3a950d7e6736f17c3df90844c76d934dc66c17ec76841a4ad58de07af7955f0f

General

Target

08032024_2125_cisa.msi
Size

1.5MB
MD5

c4e8f3e02fd50a4051f11048f1355726
SHA1

c82bf39c9f4797f346447aecc1070fb8c892010f
SHA256

3a950d7e6736f17c3df90844c76d934dc66c17ec76841a4ad58de07af7955f0f
SHA512

e44d8330c4ffdae01614ed5d11c2f112cff9b39bae793242f983d039e1404d371a2697a77fa65b740e43548ab1b203607a6d82b05ff3df741be02bd99a136592
SSDEEP

24576:QjGxLNvYLSMvZCFlp8zBQSc0ZoCvqKwx0ECIgYmfLVYeBZr7A0r7Jh3OnJ3qXIoj:QjivYpW8zBQSc0ZnSKeZKumZr7A+D3O2

Score

6^/10

Malware Config

Signatures

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

Drops file in Windows directory 10 IoCs

Processes:

msiexec.exe

description	ioc	process
File opened for modification	C:\Windows\Installer\e5836bb.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\MSI3747.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\MSI394E.tmp	msiexec.exe
File created	C:\Windows\Installer\e5836bb.msi	msiexec.exe
File created	C:\Windows\Installer\SourceHash{A38F5F69-A209-49ED-8CCE-91613AA34EAF}	msiexec.exe
File opened for modification	C:\Windows\Installer\MSI391E.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSI37F4.tmp	msiexec.exe

Executes dropped EXE 1 IoCs

Processes:

MSI394E.tmp

pid process

4636 MSI394E.tmp

pid	process
4636	MSI394E.tmp

Loads dropped DLL 10 IoCs

Processes:

MsiExec.exeMsiExec.exerundll32.exerundll32.exe

pid	process
4228	MsiExec.exe
4228	MsiExec.exe
4228	MsiExec.exe
4228	MsiExec.exe
4228	MsiExec.exe
4228	MsiExec.exe
4188	MsiExec.exe
4188	MsiExec.exe
3204	rundll32.exe
4360	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

Processes:

vssvc.exe

description	ioc	process
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
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

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

msiexec.exeMSI394E.tmprundll32.exerundll32.exe

pid	process
3512	msiexec.exe
3512	msiexec.exe
4636	MSI394E.tmp
4636	MSI394E.tmp
3204	rundll32.exe
3204	rundll32.exe
3204	rundll32.exe
3204	rundll32.exe
4360	rundll32.exe
4360	rundll32.exe
4360	rundll32.exe
4360	rundll32.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

msiexec.exemsiexec.exe

description	pid	process
Token: SeShutdownPrivilege	2152	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2152	msiexec.exe
Token: SeSecurityPrivilege	3512	msiexec.exe
Token: SeCreateTokenPrivilege	2152	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	2152	msiexec.exe
Token: SeLockMemoryPrivilege	2152	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2152	msiexec.exe
Token: SeMachineAccountPrivilege	2152	msiexec.exe
Token: SeTcbPrivilege	2152	msiexec.exe
Token: SeSecurityPrivilege	2152	msiexec.exe
Token: SeTakeOwnershipPrivilege	2152	msiexec.exe
Token: SeLoadDriverPrivilege	2152	msiexec.exe
Token: SeSystemProfilePrivilege	2152	msiexec.exe
Token: SeSystemtimePrivilege	2152	msiexec.exe
Token: SeProfSingleProcessPrivilege	2152	msiexec.exe
Token: SeIncBasePriorityPrivilege	2152	msiexec.exe
Token: SeCreatePagefilePrivilege	2152	msiexec.exe
Token: SeCreatePermanentPrivilege	2152	msiexec.exe
Token: SeBackupPrivilege	2152	msiexec.exe
Token: SeRestorePrivilege	2152	msiexec.exe
Token: SeShutdownPrivilege	2152	msiexec.exe
Token: SeDebugPrivilege	2152	msiexec.exe
Token: SeAuditPrivilege	2152	msiexec.exe
Token: SeSystemEnvironmentPrivilege	2152	msiexec.exe
Token: SeChangeNotifyPrivilege	2152	msiexec.exe
Token: SeRemoteShutdownPrivilege	2152	msiexec.exe
Token: SeUndockPrivilege	2152	msiexec.exe
Token: SeSyncAgentPrivilege	2152	msiexec.exe
Token: SeEnableDelegationPrivilege	2152	msiexec.exe
Token: SeManageVolumePrivilege	2152	msiexec.exe
Token: SeImpersonatePrivilege	2152	msiexec.exe
Token: SeCreateGlobalPrivilege	2152	msiexec.exe
Token: SeCreateTokenPrivilege	2152	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	2152	msiexec.exe
Token: SeLockMemoryPrivilege	2152	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2152	msiexec.exe
Token: SeMachineAccountPrivilege	2152	msiexec.exe
Token: SeTcbPrivilege	2152	msiexec.exe
Token: SeSecurityPrivilege	2152	msiexec.exe
Token: SeTakeOwnershipPrivilege	2152	msiexec.exe
Token: SeLoadDriverPrivilege	2152	msiexec.exe
Token: SeSystemProfilePrivilege	2152	msiexec.exe
Token: SeSystemtimePrivilege	2152	msiexec.exe
Token: SeProfSingleProcessPrivilege	2152	msiexec.exe
Token: SeIncBasePriorityPrivilege	2152	msiexec.exe
Token: SeCreatePagefilePrivilege	2152	msiexec.exe
Token: SeCreatePermanentPrivilege	2152	msiexec.exe
Token: SeBackupPrivilege	2152	msiexec.exe
Token: SeRestorePrivilege	2152	msiexec.exe
Token: SeShutdownPrivilege	2152	msiexec.exe
Token: SeDebugPrivilege	2152	msiexec.exe
Token: SeAuditPrivilege	2152	msiexec.exe
Token: SeSystemEnvironmentPrivilege	2152	msiexec.exe
Token: SeChangeNotifyPrivilege	2152	msiexec.exe
Token: SeRemoteShutdownPrivilege	2152	msiexec.exe
Token: SeUndockPrivilege	2152	msiexec.exe
Token: SeSyncAgentPrivilege	2152	msiexec.exe
Token: SeEnableDelegationPrivilege	2152	msiexec.exe
Token: SeManageVolumePrivilege	2152	msiexec.exe
Token: SeImpersonatePrivilege	2152	msiexec.exe
Token: SeCreateGlobalPrivilege	2152	msiexec.exe
Token: SeCreateTokenPrivilege	2152	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	2152	msiexec.exe
Token: SeLockMemoryPrivilege	2152	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

msiexec.exe

pid process

2152 msiexec.exe
2152 msiexec.exe

pid	process
2152	msiexec.exe
2152	msiexec.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

msiexec.exerundll32.exe

description	pid	process	target process
PID 3512 wrote to memory of 4228	3512	msiexec.exe	MsiExec.exe
PID 3512 wrote to memory of 4228	3512	msiexec.exe	MsiExec.exe
PID 3512 wrote to memory of 4228	3512	msiexec.exe	MsiExec.exe
PID 3512 wrote to memory of 628	3512	msiexec.exe	srtasks.exe
PID 3512 wrote to memory of 628	3512	msiexec.exe	srtasks.exe
PID 3512 wrote to memory of 4188	3512	msiexec.exe	MsiExec.exe
PID 3512 wrote to memory of 4188	3512	msiexec.exe	MsiExec.exe
PID 3512 wrote to memory of 4188	3512	msiexec.exe	MsiExec.exe
PID 3512 wrote to memory of 4636	3512	msiexec.exe	MSI394E.tmp
PID 3512 wrote to memory of 4636	3512	msiexec.exe	MSI394E.tmp
PID 3512 wrote to memory of 4636	3512	msiexec.exe	MSI394E.tmp
PID 3204 wrote to memory of 4360	3204	rundll32.exe	rundll32.exe
PID 3204 wrote to memory of 4360	3204	rundll32.exe	rundll32.exe

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\08032024_2125_cisa.msi
1⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:2152

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:3512
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding ECECA689C4E16DEB4B8BFE327FB8C2CB C
  2⤵
  - Loads dropped DLL
  PID:4228
- C:\Windows\system32\srtasks.exe
  C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
  2⤵
  PID:628
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding 687AF20894BED0429D04EC8BEF5592A0
  2⤵
  - Loads dropped DLL
  PID:4188
- C:\Windows\Installer\MSI394E.tmp
  "C:\Windows\Installer\MSI394E.tmp" C:\Windows\System32\rundll32.exe C:\Users\Admin\AppData\Local\stat\falcon.dll, vgml
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  PID:4636

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
PID:4160

C:\Windows\System32\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\stat\falcon.dll, vgml
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3204
- C:\Windows\System32\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_481b8caf.dll", vgml
  2⤵
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  PID:4360

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Config.Msi\e5836bc.rbs

Filesize
1KB

MD5
ecce6d898e10a7de146643d66272fa12

SHA1
03b29a7529b9ad5d2fe5c13391902b6171d6b489

SHA256
a9b76aba300f3225df49a241238875a3dfa0e54b4eb21cd2f1f14b786eda5890

SHA512
bdb21ceb4f9f7bb5ec3a713566ee50f1cabe9fce762447c797f70a82329d95308dd6870d22e0e1a9ebf6189b0f777afcd2b5fcc12fa38ae557f0ff55fb61c6db

Download Submit
C:\Users\Admin\AppData\Local\Temp\MSI6273.tmp

Filesize
436KB

MD5
475d20c0ea477a35660e3f67ecf0a1df

SHA1
67340739f51e1134ae8f0ffc5ae9dd710e8e3a08

SHA256
426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd

SHA512
99525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e

Download Submit
C:\Users\Admin\AppData\Local\stat\falcon.dll

Filesize
694KB

MD5
da8ae8e1de522b20a462239c6893613e

SHA1
7f65ef885815d81d220f9f42877ff0d696b0134c

SHA256
aee22a35cbdac3f16c3ed742c0b1bfe9739a13469cf43b36fb2c63565111028c

SHA512
d2dca9ba9272a0bdfa88f7520545e21a1f4d18dcacec36b072369cee8e28ba635a0214b47caef74b6f7fcd06e120d898da997e71c8955c72510972c66d2a855d

Download Submit
C:\Windows\Installer\MSI394E.tmp

Filesize
389KB

MD5
b9545ed17695a32face8c3408a6a3553

SHA1
f6c31c9cd832ae2aebcd88e7b2fa6803ae93fc83

SHA256
1e0e63b446eecf6c9781c7d1cae1f46a3bb31654a70612f71f31538fb4f4729a

SHA512
f6d6dc40dcba5ff091452d7cc257427dcb7ce2a21816b4fec2ee249e63246b64667f5c4095220623533243103876433ef8c12c9b612c0e95fdfffe41d1504e04

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

Filesize
15.1MB

MD5
99734ecd3c984b42999d64b71fc06233

SHA1
fccdda1a4f277f9f2c7ef4ff789ae6932512af8e

SHA256
3c9b5de437b1d8c56c1b5d6099f726bf28a064bce5de82bffbc056be5cdd2389

SHA512
2cab57c371af7f1d8bfdef6485543770b971d637ed7a2f7275cf6deff4df47741a43fcbd0c738ecbdfe11e694031fd8275034ee04662e29ce087cb1c4fd0367d

Download Submit
\??\Volume{ef7552f8-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{117a97da-c97d-448e-8e10-70d0e83defe1}_OnDiskSnapshotProp

Filesize
6KB

MD5
c0cfdcf0f7cedd0a888db556af41c60b

SHA1
a971410c9f4b14dfe1209481beec525f7a921e3f

SHA256
590591dbe05536ebe9ef056d29d83a4f87a9dc8434005c7efd3270cb74fd4777

SHA512
051069e108a1bca8aeb7b722838b4ba876c5d84683420ad849e6e112d151a3c8239ad7bf2b6e11949a3671bdb509c453c5206b111a65c5de04466eca2438175b

Download Submit
memory/3204-47-0x000001F35FC70000-0x000001F35FC84000-memory.dmp

Filesize
80KB

Download
memory/3204-49-0x0000000180000000-0x00000001800B5000-memory.dmp

Filesize
724KB

Download
memory/3204-52-0x000001F35FC70000-0x000001F35FC84000-memory.dmp

Filesize
80KB

Download
memory/4360-64-0x000001E111B60000-0x000001E111B74000-memory.dmp

Filesize
80KB

Download
memory/4360-65-0x000001E111B60000-0x000001E111B74000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads