latrodectus | 4dbb76374e57bb0aeda7f060d7b49fd1c0bba480ab1527dfa0ea009db0383298

Analysis

max time kernel
93s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
submitted
18/09/2024, 01:15

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General

Target

4dbb76374e57bb0aeda7f060d7b49fd1c0bba480ab1527dfa0ea009db0383298.msi
Size

1.5MB
MD5

f1f8dcc624cbbbf64c48207f3ab75587
SHA1

bd32787754b124da7ecfcc3badc8eaa80de5c90b
SHA256

4dbb76374e57bb0aeda7f060d7b49fd1c0bba480ab1527dfa0ea009db0383298
SHA512

5c9892355af5da5389a631ba79df05c39a678d10f0fe9af80c83d4e16681f8e828d22992083dc877117d87434b973a648f308a34797c4e04fd0db93788cafb05
SSDEEP

24576:XD7xLN3Y2MvZCFlp8zBQSc0ZoCvqK9x0ECIgYmfLVYeBZr7A4mK8OdBsCaatxxo:XD73YhW8zBQSc0ZnSKBZKumZr7A3K8YR

Score

10^/10

latrodectus discovery loader persistence privilege_escalation

Malware Config

Extracted

Family

latrodectus

https://indepahote.com/test/

https://pikchestop.com/test/

Signatures

Detects Latrodectus 1 IoCs

Detects Latrodectus v1.4.

resource	yara_rule
behavioral2/memory/2052-64-0x0000019F9B970000-0x0000019F9B986000-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)	\??\H:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\M:	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)	\??\P:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\V:	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\MSI467A.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSI46E8.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\	msiexec.exe
File created	C:\Windows\Installer\SourceHash{62382476-DA56-48A4-AF13-77A93E5AFAD7}	msiexec.exe
File opened for modification	C:\Windows\Installer\MSI4747.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSI4796.tmp	msiexec.exe
File created	C:\Windows\Installer\e58462c.msi	msiexec.exe
File created	C:\Windows\Installer\inprogressinstallinfo.ipi	msiexec.exe
File opened for modification	C:\Windows\Installer\e58462c.msi	msiexec.exe

Executes dropped EXE 1 IoCs

pid	Process
3496	MSI4796.tmp

Loads dropped DLL 10 IoCs

pid	Process
5048	MsiExec.exe
5048	MsiExec.exe
5048	MsiExec.exe
5048	MsiExec.exe
5048	MsiExec.exe
5048	MsiExec.exe
3312	MsiExec.exe
3312	MsiExec.exe
3780	rundll32.exe
2052	rundll32.exe

Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs

persistence privilege_escalation

Installer Packages

T1546.016

Msiexec

T1218.007

pid	Process
3168	msiexec.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	MsiExec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSI4796.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
5124	msiexec.exe
5124	msiexec.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3168	msiexec.exe
Token: SeIncreaseQuotaPrivilege	3168	msiexec.exe
Token: SeSecurityPrivilege	5124	msiexec.exe
Token: SeCreateTokenPrivilege	3168	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	3168	msiexec.exe
Token: SeLockMemoryPrivilege	3168	msiexec.exe
Token: SeIncreaseQuotaPrivilege	3168	msiexec.exe
Token: SeMachineAccountPrivilege	3168	msiexec.exe
Token: SeTcbPrivilege	3168	msiexec.exe
Token: SeSecurityPrivilege	3168	msiexec.exe
Token: SeTakeOwnershipPrivilege	3168	msiexec.exe
Token: SeLoadDriverPrivilege	3168	msiexec.exe
Token: SeSystemProfilePrivilege	3168	msiexec.exe
Token: SeSystemtimePrivilege	3168	msiexec.exe
Token: SeProfSingleProcessPrivilege	3168	msiexec.exe
Token: SeIncBasePriorityPrivilege	3168	msiexec.exe
Token: SeCreatePagefilePrivilege	3168	msiexec.exe
Token: SeCreatePermanentPrivilege	3168	msiexec.exe
Token: SeBackupPrivilege	3168	msiexec.exe
Token: SeRestorePrivilege	3168	msiexec.exe
Token: SeShutdownPrivilege	3168	msiexec.exe
Token: SeDebugPrivilege	3168	msiexec.exe
Token: SeAuditPrivilege	3168	msiexec.exe
Token: SeSystemEnvironmentPrivilege	3168	msiexec.exe
Token: SeChangeNotifyPrivilege	3168	msiexec.exe
Token: SeRemoteShutdownPrivilege	3168	msiexec.exe
Token: SeUndockPrivilege	3168	msiexec.exe
Token: SeSyncAgentPrivilege	3168	msiexec.exe
Token: SeEnableDelegationPrivilege	3168	msiexec.exe
Token: SeManageVolumePrivilege	3168	msiexec.exe
Token: SeImpersonatePrivilege	3168	msiexec.exe
Token: SeCreateGlobalPrivilege	3168	msiexec.exe
Token: SeCreateTokenPrivilege	3168	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	3168	msiexec.exe
Token: SeLockMemoryPrivilege	3168	msiexec.exe
Token: SeIncreaseQuotaPrivilege	3168	msiexec.exe
Token: SeMachineAccountPrivilege	3168	msiexec.exe
Token: SeTcbPrivilege	3168	msiexec.exe
Token: SeSecurityPrivilege	3168	msiexec.exe
Token: SeTakeOwnershipPrivilege	3168	msiexec.exe
Token: SeLoadDriverPrivilege	3168	msiexec.exe
Token: SeSystemProfilePrivilege	3168	msiexec.exe
Token: SeSystemtimePrivilege	3168	msiexec.exe
Token: SeProfSingleProcessPrivilege	3168	msiexec.exe
Token: SeIncBasePriorityPrivilege	3168	msiexec.exe
Token: SeCreatePagefilePrivilege	3168	msiexec.exe
Token: SeCreatePermanentPrivilege	3168	msiexec.exe
Token: SeBackupPrivilege	3168	msiexec.exe
Token: SeRestorePrivilege	3168	msiexec.exe
Token: SeShutdownPrivilege	3168	msiexec.exe
Token: SeDebugPrivilege	3168	msiexec.exe
Token: SeAuditPrivilege	3168	msiexec.exe
Token: SeSystemEnvironmentPrivilege	3168	msiexec.exe
Token: SeChangeNotifyPrivilege	3168	msiexec.exe
Token: SeRemoteShutdownPrivilege	3168	msiexec.exe
Token: SeUndockPrivilege	3168	msiexec.exe
Token: SeSyncAgentPrivilege	3168	msiexec.exe
Token: SeEnableDelegationPrivilege	3168	msiexec.exe
Token: SeManageVolumePrivilege	3168	msiexec.exe
Token: SeImpersonatePrivilege	3168	msiexec.exe
Token: SeCreateGlobalPrivilege	3168	msiexec.exe
Token: SeCreateTokenPrivilege	3168	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	3168	msiexec.exe
Token: SeLockMemoryPrivilege	3168	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3168	msiexec.exe
3168	msiexec.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 5124 wrote to memory of 5048	5124	msiexec.exe	84
PID 5124 wrote to memory of 5048	5124	msiexec.exe	84
PID 5124 wrote to memory of 5048	5124	msiexec.exe	84
PID 5124 wrote to memory of 4216	5124	msiexec.exe	95
PID 5124 wrote to memory of 4216	5124	msiexec.exe	95
PID 5124 wrote to memory of 3312	5124	msiexec.exe	97
PID 5124 wrote to memory of 3312	5124	msiexec.exe	97
PID 5124 wrote to memory of 3312	5124	msiexec.exe	97
PID 5124 wrote to memory of 3496	5124	msiexec.exe	98
PID 5124 wrote to memory of 3496	5124	msiexec.exe	98
PID 5124 wrote to memory of 3496	5124	msiexec.exe	98
PID 3780 wrote to memory of 2052	3780	rundll32.exe	100
PID 3780 wrote to memory of 2052	3780	rundll32.exe	100

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\4dbb76374e57bb0aeda7f060d7b49fd1c0bba480ab1527dfa0ea009db0383298.msi
1⤵
- Enumerates connected drives
- Event Triggered Execution: Installer Packages
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:3168

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:5124
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding 283B2B7529CC437FA5422FF1B1EA23DB C
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:5048
- C:\Windows\system32\srtasks.exe
  C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
  2⤵
  PID:4216
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding A4C12CBAA967567AB762C4361BF2980E
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:3312
- C:\Windows\Installer\MSI4796.tmp
  "C:\Windows\Installer\MSI4796.tmp" /DontWait C:/Windows/System32/rundll32.exe C:\Users\Admin\AppData\Roaming\nvidia.dll, AnselEnableCheck
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3496

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
PID:4700

C:\Windows\System32\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\nvidia.dll, AnselEnableCheck
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3780
- C:\Windows\System32\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_8e7a47d6.dll", AnselEnableCheck
  2⤵
  - Loads dropped DLL
  PID:2052

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\e58462d.rbs

Filesize
1KB

MD5
46adac1a3cae971c9e25aab043bff192

SHA1
d1de3aaf2c8724ee54ef8d27ef3ca39510cb8ef9

SHA256
f93ecccb2e893341c497217a68f3a35e5cdff094bc766e998a16884dab9a3f8b

SHA512
41b4432f154d4dfcabe088bd6af6380da86a340ebbf515d141ae08bcdbacd38e70816ea7185896e305e8ce2c4a5a727e54913d698d8a33c0898dbe232e77b3d5

Download Submit
C:\Users\Admin\AppData\Local\Temp\MSIF3D.tmp

Filesize
436KB

MD5
475d20c0ea477a35660e3f67ecf0a1df

SHA1
67340739f51e1134ae8f0ffc5ae9dd710e8e3a08

SHA256
426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd

SHA512
99525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e

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

Filesize
701KB

MD5
8703a1209bd5be3e9c15eb4e5db332de

SHA1
0e110df37f6315f3a76b12714afcc55323563388

SHA256
1db686635bcdde30163e1e624c4d8f107fd2a20507690151c69cc6a0c482207a

SHA512
2dbd2753264091580055bbbcde0c6de15c3eaa593f1c1eabf0d65cc886298149798dde80259058090b2bbb446dfab27589d90fe3f92411721d90c81c9234b9c4

Download Submit
C:\Windows\Installer\MSI4796.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
d90ea912505772210e4b883417fb1082

SHA1
e089a766ebc7ce5496b5b44fccd84a92188e28c6

SHA256
8d6c6330ebf9e530141ea6870b065e573a8b95b833641cdd274079d2cc5a0886

SHA512
a666350371b5c9c3a879cf760fb6214cd02417da9aeecbb92758a92497fcc27b89280bb3d37893ec5be08662b5ab0b833252c63e7da26717f6cff43c35bf498c

Download Submit
\??\Volume{f930bed6-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{2044f687-f419-4a84-9cfb-f2ed14b7f1e0}_OnDiskSnapshotProp

Filesize
6KB

MD5
1407a3bcfdec415eea1e50254af1ac1f

SHA1
ce9a87a0762865206dacc1336a0a709b7c7770fc

SHA256
f4b57267eaa45ec106e890fe886b37cc5f4a7df26489cc7f910b2722751ea72e

SHA512
cc77918a46536f1068674f618c18a55c60181eb139a20285ca672a029c99145b3814a2c2f5a2bf767aecd77d9edfd201648dfaf2b973f1ec46bb8bf7571b432d

Download Submit
memory/2052-64-0x0000019F9B970000-0x0000019F9B986000-memory.dmp

Filesize
88KB

Download
memory/3780-61-0x0000000180000000-0x00000001800BA000-memory.dmp

Filesize
744KB

Download