latrodectus | 24746dfb4ac476772d7a1e936b714b9f0df30612395e4d8e7f31a2c43983bc55

Analysis

max time kernel
806s
max time network
1152s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
submitted
17-09-2024 17:28

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General

Target

API.msi
Size

1.8MB
MD5

b1c0657b678a8e3f320476ef4ba6dfd2
SHA1

883a69c2aa664a783b416ec44506aad9d03832d5
SHA256

24746dfb4ac476772d7a1e936b714b9f0df30612395e4d8e7f31a2c43983bc55
SHA512

89059e8f6ae5039cdac24e64cd3b3805691121963f395faee41fb1d8799134ae8ae5ba5f90fd29aec9e6625a4041fd7c2f70185167bf3bb85d4ddad8ab8a383a
SSDEEP

49152:fsE3YhW8zBQSc0ZnSKBZKumZr7AOMLQaaVLAY+Dpwe:1YY0Zn3K/ATLCpNe

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 5 IoCs

Detects Latrodectus v1.4.

resource	yara_rule
behavioral1/memory/4324-45-0x000001F9456C0000-0x000001F9456D6000-memory.dmp	family_latrodectus_1_4
behavioral1/memory/4324-44-0x000001F9456C0000-0x000001F9456D6000-memory.dmp	family_latrodectus_1_4
behavioral1/memory/740-50-0x000001E0DA550000-0x000001E0DA566000-memory.dmp	family_latrodectus_1_4
behavioral1/memory/740-52-0x000001E0DA550000-0x000001E0DA566000-memory.dmp	family_latrodectus_1_4
behavioral1/memory/740-51-0x000001E0DA550000-0x000001E0DA566000-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	740	rundll32.exe
55	740	rundll32.exe
63	740	rundll32.exe
64	740	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)	\??\O:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe

Drops file in Windows directory 12 IoCs

description	ioc	Process
File created	C:\Windows\Installer\SourceHash{72A77E3B-B705-4CCF-8F7A-0CB540D0E61A}	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIC1AE.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIC299.tmp	msiexec.exe
File created	C:\Windows\Installer\e57bf77.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIBFB6.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIC0C1.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIC0F0.tmp	msiexec.exe
File created	C:\Windows\Installer\inprogressinstallinfo.ipi	msiexec.exe
File opened for modification	C:\Windows\Installer\e57bf77.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\MSIC111.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\	msiexec.exe

Executes dropped EXE 1 IoCs

pid	Process
4084	MSIC299.tmp

Loads dropped DLL 6 IoCs

pid	Process
4344	MsiExec.exe
4344	MsiExec.exe
4344	MsiExec.exe
4344	MsiExec.exe
4324	rundll32.exe
740	rundll32.exe

Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs

persistence privilege_escalation

Installer Packages

T1546.016

Msiexec

T1218.007

pid	Process
3372	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	MSIC299.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
2000	msiexec.exe
2000	msiexec.exe

Suspicious use of AdjustPrivilegeToken 63 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3372	msiexec.exe
Token: SeIncreaseQuotaPrivilege	3372	msiexec.exe
Token: SeSecurityPrivilege	2000	msiexec.exe
Token: SeCreateTokenPrivilege	3372	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	3372	msiexec.exe
Token: SeLockMemoryPrivilege	3372	msiexec.exe
Token: SeIncreaseQuotaPrivilege	3372	msiexec.exe
Token: SeMachineAccountPrivilege	3372	msiexec.exe
Token: SeTcbPrivilege	3372	msiexec.exe
Token: SeSecurityPrivilege	3372	msiexec.exe
Token: SeTakeOwnershipPrivilege	3372	msiexec.exe
Token: SeLoadDriverPrivilege	3372	msiexec.exe
Token: SeSystemProfilePrivilege	3372	msiexec.exe
Token: SeSystemtimePrivilege	3372	msiexec.exe
Token: SeProfSingleProcessPrivilege	3372	msiexec.exe
Token: SeIncBasePriorityPrivilege	3372	msiexec.exe
Token: SeCreatePagefilePrivilege	3372	msiexec.exe
Token: SeCreatePermanentPrivilege	3372	msiexec.exe
Token: SeBackupPrivilege	3372	msiexec.exe
Token: SeRestorePrivilege	3372	msiexec.exe
Token: SeShutdownPrivilege	3372	msiexec.exe
Token: SeDebugPrivilege	3372	msiexec.exe
Token: SeAuditPrivilege	3372	msiexec.exe
Token: SeSystemEnvironmentPrivilege	3372	msiexec.exe
Token: SeChangeNotifyPrivilege	3372	msiexec.exe
Token: SeRemoteShutdownPrivilege	3372	msiexec.exe
Token: SeUndockPrivilege	3372	msiexec.exe
Token: SeSyncAgentPrivilege	3372	msiexec.exe
Token: SeEnableDelegationPrivilege	3372	msiexec.exe
Token: SeManageVolumePrivilege	3372	msiexec.exe
Token: SeImpersonatePrivilege	3372	msiexec.exe
Token: SeCreateGlobalPrivilege	3372	msiexec.exe
Token: SeBackupPrivilege	2800	vssvc.exe
Token: SeRestorePrivilege	2800	vssvc.exe
Token: SeAuditPrivilege	2800	vssvc.exe
Token: SeBackupPrivilege	2000	msiexec.exe
Token: SeRestorePrivilege	2000	msiexec.exe
Token: SeRestorePrivilege	2000	msiexec.exe
Token: SeTakeOwnershipPrivilege	2000	msiexec.exe
Token: SeRestorePrivilege	2000	msiexec.exe
Token: SeTakeOwnershipPrivilege	2000	msiexec.exe
Token: SeRestorePrivilege	2000	msiexec.exe
Token: SeTakeOwnershipPrivilege	2000	msiexec.exe
Token: SeRestorePrivilege	2000	msiexec.exe
Token: SeTakeOwnershipPrivilege	2000	msiexec.exe
Token: SeRestorePrivilege	2000	msiexec.exe
Token: SeTakeOwnershipPrivilege	2000	msiexec.exe
Token: SeRestorePrivilege	2000	msiexec.exe
Token: SeTakeOwnershipPrivilege	2000	msiexec.exe
Token: SeRestorePrivilege	2000	msiexec.exe
Token: SeTakeOwnershipPrivilege	2000	msiexec.exe
Token: SeRestorePrivilege	2000	msiexec.exe
Token: SeTakeOwnershipPrivilege	2000	msiexec.exe
Token: SeRestorePrivilege	2000	msiexec.exe
Token: SeTakeOwnershipPrivilege	2000	msiexec.exe
Token: SeBackupPrivilege	1932	srtasks.exe
Token: SeRestorePrivilege	1932	srtasks.exe
Token: SeSecurityPrivilege	1932	srtasks.exe
Token: SeTakeOwnershipPrivilege	1932	srtasks.exe
Token: SeBackupPrivilege	1932	srtasks.exe
Token: SeRestorePrivilege	1932	srtasks.exe
Token: SeSecurityPrivilege	1932	srtasks.exe
Token: SeTakeOwnershipPrivilege	1932	srtasks.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3372	msiexec.exe
3372	msiexec.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 1932	2000	msiexec.exe	92
PID 2000 wrote to memory of 1932	2000	msiexec.exe	92
PID 2000 wrote to memory of 4344	2000	msiexec.exe	94
PID 2000 wrote to memory of 4344	2000	msiexec.exe	94
PID 2000 wrote to memory of 4344	2000	msiexec.exe	94
PID 2000 wrote to memory of 4084	2000	msiexec.exe	95
PID 2000 wrote to memory of 4084	2000	msiexec.exe	95
PID 2000 wrote to memory of 4084	2000	msiexec.exe	95
PID 4324 wrote to memory of 740	4324	rundll32.exe	99
PID 4324 wrote to memory of 740	4324	rundll32.exe	99

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\API.msi
1⤵
- Enumerates connected drives
- Event Triggered Execution: Installer Packages
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:3372

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:2000
- C:\Windows\system32\srtasks.exe
  C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1932
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding 0000ECEC94E427F7AEAC9B88AA325C97
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:4344
- C:\Windows\Installer\MSIC299.tmp
  "C:\Windows\Installer\MSIC299.tmp" /DontWait C:/Windows/System32/rundll32.exe C:\Users\Admin\AppData\Roaming\rozelin.dll, Host
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4084

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
PID:2800

C:\Windows\System32\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\rozelin.dll, Host
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4324
- C:\Windows\System32\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_893835d6.dll", Host
  2⤵
  - Blocklisted process makes network request
  - Loads dropped DLL
  PID:740

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\e57bf7a.rbs

Filesize
1KB

MD5
63369182ad33f32010009e732aea9de6

SHA1
03976f883c9a2d0c73e3ea5daaa2e614cab286b2

SHA256
9c0b6e2a05e7a83d679f2f392fb9a371fbde5ebe068cd6ef327dc98bb73a7970

SHA512
1154f3cfb141efe89eafb1a72a426407baa6f69a9027fa7c2927d3d3dd1e981937fa78909241f6b829ca431458fe9e19c20452ad6f60a66d038988e5c8ad5a13

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

Filesize
1.5MB

MD5
f9bb8819674b780198ec05761a3ed0d6

SHA1
4c61542d76a0107eb80a950c33cd9bd5029a9b32

SHA256
3af3c1b6c72f09371c9975eb0914c5b187ba363c0cddf8164d14a0b7c1fcb5dc

SHA512
7b636446567b453c37a28b904d9f716a2aaff54676270760702995efdb521a10ae5f1a9254529eadc092b678a3b99e59efaec444f7f923d8e213298ae48f4fdc

Download Submit
C:\Windows\Installer\MSIBFB6.tmp

Filesize
436KB

MD5
475d20c0ea477a35660e3f67ecf0a1df

SHA1
67340739f51e1134ae8f0ffc5ae9dd710e8e3a08

SHA256
426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd

SHA512
99525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e

Download Submit
C:\Windows\Installer\MSIC299.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
dd49a06253c717b10ee166366d9e402a

SHA1
7ae40250a6021b6631f5ab296f99c27c3f1ea974

SHA256
110145b21e90b2a69b3fc388452d83b84bd63e8df7db16d3fec1557adb5f961f

SHA512
b6e01aa5e2df0bb5cc930ed3609e908727dbb65ad90defb70d134dbad33372b06f010db51abfdd0eabc152f4525dcc09ef8b740a0560ab4ecaa6f5f20ecbb1c7

Download Submit
\??\Volume{f171a6e7-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{1fd4108c-d974-4e3f-adde-a1ceccd34f2c}_OnDiskSnapshotProp

Filesize
6KB

MD5
1216b3c3041c4d96bc46a8a9e2c3b39d

SHA1
87841ad1a43ef9aac604369d4fcc5df5f3d86965

SHA256
741c162333d04fed56227f7e73a470c5c0822e49ba02565c1134dce00299d9dd

SHA512
9a0086d434606e742b4bd6efadc4b13f96efb84b95839b527cadfe2bcd82c9a57783f096261c6caedf0123e3e6a7936312c54e0901eb4c8686480e8c729689a6

Download Submit
memory/740-50-0x000001E0DA550000-0x000001E0DA566000-memory.dmp

Filesize
88KB

Download
memory/740-52-0x000001E0DA550000-0x000001E0DA566000-memory.dmp

Filesize
88KB

Download
memory/740-51-0x000001E0DA550000-0x000001E0DA566000-memory.dmp

Filesize
88KB

Download
memory/4324-45-0x000001F9456C0000-0x000001F9456D6000-memory.dmp

Filesize
88KB

Download
memory/4324-44-0x000001F9456C0000-0x000001F9456D6000-memory.dmp

Filesize
88KB

Download
memory/4324-48-0x0000000180000000-0x0000000180190000-memory.dmp

Filesize
1.6MB

Download