latrodectus | f60c7e2cd7078584e1fb2eacd6270c314f1e23f76a4cd78c5d13eec215f0e41c

Analysis

max time kernel
92s
max time network
93s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
13-09-2024 01:54

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General

Target

f60c7e2cd7078584e1fb2eacd6270c314f1e23f76a4cd78c5d13eec215f0e41c.msi
Size

1.9MB
MD5

c017277279dada1b9653bc6838019952
SHA1

4d66580dade368ea823c2afc602ad3686c20d4d1
SHA256

f60c7e2cd7078584e1fb2eacd6270c314f1e23f76a4cd78c5d13eec215f0e41c
SHA512

cd9fea4bfa73987fb95e4e15ee6fa5c489842b79f8a497ea7dd65ec355db9df6d4af786612e6d9f43e7293723a91841465368728fb1b5361716a9297008adfa2
SSDEEP

49152:QGN3YhW8zBQSc0ZnSKBZKumZr7ANpTdzZfVSlaMBOno:3YY0Zn3K/ANPzbSlaBno

Score

10^/10

latrodectus discovery loader persistence privilege_escalation

Malware Config

Signatures

Detects Latrodectus 4 IoCs

Detects Latrodectus v1.4.

Processes:

resource	yara_rule
behavioral2/memory/1000-44-0x0000025DDC5A0000-0x0000025DDC5B6000-memory.dmp	family_latrodectus_1_4
behavioral2/memory/1000-46-0x0000025DDC5A0000-0x0000025DDC5B6000-memory.dmp	family_latrodectus_1_4
behavioral2/memory/2232-51-0x0000019691A50000-0x0000019691A66000-memory.dmp	family_latrodectus_1_4
behavioral2/memory/2232-50-0x0000019691A50000-0x0000019691A66000-memory.dmp	family_latrodectus_1_4

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

Processes:

msiexec.exemsiexec.exe

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

Drops file in Windows directory 12 IoCs

Processes:

msiexec.exe

description	ioc	Process
File created	C:\Windows\Installer\e57b517.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\e57b517.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\MSIB565.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\MSIB887.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIB69F.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIB70D.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIB76C.tmp	msiexec.exe
File created	C:\Windows\Installer\SourceHash{72A77E3B-B705-4CCF-8F7A-0CB540D0E61A}	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIB7DA.tmp	msiexec.exe

Executes dropped EXE 1 IoCs

Processes:

MSIB887.tmp

pid	Process
4444	MSIB887.tmp

Loads dropped DLL 6 IoCs

Processes:

MsiExec.exerundll32.exerundll32.exe

pid	Process
4276	MsiExec.exe
4276	MsiExec.exe
4276	MsiExec.exe
4276	MsiExec.exe
1000	rundll32.exe
2232	rundll32.exe

Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs

persistence privilege_escalation

Installer Packages

T1546.016

Msiexec

T1218.007

Processes:

msiexec.exe

pid	Process
2400	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

Processes:

MsiExec.exeMSIB887.tmp

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MsiExec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSIB887.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

Processes:

vssvc.exe

description	ioc	Process
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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters	vssvc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

msiexec.exe

pid	Process
4832	msiexec.exe
4832	msiexec.exe

Suspicious use of AdjustPrivilegeToken 63 IoCs

Processes:

msiexec.exemsiexec.exevssvc.exesrtasks.exe

description	pid	Process
Token: SeShutdownPrivilege	2400	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2400	msiexec.exe
Token: SeSecurityPrivilege	4832	msiexec.exe
Token: SeCreateTokenPrivilege	2400	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	2400	msiexec.exe
Token: SeLockMemoryPrivilege	2400	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2400	msiexec.exe
Token: SeMachineAccountPrivilege	2400	msiexec.exe
Token: SeTcbPrivilege	2400	msiexec.exe
Token: SeSecurityPrivilege	2400	msiexec.exe
Token: SeTakeOwnershipPrivilege	2400	msiexec.exe
Token: SeLoadDriverPrivilege	2400	msiexec.exe
Token: SeSystemProfilePrivilege	2400	msiexec.exe
Token: SeSystemtimePrivilege	2400	msiexec.exe
Token: SeProfSingleProcessPrivilege	2400	msiexec.exe
Token: SeIncBasePriorityPrivilege	2400	msiexec.exe
Token: SeCreatePagefilePrivilege	2400	msiexec.exe
Token: SeCreatePermanentPrivilege	2400	msiexec.exe
Token: SeBackupPrivilege	2400	msiexec.exe
Token: SeRestorePrivilege	2400	msiexec.exe
Token: SeShutdownPrivilege	2400	msiexec.exe
Token: SeDebugPrivilege	2400	msiexec.exe
Token: SeAuditPrivilege	2400	msiexec.exe
Token: SeSystemEnvironmentPrivilege	2400	msiexec.exe
Token: SeChangeNotifyPrivilege	2400	msiexec.exe
Token: SeRemoteShutdownPrivilege	2400	msiexec.exe
Token: SeUndockPrivilege	2400	msiexec.exe
Token: SeSyncAgentPrivilege	2400	msiexec.exe
Token: SeEnableDelegationPrivilege	2400	msiexec.exe
Token: SeManageVolumePrivilege	2400	msiexec.exe
Token: SeImpersonatePrivilege	2400	msiexec.exe
Token: SeCreateGlobalPrivilege	2400	msiexec.exe
Token: SeBackupPrivilege	452	vssvc.exe
Token: SeRestorePrivilege	452	vssvc.exe
Token: SeAuditPrivilege	452	vssvc.exe
Token: SeBackupPrivilege	4832	msiexec.exe
Token: SeRestorePrivilege	4832	msiexec.exe
Token: SeRestorePrivilege	4832	msiexec.exe
Token: SeTakeOwnershipPrivilege	4832	msiexec.exe
Token: SeRestorePrivilege	4832	msiexec.exe
Token: SeTakeOwnershipPrivilege	4832	msiexec.exe
Token: SeRestorePrivilege	4832	msiexec.exe
Token: SeTakeOwnershipPrivilege	4832	msiexec.exe
Token: SeRestorePrivilege	4832	msiexec.exe
Token: SeTakeOwnershipPrivilege	4832	msiexec.exe
Token: SeRestorePrivilege	4832	msiexec.exe
Token: SeTakeOwnershipPrivilege	4832	msiexec.exe
Token: SeRestorePrivilege	4832	msiexec.exe
Token: SeTakeOwnershipPrivilege	4832	msiexec.exe
Token: SeRestorePrivilege	4832	msiexec.exe
Token: SeTakeOwnershipPrivilege	4832	msiexec.exe
Token: SeRestorePrivilege	4832	msiexec.exe
Token: SeTakeOwnershipPrivilege	4832	msiexec.exe
Token: SeRestorePrivilege	4832	msiexec.exe
Token: SeTakeOwnershipPrivilege	4832	msiexec.exe
Token: SeBackupPrivilege	4908	srtasks.exe
Token: SeRestorePrivilege	4908	srtasks.exe
Token: SeSecurityPrivilege	4908	srtasks.exe
Token: SeTakeOwnershipPrivilege	4908	srtasks.exe
Token: SeBackupPrivilege	4908	srtasks.exe
Token: SeRestorePrivilege	4908	srtasks.exe
Token: SeSecurityPrivilege	4908	srtasks.exe
Token: SeTakeOwnershipPrivilege	4908	srtasks.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

msiexec.exe

pid	Process
2400	msiexec.exe
2400	msiexec.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

msiexec.exerundll32.exe

description	pid	Process	procid_target
PID 4832 wrote to memory of 4908	4832	msiexec.exe	97
PID 4832 wrote to memory of 4908	4832	msiexec.exe	97
PID 4832 wrote to memory of 4276	4832	msiexec.exe	99
PID 4832 wrote to memory of 4276	4832	msiexec.exe	99
PID 4832 wrote to memory of 4276	4832	msiexec.exe	99
PID 4832 wrote to memory of 4444	4832	msiexec.exe	100
PID 4832 wrote to memory of 4444	4832	msiexec.exe	100
PID 4832 wrote to memory of 4444	4832	msiexec.exe	100
PID 1000 wrote to memory of 2232	1000	rundll32.exe	102
PID 1000 wrote to memory of 2232	1000	rundll32.exe	102

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:2400

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:4832
- C:\Windows\system32\srtasks.exe
  C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4908
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding F051229C449F2E629AF3EAF8B623BD97
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:4276
- C:\Windows\Installer\MSIB887.tmp
  "C:\Windows\Installer\MSIB887.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:4444

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
PID:452

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:1000
- C:\Windows\System32\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_7c5d6f1.dll", NvPluginGetInfo
  2⤵
  - Loads dropped DLL
  PID:2232

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\e57b51a.rbs

Filesize
1KB

MD5
fcf149fc0222716a70ce8e5853cfae58

SHA1
6f7fbc673b166296982dad7ae6f4b7977a3266f0

SHA256
d612514362c022e10539f13b8ad0e5b4383fe074c886312473164802758f85ba

SHA512
4ab41a76a703c31549393ed11e8d41a04a311b497770c0b764178e860debd9a15968f6011a2f8a6072b7fd579e5e9bd383ef5f9640db1a2a2b80c639d34948f9

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\MSIB565.tmp

Filesize
436KB

MD5
475d20c0ea477a35660e3f67ecf0a1df

SHA1
67340739f51e1134ae8f0ffc5ae9dd710e8e3a08

SHA256
426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd

SHA512
99525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e

Download Submit
C:\Windows\Installer\MSIB887.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
c950d8f45c420a2beab4c8a11db90862

SHA1
18ce1d63508567ea07a048e3d26b45d897091f2c

SHA256
1b1529ccc6b45f3f22234adec79527014eea17e1a4c5767370dc1157625b4dfd

SHA512
22a1d5a51b2ef289cc3ce59b48fe1d4fb1370b92793fc1a8c2dba32570fe4ce767437a1c2eacf7f1d5a577e2c4c153e7987d13319802cd2a4a3b16694a1b5757

Download Submit
\??\Volume{f3a72b53-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{83fdefc2-28cb-4f71-917e-6e1798cc3d4d}_OnDiskSnapshotProp

Filesize
6KB

MD5
bb86697134d248fb92c5e3e917161a36

SHA1
5d3c5f729de0954846857bd89effc76d58d79b07

SHA256
1432d85856a72172ff7ddce3d46fc50747a600146bc3e83c4fd3efca0d75190d

SHA512
872e904c7e5863fd7cac353dc31d9bafca43aa36a79822c3fab8a08f1622a93c7d4f0e677c0ca4d96d8082e0daa793efeb42e079d39be34ed7985c28ea0812f7

Download Submit
memory/1000-44-0x0000025DDC5A0000-0x0000025DDC5B6000-memory.dmp

Filesize
88KB

Download
memory/1000-46-0x0000025DDC5A0000-0x0000025DDC5B6000-memory.dmp

Filesize
88KB

Download
memory/1000-47-0x0000000180000000-0x00000001801DC000-memory.dmp

Filesize
1.9MB

Download
memory/2232-51-0x0000019691A50000-0x0000019691A66000-memory.dmp

Filesize
88KB

Download
memory/2232-50-0x0000019691A50000-0x0000019691A66000-memory.dmp

Filesize
88KB

Download