latrodectus | 24746dfb4ac476772d7a1e936b714b9f0df30612395e4d8e7f31a2c43983bc55

Analysis

max time kernel
702s
max time network
1159s
platform
windows11-21h2_x64
resource
win11-20240802-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 4 IoCs

Detects Latrodectus v1.4.

resource	yara_rule
behavioral2/memory/2896-44-0x000001F50C3B0000-0x000001F50C3C6000-memory.dmp	family_latrodectus_1_4
behavioral2/memory/2896-45-0x000001F50C3B0000-0x000001F50C3C6000-memory.dmp	family_latrodectus_1_4
behavioral2/memory/984-50-0x0000020F3D600000-0x0000020F3D616000-memory.dmp	family_latrodectus_1_4
behavioral2/memory/984-51-0x0000020F3D600000-0x0000020F3D616000-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
7	984	rundll32.exe
8	984	rundll32.exe
12	984	rundll32.exe
13	984	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)	\??\P:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\J:	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)	\??\L:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\P:	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)	\??\G:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\R:	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)	\??\R:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe

Drops file in Windows directory 16 IoCs

description	ioc	Process
File created	C:\Windows\Installer\SourceHash{72A77E3B-B705-4CCF-8F7A-0CB540D0E61A}	msiexec.exe
File created	C:\Windows\SystemTemp\~DF908A0DC895B1482F.TMP	msiexec.exe
File created	C:\Windows\Installer\inprogressinstallinfo.ipi	msiexec.exe
File opened for modification	C:\Windows\Installer\MSID2D5.tmp	msiexec.exe
File created	C:\Windows\SystemTemp\~DFCDA9A48A8FD77811.TMP	msiexec.exe
File created	C:\Windows\Installer\e57d040.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\MSID1C8.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSID256.tmp	msiexec.exe
File created	C:\Windows\SystemTemp\~DFBCD2926EA5335357.TMP	msiexec.exe
File opened for modification	C:\Windows\Installer\MSID343.tmp	msiexec.exe
File created	C:\Windows\SystemTemp\~DF48532B3500188874.TMP	msiexec.exe
File opened for modification	C:\Windows\Installer\e57d040.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\MSID09E.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSID285.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\	msiexec.exe

Executes dropped EXE 1 IoCs

pid	Process
2324	MSID343.tmp

Loads dropped DLL 8 IoCs

pid	Process
3788	MsiExec.exe
3788	MsiExec.exe
3788	MsiExec.exe
3788	MsiExec.exe
2896	rundll32.exe
984	rundll32.exe
4416	rundll32.exe
2620	rundll32.exe

Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs

persistence privilege_escalation

Installer Packages

T1546.016

Msiexec

T1218.007

pid	Process
1956	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	MSID343.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\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
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr	vssvc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3684	msiexec.exe
3684	msiexec.exe

Suspicious use of AdjustPrivilegeToken 63 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1956	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1956	msiexec.exe
Token: SeSecurityPrivilege	3684	msiexec.exe
Token: SeCreateTokenPrivilege	1956	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	1956	msiexec.exe
Token: SeLockMemoryPrivilege	1956	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1956	msiexec.exe
Token: SeMachineAccountPrivilege	1956	msiexec.exe
Token: SeTcbPrivilege	1956	msiexec.exe
Token: SeSecurityPrivilege	1956	msiexec.exe
Token: SeTakeOwnershipPrivilege	1956	msiexec.exe
Token: SeLoadDriverPrivilege	1956	msiexec.exe
Token: SeSystemProfilePrivilege	1956	msiexec.exe
Token: SeSystemtimePrivilege	1956	msiexec.exe
Token: SeProfSingleProcessPrivilege	1956	msiexec.exe
Token: SeIncBasePriorityPrivilege	1956	msiexec.exe
Token: SeCreatePagefilePrivilege	1956	msiexec.exe
Token: SeCreatePermanentPrivilege	1956	msiexec.exe
Token: SeBackupPrivilege	1956	msiexec.exe
Token: SeRestorePrivilege	1956	msiexec.exe
Token: SeShutdownPrivilege	1956	msiexec.exe
Token: SeDebugPrivilege	1956	msiexec.exe
Token: SeAuditPrivilege	1956	msiexec.exe
Token: SeSystemEnvironmentPrivilege	1956	msiexec.exe
Token: SeChangeNotifyPrivilege	1956	msiexec.exe
Token: SeRemoteShutdownPrivilege	1956	msiexec.exe
Token: SeUndockPrivilege	1956	msiexec.exe
Token: SeSyncAgentPrivilege	1956	msiexec.exe
Token: SeEnableDelegationPrivilege	1956	msiexec.exe
Token: SeManageVolumePrivilege	1956	msiexec.exe
Token: SeImpersonatePrivilege	1956	msiexec.exe
Token: SeCreateGlobalPrivilege	1956	msiexec.exe
Token: SeBackupPrivilege	1236	vssvc.exe
Token: SeRestorePrivilege	1236	vssvc.exe
Token: SeAuditPrivilege	1236	vssvc.exe
Token: SeBackupPrivilege	3684	msiexec.exe
Token: SeRestorePrivilege	3684	msiexec.exe
Token: SeRestorePrivilege	3684	msiexec.exe
Token: SeTakeOwnershipPrivilege	3684	msiexec.exe
Token: SeRestorePrivilege	3684	msiexec.exe
Token: SeTakeOwnershipPrivilege	3684	msiexec.exe
Token: SeRestorePrivilege	3684	msiexec.exe
Token: SeTakeOwnershipPrivilege	3684	msiexec.exe
Token: SeRestorePrivilege	3684	msiexec.exe
Token: SeTakeOwnershipPrivilege	3684	msiexec.exe
Token: SeRestorePrivilege	3684	msiexec.exe
Token: SeTakeOwnershipPrivilege	3684	msiexec.exe
Token: SeRestorePrivilege	3684	msiexec.exe
Token: SeTakeOwnershipPrivilege	3684	msiexec.exe
Token: SeRestorePrivilege	3684	msiexec.exe
Token: SeTakeOwnershipPrivilege	3684	msiexec.exe
Token: SeRestorePrivilege	3684	msiexec.exe
Token: SeTakeOwnershipPrivilege	3684	msiexec.exe
Token: SeRestorePrivilege	3684	msiexec.exe
Token: SeTakeOwnershipPrivilege	3684	msiexec.exe
Token: SeBackupPrivilege	4212	srtasks.exe
Token: SeRestorePrivilege	4212	srtasks.exe
Token: SeSecurityPrivilege	4212	srtasks.exe
Token: SeTakeOwnershipPrivilege	4212	srtasks.exe
Token: SeBackupPrivilege	4212	srtasks.exe
Token: SeRestorePrivilege	4212	srtasks.exe
Token: SeSecurityPrivilege	4212	srtasks.exe
Token: SeTakeOwnershipPrivilege	4212	srtasks.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1956	msiexec.exe
1956	msiexec.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3684 wrote to memory of 4212	3684	msiexec.exe	87
PID 3684 wrote to memory of 4212	3684	msiexec.exe	87
PID 3684 wrote to memory of 3788	3684	msiexec.exe	89
PID 3684 wrote to memory of 3788	3684	msiexec.exe	89
PID 3684 wrote to memory of 3788	3684	msiexec.exe	89
PID 3684 wrote to memory of 2324	3684	msiexec.exe	90
PID 3684 wrote to memory of 2324	3684	msiexec.exe	90
PID 3684 wrote to memory of 2324	3684	msiexec.exe	90
PID 2896 wrote to memory of 984	2896	rundll32.exe	92
PID 2896 wrote to memory of 984	2896	rundll32.exe	92

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:1956

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:3684
- C:\Windows\system32\srtasks.exe
  C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4212
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding EC14F25F116BBE8741F29F421CD6F2AA
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:3788
- C:\Windows\Installer\MSID343.tmp
  "C:\Windows\Installer\MSID343.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:2324

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
PID:1236

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:2896
- C:\Windows\System32\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_78aa1985.dll", Host
  2⤵
  - Blocklisted process makes network request
  - Loads dropped DLL
  PID:984

C:\Windows\system32\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_78aa1985.dll", Host
1⤵
- Loads dropped DLL
PID:4416

C:\Windows\system32\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_78aa1985.dll", Host
1⤵
- Loads dropped DLL
PID:2620

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\e57d043.rbs

Filesize
1KB

MD5
4f80ca97c79c8663a612ee0ab7613f47

SHA1
7262d61134a0feceea48fe12c93c0d054b52be0c

SHA256
ec6171d2cf0e9e406726152e159c9e66b0c9aab762d751fecc3af62af0447b7c

SHA512
057591797a7f81da00c54a8c54154ee3e4cb895c28ff4aa5071877012e0fe1c88c29ed94848466ee3c2d94a556ee58894fd3e31792fcb49fcd32476333043876

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\MSID09E.tmp

Filesize
436KB

MD5
475d20c0ea477a35660e3f67ecf0a1df

SHA1
67340739f51e1134ae8f0ffc5ae9dd710e8e3a08

SHA256
426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd

SHA512
99525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e

Download Submit
C:\Windows\Installer\MSID343.tmp

Filesize
389KB

MD5
b9545ed17695a32face8c3408a6a3553

SHA1
f6c31c9cd832ae2aebcd88e7b2fa6803ae93fc83

SHA256
1e0e63b446eecf6c9781c7d1cae1f46a3bb31654a70612f71f31538fb4f4729a

SHA512
f6d6dc40dcba5ff091452d7cc257427dcb7ce2a21816b4fec2ee249e63246b64667f5c4095220623533243103876433ef8c12c9b612c0e95fdfffe41d1504e04

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

Filesize
12.8MB

MD5
ee91e69a3375cf44499ed546a3f71418

SHA1
74cc3c56182e34b9efc2dcb8117cbc50e1cf5e91

SHA256
c321ae643fb77e865cc6b509c5f9813f8dac1fb9ee2bf3c804de8471e479f6ef

SHA512
b113a3695e10b465d16ddd67a1facc1c114fabed87c7dba1670889d77806822e2df77418defe3c7de001de84bfa6ac85baef9a4f0ee85f67b5b5c5348eb57496

Download Submit
\??\Volume{2b988a90-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{e6fcd25e-d749-4b04-a572-1f7d97b5d9f9}_OnDiskSnapshotProp

Filesize
6KB

MD5
20982b3f01c8282c2bdbc763c6dc35eb

SHA1
d46bc7f2759a49b5ab7c17f138cca4b3ae7cd908

SHA256
be9b7b1921e7f4add373c7d4e6238cf86a1298be914112718995b86026d429c1

SHA512
33a229c0244d7a58fd1a81e5324dd19a4f718488cab6f056447f17e2a750dbfdea7c8e7873ea7556e88139be03cf1dd94027b9f5653b6f776e90ffdf58a586fe

Download Submit
memory/984-50-0x0000020F3D600000-0x0000020F3D616000-memory.dmp

Filesize
88KB

Download
memory/984-51-0x0000020F3D600000-0x0000020F3D616000-memory.dmp

Filesize
88KB

Download
memory/2896-44-0x000001F50C3B0000-0x000001F50C3C6000-memory.dmp

Filesize
88KB

Download
memory/2896-45-0x000001F50C3B0000-0x000001F50C3C6000-memory.dmp

Filesize
88KB

Download
memory/2896-47-0x0000000180000000-0x0000000180190000-memory.dmp

Filesize
1.6MB

Download