latrodectus | 3d2551d65e6327d15dea8779e9de70c320202d3f0ea1bb739f79970d6cec879f

Analysis

max time kernel
93s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
submitted
14/09/2024, 01:33

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General

Target

f60c7e2cd7078584e1fb2eacd6270c314f1e23f76a4cd78c5d13eec215f0e41c.msi

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
behavioral2/memory/2940-46-0x00000288E7D30000-0x00000288E7D46000-memory.dmp	family_latrodectus_1_4
behavioral2/memory/2940-48-0x00000288E7D30000-0x00000288E7D46000-memory.dmp	family_latrodectus_1_4
behavioral2/memory/4252-52-0x00000183B3CC0000-0x00000183B3CD6000-memory.dmp	family_latrodectus_1_4
behavioral2/memory/4252-53-0x00000183B3CC0000-0x00000183B3CD6000-memory.dmp	family_latrodectus_1_4
behavioral2/memory/4252-54-0x00000183B3CC0000-0x00000183B3CD6000-memory.dmp	family_latrodectus_1_4

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

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

Drops file in Windows directory 12 IoCs

description	ioc	Process
File created	C:\Windows\Installer\inprogressinstallinfo.ipi	msiexec.exe
File opened for modification	C:\Windows\Installer\e57c2e2.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\MSIC350.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIC517.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIC547.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIC77B.tmp	msiexec.exe
File created	C:\Windows\Installer\e57c2e2.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIC4B8.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\MSIC642.tmp	msiexec.exe

Executes dropped EXE 1 IoCs

pid	Process
4396	MSIC77B.tmp

Loads dropped DLL 6 IoCs

pid	Process
960	MsiExec.exe
960	MsiExec.exe
960	MsiExec.exe
960	MsiExec.exe
2940	rundll32.exe
4252	rundll32.exe

Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs

persistence privilege_escalation

Installer Packages

T1546.016

Msiexec

T1218.007

pid	Process
2776	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	MSIC77B.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 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
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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1288	msiexec.exe
1288	msiexec.exe

Suspicious use of AdjustPrivilegeToken 63 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2776	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2776	msiexec.exe
Token: SeSecurityPrivilege	1288	msiexec.exe
Token: SeCreateTokenPrivilege	2776	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	2776	msiexec.exe
Token: SeLockMemoryPrivilege	2776	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2776	msiexec.exe
Token: SeMachineAccountPrivilege	2776	msiexec.exe
Token: SeTcbPrivilege	2776	msiexec.exe
Token: SeSecurityPrivilege	2776	msiexec.exe
Token: SeTakeOwnershipPrivilege	2776	msiexec.exe
Token: SeLoadDriverPrivilege	2776	msiexec.exe
Token: SeSystemProfilePrivilege	2776	msiexec.exe
Token: SeSystemtimePrivilege	2776	msiexec.exe
Token: SeProfSingleProcessPrivilege	2776	msiexec.exe
Token: SeIncBasePriorityPrivilege	2776	msiexec.exe
Token: SeCreatePagefilePrivilege	2776	msiexec.exe
Token: SeCreatePermanentPrivilege	2776	msiexec.exe
Token: SeBackupPrivilege	2776	msiexec.exe
Token: SeRestorePrivilege	2776	msiexec.exe
Token: SeShutdownPrivilege	2776	msiexec.exe
Token: SeDebugPrivilege	2776	msiexec.exe
Token: SeAuditPrivilege	2776	msiexec.exe
Token: SeSystemEnvironmentPrivilege	2776	msiexec.exe
Token: SeChangeNotifyPrivilege	2776	msiexec.exe
Token: SeRemoteShutdownPrivilege	2776	msiexec.exe
Token: SeUndockPrivilege	2776	msiexec.exe
Token: SeSyncAgentPrivilege	2776	msiexec.exe
Token: SeEnableDelegationPrivilege	2776	msiexec.exe
Token: SeManageVolumePrivilege	2776	msiexec.exe
Token: SeImpersonatePrivilege	2776	msiexec.exe
Token: SeCreateGlobalPrivilege	2776	msiexec.exe
Token: SeBackupPrivilege	536	vssvc.exe
Token: SeRestorePrivilege	536	vssvc.exe
Token: SeAuditPrivilege	536	vssvc.exe
Token: SeBackupPrivilege	1288	msiexec.exe
Token: SeRestorePrivilege	1288	msiexec.exe
Token: SeRestorePrivilege	1288	msiexec.exe
Token: SeTakeOwnershipPrivilege	1288	msiexec.exe
Token: SeRestorePrivilege	1288	msiexec.exe
Token: SeTakeOwnershipPrivilege	1288	msiexec.exe
Token: SeRestorePrivilege	1288	msiexec.exe
Token: SeTakeOwnershipPrivilege	1288	msiexec.exe
Token: SeRestorePrivilege	1288	msiexec.exe
Token: SeTakeOwnershipPrivilege	1288	msiexec.exe
Token: SeRestorePrivilege	1288	msiexec.exe
Token: SeTakeOwnershipPrivilege	1288	msiexec.exe
Token: SeRestorePrivilege	1288	msiexec.exe
Token: SeTakeOwnershipPrivilege	1288	msiexec.exe
Token: SeBackupPrivilege	1524	srtasks.exe
Token: SeRestorePrivilege	1524	srtasks.exe
Token: SeSecurityPrivilege	1524	srtasks.exe
Token: SeTakeOwnershipPrivilege	1524	srtasks.exe
Token: SeRestorePrivilege	1288	msiexec.exe
Token: SeTakeOwnershipPrivilege	1288	msiexec.exe
Token: SeRestorePrivilege	1288	msiexec.exe
Token: SeTakeOwnershipPrivilege	1288	msiexec.exe
Token: SeRestorePrivilege	1288	msiexec.exe
Token: SeTakeOwnershipPrivilege	1288	msiexec.exe
Token: SeBackupPrivilege	1524	srtasks.exe
Token: SeRestorePrivilege	1524	srtasks.exe
Token: SeSecurityPrivilege	1524	srtasks.exe
Token: SeTakeOwnershipPrivilege	1524	srtasks.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2776	msiexec.exe
2776	msiexec.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1288 wrote to memory of 1524	1288	msiexec.exe	99
PID 1288 wrote to memory of 1524	1288	msiexec.exe	99
PID 1288 wrote to memory of 960	1288	msiexec.exe	101
PID 1288 wrote to memory of 960	1288	msiexec.exe	101
PID 1288 wrote to memory of 960	1288	msiexec.exe	101
PID 1288 wrote to memory of 4396	1288	msiexec.exe	102
PID 1288 wrote to memory of 4396	1288	msiexec.exe	102
PID 1288 wrote to memory of 4396	1288	msiexec.exe	102
PID 2940 wrote to memory of 4252	2940	rundll32.exe	104
PID 2940 wrote to memory of 4252	2940	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\f60c7e2cd7078584e1fb2eacd6270c314f1e23f76a4cd78c5d13eec215f0e41c.msi
1⤵
- Enumerates connected drives
- Event Triggered Execution: Installer Packages
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:2776

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:1288
- C:\Windows\system32\srtasks.exe
  C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1524
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding C5620160CE24D9EC007EC9482A0D4FFB
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:960
- C:\Windows\Installer\MSIC77B.tmp
  "C:\Windows\Installer\MSIC77B.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:4396

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
PID:536

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:2940
- C:\Windows\System32\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_2bba8ec5.dll", NvPluginGetInfo
  2⤵
  - Loads dropped DLL
  PID:4252

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

Replay Monitor

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Downloads

C:\Config.Msi\e57c2e5.rbs

Filesize
1KB

MD5
61c1b6c58b961fb27443a0a515befe14

SHA1
85dd05f5cf5d2f9842d1822f1bd950b78a8b2000

SHA256
41cb2f00c1810c89dbf2bf1df95be5ad84a376125180c281193a52f118c05f4a

SHA512
13a0ecae5da8bee3aaf9317c8641eba4e54107733ba3dc19e180641db95c4184be000ef07030f479814e2f20e99806a1e8858debe0f7b34611bbffa8b3243b52

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\MSIC350.tmp

Filesize
436KB

MD5
475d20c0ea477a35660e3f67ecf0a1df

SHA1
67340739f51e1134ae8f0ffc5ae9dd710e8e3a08

SHA256
426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd

SHA512
99525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e

Download Submit
C:\Windows\Installer\MSIC77B.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
5b17815a2002ed8d351b314245b02263

SHA1
d7ed155e7dc6cbf06dcd75aecf1c4ac2cb509785

SHA256
08904ac22820b179284fafa2829faeb5175cda71feb11990d6ef7f565583bd1f

SHA512
cd690b8d6bd5bd9efb1a7f283ca9c8ee5431bf9797c72f37a6af93901f21e779c6909665b869d731c922452695ca69836c2baf1d7913b90a4377dacaa3d43b5f

Download Submit
\??\Volume{f1c94fa5-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{a97baa1b-93ff-405b-a67e-657c0c8fbd98}_OnDiskSnapshotProp

Filesize
6KB

MD5
feb31c9119526665d1293b9a6975faa1

SHA1
8052f0298c83f6164b153f4ec26e8733208f4657

SHA256
cf46058eb7d0eef8075e5bf1145b38b5184e078e97508269bcf13b921e1bdb25

SHA512
593986fbec55be407f1db974ea5b84a9a18d1a84667cf13b528dbef928163076d8003a851631c900082043cf9206be44c74386da03b13b5c345172117bf59654

Download Submit
memory/2940-46-0x00000288E7D30000-0x00000288E7D46000-memory.dmp

Filesize
88KB

Download
memory/2940-48-0x00000288E7D30000-0x00000288E7D46000-memory.dmp

Filesize
88KB

Download
memory/2940-49-0x0000000180000000-0x00000001801DC000-memory.dmp

Filesize
1.9MB

Download
memory/4252-52-0x00000183B3CC0000-0x00000183B3CD6000-memory.dmp

Filesize
88KB

Download
memory/4252-53-0x00000183B3CC0000-0x00000183B3CD6000-memory.dmp

Filesize
88KB

Download
memory/4252-54-0x00000183B3CC0000-0x00000183B3CD6000-memory.dmp

Filesize
88KB

Download