
1e0e63b446eecf6c9781c7d1cae1f46a3bb31654a70612f71f31538fb4f4729a

SHA512
f6d6dc40dcba5ff091452d7cc257427dcb7ce2a21816b4fec2ee249e63246b64667f5c4095220623533243103876433ef8c12c9b612c0e95fdfffe41d1504e04

Download Submit
\??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2

Filesize
23.7MB

MD5
9ec9fb6fa1c8d721e1387bdeb1785089

SHA1
60f5a91861516a73a2440437ca3b532261f842f4

SHA256
23c6f3dba504e9d7a6848b0a569d6e96a61533f7fd7e66e801b5026fa587b928

SHA512
d7080ac96e1bbfdda5d6c9d4c3c164f5fc0ad8fe6d7c5435bc312f8561bc41ede7815f811e73d8a5a8efb3fdb2dd3055088415236111dadf29ccf780838c1d23

Download Submit
\??\Volume{f171a6e7-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{5625dcc3-6b93-48b7-ba0d-f5061cbca075}_OnDiskSnapshotProp

Filesize
6KB

MD5
9872f3779cb43e7a5cbef4ce2ebefc13

SHA1
719cdd6514dad567d4f500ca5999b8ba0e7d8b67

SHA256
b87a0f4db9ff2a4e045ad87719a0718128af71ec922b076a87223412bfd00566

SHA512
b561357b9ef80d0ca8f57ff8cd6b2775fba98ed02e325673e754ebeb9478891e9b967e6d10f5f34337cf4efac8efd9526bbd2d9123068aadf32733e21d151d13

Download Submit
memory/2440-51-0x000002AC272D0000-0x000002AC272E6000-memory.dmp

Filesize
88KB

Download
memory/2440-50-0x000002AC272D0000-0x000002AC272E6000-memory.dmp

Filesize
88KB

Download
memory/4240-44-0x0000023D3AC60000-0x0000023D3AC76000-memory.dmp

Filesize
88KB

Download
memory/4240-45-0x0000023D3AC60000-0x0000023D3AC76000-memory.dmp

Filesize
88KB

Download
memory/4240-48-0x0000000180000000-0x00000001801DC000-memory.dmp

Filesize
1.9MB

Download