latrodectus | 4dbb76374e57bb0aeda7f060d7b49fd1c0bba480ab1527dfa0ea009db0383298

Analysis

max time kernel
94s
max time network
100s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
submitted
17-09-2024 20:02

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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/4800-66-0x000001CF85070000-0x000001CF85086000-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)	\??\B:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\P:	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)	\??\O:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe

Drops file in Windows directory 10 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Installer\MSIA9DC.tmp	msiexec.exe
File created	C:\Windows\Installer\SourceHash{62382476-DA56-48A4-AF13-77A93E5AFAD7}	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\e57a99e.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIAA4B.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\	msiexec.exe
File created	C:\Windows\Installer\inprogressinstallinfo.ipi	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIAAF7.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIAB85.tmp	msiexec.exe
File created	C:\Windows\Installer\e57a99e.msi	msiexec.exe

Executes dropped EXE 1 IoCs

pid	Process
1616	MSIAB85.tmp

Loads dropped DLL 10 IoCs

pid	Process
3240	MsiExec.exe
3240	MsiExec.exe
3240	MsiExec.exe
3240	MsiExec.exe
3240	MsiExec.exe
3240	MsiExec.exe
2844	MsiExec.exe
2844	MsiExec.exe
4708	rundll32.exe
4800	rundll32.exe

Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs

persistence privilege_escalation

Installer Packages

T1546.016

Msiexec

T1218.007

pid	Process
1636	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	MSIAB85.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
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
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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4000	msiexec.exe
4000	msiexec.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1636	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1636	msiexec.exe
Token: SeSecurityPrivilege	4000	msiexec.exe
Token: SeCreateTokenPrivilege	1636	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	1636	msiexec.exe
Token: SeLockMemoryPrivilege	1636	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1636	msiexec.exe
Token: SeMachineAccountPrivilege	1636	msiexec.exe
Token: SeTcbPrivilege	1636	msiexec.exe
Token: SeSecurityPrivilege	1636	msiexec.exe
Token: SeTakeOwnershipPrivilege	1636	msiexec.exe
Token: SeLoadDriverPrivilege	1636	msiexec.exe
Token: SeSystemProfilePrivilege	1636	msiexec.exe
Token: SeSystemtimePrivilege	1636	msiexec.exe
Token: SeProfSingleProcessPrivilege	1636	msiexec.exe
Token: SeIncBasePriorityPrivilege	1636	msiexec.exe
Token: SeCreatePagefilePrivilege	1636	msiexec.exe
Token: SeCreatePermanentPrivilege	1636	msiexec.exe
Token: SeBackupPrivilege	1636	msiexec.exe
Token: SeRestorePrivilege	1636	msiexec.exe
Token: SeShutdownPrivilege	1636	msiexec.exe
Token: SeDebugPrivilege	1636	msiexec.exe
Token: SeAuditPrivilege	1636	msiexec.exe
Token: SeSystemEnvironmentPrivilege	1636	msiexec.exe
Token: SeChangeNotifyPrivilege	1636	msiexec.exe
Token: SeRemoteShutdownPrivilege	1636	msiexec.exe
Token: SeUndockPrivilege	1636	msiexec.exe
Token: SeSyncAgentPrivilege	1636	msiexec.exe
Token: SeEnableDelegationPrivilege	1636	msiexec.exe
Token: SeManageVolumePrivilege	1636	msiexec.exe
Token: SeImpersonatePrivilege	1636	msiexec.exe
Token: SeCreateGlobalPrivilege	1636	msiexec.exe
Token: SeCreateTokenPrivilege	1636	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	1636	msiexec.exe
Token: SeLockMemoryPrivilege	1636	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1636	msiexec.exe
Token: SeMachineAccountPrivilege	1636	msiexec.exe
Token: SeTcbPrivilege	1636	msiexec.exe
Token: SeSecurityPrivilege	1636	msiexec.exe
Token: SeTakeOwnershipPrivilege	1636	msiexec.exe
Token: SeLoadDriverPrivilege	1636	msiexec.exe
Token: SeSystemProfilePrivilege	1636	msiexec.exe
Token: SeSystemtimePrivilege	1636	msiexec.exe
Token: SeProfSingleProcessPrivilege	1636	msiexec.exe
Token: SeIncBasePriorityPrivilege	1636	msiexec.exe
Token: SeCreatePagefilePrivilege	1636	msiexec.exe
Token: SeCreatePermanentPrivilege	1636	msiexec.exe
Token: SeBackupPrivilege	1636	msiexec.exe
Token: SeRestorePrivilege	1636	msiexec.exe
Token: SeShutdownPrivilege	1636	msiexec.exe
Token: SeDebugPrivilege	1636	msiexec.exe
Token: SeAuditPrivilege	1636	msiexec.exe
Token: SeSystemEnvironmentPrivilege	1636	msiexec.exe
Token: SeChangeNotifyPrivilege	1636	msiexec.exe
Token: SeRemoteShutdownPrivilege	1636	msiexec.exe
Token: SeUndockPrivilege	1636	msiexec.exe
Token: SeSyncAgentPrivilege	1636	msiexec.exe
Token: SeEnableDelegationPrivilege	1636	msiexec.exe
Token: SeManageVolumePrivilege	1636	msiexec.exe
Token: SeImpersonatePrivilege	1636	msiexec.exe
Token: SeCreateGlobalPrivilege	1636	msiexec.exe
Token: SeCreateTokenPrivilege	1636	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	1636	msiexec.exe
Token: SeLockMemoryPrivilege	1636	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1636	msiexec.exe
1636	msiexec.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4000 wrote to memory of 3240	4000	msiexec.exe	84
PID 4000 wrote to memory of 3240	4000	msiexec.exe	84
PID 4000 wrote to memory of 3240	4000	msiexec.exe	84
PID 4000 wrote to memory of 4556	4000	msiexec.exe	95
PID 4000 wrote to memory of 4556	4000	msiexec.exe	95
PID 4000 wrote to memory of 2844	4000	msiexec.exe	97
PID 4000 wrote to memory of 2844	4000	msiexec.exe	97
PID 4000 wrote to memory of 2844	4000	msiexec.exe	97
PID 4000 wrote to memory of 1616	4000	msiexec.exe	98
PID 4000 wrote to memory of 1616	4000	msiexec.exe	98
PID 4000 wrote to memory of 1616	4000	msiexec.exe	98
PID 4708 wrote to memory of 4800	4708	rundll32.exe	100
PID 4708 wrote to memory of 4800	4708	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:1636

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:4000
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding C7053EE72A227A13D98E446F8CDB70C2 C
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:3240
- C:\Windows\system32\srtasks.exe
  C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
  2⤵
  PID:4556
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding A26DCB213406AFC261697B55046A9D58
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2844
- C:\Windows\Installer\MSIAB85.tmp
  "C:\Windows\Installer\MSIAB85.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:1616

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
PID:1860

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:4708
- C:\Windows\System32\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_7c5d6f1.dll", AnselEnableCheck
  2⤵
  - Loads dropped DLL
  PID:4800

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\e57a99f.rbs

Filesize
1KB

MD5
ebf14548a556d3944f2798e82250891b

SHA1
7681a9f6cfc5ce261e6a590788677608da728cc0

SHA256
7a3756588bf0f12fc17927d9dc5bb6cb201491c01ee0e618773707555dd0c785

SHA512
59212eb35529fe059ea73c966257a54c3a2903f8c14cce1d5785be54c0f20ae294448fc4f5ff738ae293fa1d4fb07758be46c56e35cb30036f82fd8d1b970fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\MSI73A9.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\MSIAB85.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
b87ab14f8e2909d30caf1cb03c8e1343

SHA1
31d07aa96333cc3ba90973eb7c35cf859078279f

SHA256
f4c085d4ea30cb8eb7ba068895f43fa45f5efb8746936845c7dfca5129812f73

SHA512
3709f14e298ed26bc1692285dd531d107830185c7ec8a6dbb474d007e2c1617244f843f208396aa271be2fbb19fe64223cecd6b8035c9d3f5a98e2f8384dd213

Download Submit
\??\Volume{f3a72b53-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{ec1d07eb-ccc1-4cfd-950a-ad31e5744bb5}_OnDiskSnapshotProp

Filesize
6KB

MD5
04e0c5eff04c9b1313348f9ddcc08ad3

SHA1
f8f65e2c25c247142b77c8012f1d5e3a29c9f59a

SHA256
430f52e8e18c93d4934a00bd4308c16847b95ba2817e9c4a98251849a3610647

SHA512
d554408bf950e5fca1a2cf31da6b0aea34ba0e03fdfcd486c09d688ba92c26297d01dd1d4c6cf16b6aa9ea17601212a7d3df28ac5d39d13cddd28420aaa7d3df

Download Submit
memory/4708-61-0x0000000180000000-0x00000001800BA000-memory.dmp

Filesize
744KB

Download
memory/4800-66-0x000001CF85070000-0x000001CF85086000-memory.dmp

Filesize
88KB

Download