latrodectus | d83d5378f1bb37d1423207ad67f2f984f2d46ba9534194c344a051117c1e541f

Analysis

max time kernel
209s
max time network
211s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
26-03-2024 18:48

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General

Target

upd.msi
Size

1.4MB
MD5

a32536810939d2264c9030b8a1b12186
SHA1

25b92fa53392d8541c2213769fac25b7ecbc88f1
SHA256

d83d5378f1bb37d1423207ad67f2f984f2d46ba9534194c344a051117c1e541f
SHA512

681c2c3299252ee34e447733e6fd6a00133ade44acac9a46cd2f188fd9f6ea767a183ffc0855e7effd39e1ac873405f2d22a7c44e3ce8e39441119d71841029e
SSDEEP

24576:1hFxLNvYLSMvZCFlp8zBQSc0ZoCvqKwx0ECIgYmfLVYeBZr7AJ/MqYzXZ:1h1vYpW8zBQSc0ZnSKeZKumZr7Amqg

Score

10^/10

latrodectus loader

Malware Config

Extracted

Family

latrodectus

https://titnovacrion.top/live/

https://grunzalom.fun/live/

Signatures

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

Detect larodectus Loader variant 2 5 IoCs

loader

resource	yara_rule
behavioral2/memory/2744-47-0x0000020B4CE40000-0x0000020B4CE72000-memory.dmp	family_latrodectus_v2
behavioral2/memory/2744-48-0x0000020B4CE80000-0x0000020B4CE94000-memory.dmp	family_latrodectus_v2
behavioral2/memory/2744-54-0x0000020B4CE80000-0x0000020B4CE94000-memory.dmp	family_latrodectus_v2
behavioral2/memory/4532-66-0x00000181651D0000-0x00000181651E4000-memory.dmp	family_latrodectus_v2
behavioral2/memory/4532-67-0x00000181651D0000-0x00000181651E4000-memory.dmp	family_latrodectus_v2

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

Drops file in Windows directory 10 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Installer\MSI7206.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\e57704e.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\MSI708C.tmp	msiexec.exe
File created	C:\Windows\Installer\inprogressinstallinfo.ipi	msiexec.exe
File created	C:\Windows\Installer\SourceHash{EDB05111-9E1F-4247-A9B5-3D72B974D151}	msiexec.exe
File opened for modification	C:\Windows\Installer\MSI71A8.tmp	msiexec.exe
File created	C:\Windows\Installer\e57704e.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\MSI70FB.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\	msiexec.exe

Executes dropped EXE 1 IoCs

pid	Process
3816	MSI7206.tmp

Loads dropped DLL 10 IoCs

pid	Process
2340	MsiExec.exe
2340	MsiExec.exe
2340	MsiExec.exe
2340	MsiExec.exe
2340	MsiExec.exe
2340	MsiExec.exe
4336	MsiExec.exe
4336	MsiExec.exe
2744	rundll32.exe
4532	rundll32.exe

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_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters\Partmgr\SnapshotDataCache = 534e41505041525401000000700000008ec7416a0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	vssvc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters	vssvc.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters\Partmgr	vssvc.exe
Set value (data)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters\Partmgr\PartitionTableCache = 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	vssvc.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
116	msiexec.exe
116	msiexec.exe
3816	MSI7206.tmp
3816	MSI7206.tmp
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
2744	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4208	msiexec.exe
Token: SeIncreaseQuotaPrivilege	4208	msiexec.exe
Token: SeSecurityPrivilege	116	msiexec.exe
Token: SeCreateTokenPrivilege	4208	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	4208	msiexec.exe
Token: SeLockMemoryPrivilege	4208	msiexec.exe
Token: SeIncreaseQuotaPrivilege	4208	msiexec.exe
Token: SeMachineAccountPrivilege	4208	msiexec.exe
Token: SeTcbPrivilege	4208	msiexec.exe
Token: SeSecurityPrivilege	4208	msiexec.exe
Token: SeTakeOwnershipPrivilege	4208	msiexec.exe
Token: SeLoadDriverPrivilege	4208	msiexec.exe
Token: SeSystemProfilePrivilege	4208	msiexec.exe
Token: SeSystemtimePrivilege	4208	msiexec.exe
Token: SeProfSingleProcessPrivilege	4208	msiexec.exe
Token: SeIncBasePriorityPrivilege	4208	msiexec.exe
Token: SeCreatePagefilePrivilege	4208	msiexec.exe
Token: SeCreatePermanentPrivilege	4208	msiexec.exe
Token: SeBackupPrivilege	4208	msiexec.exe
Token: SeRestorePrivilege	4208	msiexec.exe
Token: SeShutdownPrivilege	4208	msiexec.exe
Token: SeDebugPrivilege	4208	msiexec.exe
Token: SeAuditPrivilege	4208	msiexec.exe
Token: SeSystemEnvironmentPrivilege	4208	msiexec.exe
Token: SeChangeNotifyPrivilege	4208	msiexec.exe
Token: SeRemoteShutdownPrivilege	4208	msiexec.exe
Token: SeUndockPrivilege	4208	msiexec.exe
Token: SeSyncAgentPrivilege	4208	msiexec.exe
Token: SeEnableDelegationPrivilege	4208	msiexec.exe
Token: SeManageVolumePrivilege	4208	msiexec.exe
Token: SeImpersonatePrivilege	4208	msiexec.exe
Token: SeCreateGlobalPrivilege	4208	msiexec.exe
Token: SeCreateTokenPrivilege	4208	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	4208	msiexec.exe
Token: SeLockMemoryPrivilege	4208	msiexec.exe
Token: SeIncreaseQuotaPrivilege	4208	msiexec.exe
Token: SeMachineAccountPrivilege	4208	msiexec.exe
Token: SeTcbPrivilege	4208	msiexec.exe
Token: SeSecurityPrivilege	4208	msiexec.exe
Token: SeTakeOwnershipPrivilege	4208	msiexec.exe
Token: SeLoadDriverPrivilege	4208	msiexec.exe
Token: SeSystemProfilePrivilege	4208	msiexec.exe
Token: SeSystemtimePrivilege	4208	msiexec.exe
Token: SeProfSingleProcessPrivilege	4208	msiexec.exe
Token: SeIncBasePriorityPrivilege	4208	msiexec.exe
Token: SeCreatePagefilePrivilege	4208	msiexec.exe
Token: SeCreatePermanentPrivilege	4208	msiexec.exe
Token: SeBackupPrivilege	4208	msiexec.exe
Token: SeRestorePrivilege	4208	msiexec.exe
Token: SeShutdownPrivilege	4208	msiexec.exe
Token: SeDebugPrivilege	4208	msiexec.exe
Token: SeAuditPrivilege	4208	msiexec.exe
Token: SeSystemEnvironmentPrivilege	4208	msiexec.exe
Token: SeChangeNotifyPrivilege	4208	msiexec.exe
Token: SeRemoteShutdownPrivilege	4208	msiexec.exe
Token: SeUndockPrivilege	4208	msiexec.exe
Token: SeSyncAgentPrivilege	4208	msiexec.exe
Token: SeEnableDelegationPrivilege	4208	msiexec.exe
Token: SeManageVolumePrivilege	4208	msiexec.exe
Token: SeImpersonatePrivilege	4208	msiexec.exe
Token: SeCreateGlobalPrivilege	4208	msiexec.exe
Token: SeCreateTokenPrivilege	4208	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	4208	msiexec.exe
Token: SeLockMemoryPrivilege	4208	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4208	msiexec.exe
4208	msiexec.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 116 wrote to memory of 2340	116	msiexec.exe	91
PID 116 wrote to memory of 2340	116	msiexec.exe	91
PID 116 wrote to memory of 2340	116	msiexec.exe	91
PID 116 wrote to memory of 5000	116	msiexec.exe	100
PID 116 wrote to memory of 5000	116	msiexec.exe	100
PID 116 wrote to memory of 4336	116	msiexec.exe	102
PID 116 wrote to memory of 4336	116	msiexec.exe	102
PID 116 wrote to memory of 4336	116	msiexec.exe	102
PID 116 wrote to memory of 3816	116	msiexec.exe	103
PID 116 wrote to memory of 3816	116	msiexec.exe	103
PID 116 wrote to memory of 3816	116	msiexec.exe	103
PID 2744 wrote to memory of 4532	2744	rundll32.exe	107
PID 2744 wrote to memory of 4532	2744	rundll32.exe	107

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\upd.msi
1⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:4208

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:116
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding 937357759A48C2D63FC620E1B54303E9 C
  2⤵
  - Loads dropped DLL
  PID:2340
- C:\Windows\system32\srtasks.exe
  C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
  2⤵
  PID:5000
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding ABD04FEA5B4257CB5E0994CF3CD9D57A
  2⤵
  - Loads dropped DLL
  PID:4336
- C:\Windows\Installer\MSI7206.tmp
  "C:\Windows\Installer\MSI7206.tmp" C:\Windows\System32\rundll32.exe C:\Users\Admin\AppData\Local\besr\cr2.dll, vgml
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  PID:3816

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
PID:3196

C:\Windows\System32\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\besr\cr2.dll, vgml
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2744
- C:\Windows\System32\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_6c185f1f.dll", vgml
  2⤵
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  PID:4532

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Config.Msi\e57704f.rbs

Filesize
1KB

MD5
29a34d153eca5aed4c76f8118fc42868

SHA1
e399e572ae303448d408e515c4adc8791cf5165d

SHA256
3080ebe52f84d5de16ad9db8c7b78af978f40093cb840a57f7c13e9dfb2c05cd

SHA512
f9848f27cbb415199474c99e4a14ab79d080545d6f3a18821a36c807804c17d2fd9e7cfc5e92e0ec31ffaf15b82b1b963c1542fab06effdf23e527ddc27b6864

Download Submit
C:\Users\Admin\AppData\Local\Temp\MSI417D.tmp

Filesize
436KB

MD5
475d20c0ea477a35660e3f67ecf0a1df

SHA1
67340739f51e1134ae8f0ffc5ae9dd710e8e3a08

SHA256
426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd

SHA512
99525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e

Download Submit
C:\Users\Admin\AppData\Local\besr\cr2.dll

Filesize
277KB

MD5
f9425561701935d358f4f5b7fc2e5502

SHA1
f00b5a6bbd7f500c439bfa4e4dedc79850732597

SHA256
71fb25cc4c05ce9dd94614ed781d85a50dccf69042521abc6782d48df85e6de9

SHA512
8faa2b11ca95eed4b7d5aa7dcc36669d929e7d2c503714d7d220c660e9dad8aa92697f57080fa7589875fe36e3fa9b507e96970d9647373c82969c7972774bcb

Download Submit
C:\Windows\Installer\MSI7206.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
392bfd08dd4077328d43980c2b8c9a8f

SHA1
1af21a8154de0ae3e96d1db147be96aeb8c230d6

SHA256
516ae26c6f00d3e3a7a51b1aa309262a5e11939b0f82455e00288f41e96cda78

SHA512
25f259f985d22f0b7778734ee1bcf2b26cc77468f5654eb27ca904b934b20e9aae33e2896c849f54b57e3c56d4f1e1b680993076a25c6c83e1454295ffd2c265

Download Submit
\??\Volume{f429969b-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{67bf1851-c6b1-41eb-ac3d-47402388b0c9}_OnDiskSnapshotProp

Filesize
6KB

MD5
0f23ffb880b6c13902171c6d88efac2b

SHA1
6b6eee8c4ec55f808b6093bc2cbbf4137b72bac3

SHA256
02b7515333ed8eb38af84a6e9ddfdf7b82d6b32ddd40e692d894bd3c7804d5f1

SHA512
66e43b9dc1cb0c04e8181a9e3c5c1cb25d2854a4dd92f4054c096f790e7425872b7d65a9d4e13df2838ca836c115243d594b1e189b47db61852ed7fa22bbc52c

Download Submit
memory/2744-53-0x0000020B4CE40000-0x0000020B4CE72000-memory.dmp

Filesize
200KB

Download
memory/2744-54-0x0000020B4CE80000-0x0000020B4CE94000-memory.dmp

Filesize
80KB

Download
memory/2744-50-0x00007FFC5C7D0000-0x00007FFC5C81C000-memory.dmp

Filesize
304KB

Download
memory/2744-48-0x0000020B4CE80000-0x0000020B4CE94000-memory.dmp

Filesize
80KB

Download
memory/2744-47-0x0000020B4CE40000-0x0000020B4CE72000-memory.dmp

Filesize
200KB

Download
memory/4532-66-0x00000181651D0000-0x00000181651E4000-memory.dmp

Filesize
80KB

Download
memory/4532-67-0x00000181651D0000-0x00000181651E4000-memory.dmp

Filesize
80KB

Download