7998cca7210729d57d154d5aa5045d8929759766799e8791b38a77867a375282

General

Target

_.msi
Size

11.4MB
MD5

1fa69ec9be99a31ec668e03e71f3956b
SHA1

2d35b6bf792b8a651c62c159ca90f3080d38240c
SHA256

78fcc7d75a5886b74c02f41ff4a6cc9f0d6d29ce0d4c0242d11e626363c0c7dc
SHA512

ae3af1b1db199c88531e6a4be16dce386a890176b13692a3cf6778ece49ebf04a43f5d9c8448d8680ad176bcb2615bf247d26637118fce535a8c218bf0349c2a

Score

8^/10

persistence ransomware

Malware Config

Signatures

Blocklisted process makes network request 2 IoCs

Processes:

msiexec.exemsiexec.exe

flow pid process

2 1096 msiexec.exe
5 1188 msiexec.exe

flow	pid	process
2	1096	msiexec.exe
5	1188	msiexec.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

msiexec.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\Imo Messenger = "\"C:\\Users\\Admin\\AppData\\Roaming\\Imo Messenger\\ImoDesktopApp.exe\" -minimized"	msiexec.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe

Enumerates connected drives 3 TTPs 48 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)	\??\N:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\U:	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)	\??\Y:	msiexec.exe
File opened (read-only)	\??\F:	msiexec.exe
File opened (read-only)	\??\X:	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)	\??\T:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\F:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
ransomware

System Information Discovery
T1082

Drops file in Windows directory 10 IoCs

Processes:

msiexec.exeDrvInst.exe

description	ioc	process
File opened for modification	C:\Windows\Installer\	msiexec.exe
File opened for modification	C:\Windows\Installer\MSI10BB.tmp	msiexec.exe
File opened for modification	C:\Windows\INF\setupapi.ev3	DrvInst.exe
File opened for modification	C:\Windows\INF\setupapi.dev.log	DrvInst.exe
File created	C:\Windows\Installer\f750c02.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\f750c02.msi	msiexec.exe
File opened for modification	C:\Windows\INF\setupapi.ev1	DrvInst.exe
File created	C:\Windows\Installer\f750c03.ipi	msiexec.exe
File created	C:\Windows\Installer\f750c05.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\f750c03.ipi	msiexec.exe

Modifies data under HKEY_USERS 44 IoCs

Processes:

DrvInst.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\CRLs	DrvInst.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\@%SystemRoot%\system32\WindowsPowerShell\v1.0\powershell.exe,-124 = "Document Encryption"	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\My	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\CTLs	DrvInst.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\CTLs	DrvInst.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

msiexec.exe

pid process

1188 msiexec.exe
1188 msiexec.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

msiexec.exe

pid process

1096 msiexec.exe

pid	process
1188	msiexec.exe
1188	msiexec.exe

pid	process
1096	msiexec.exe

Suspicious use of AdjustPrivilegeToken 87 IoCs

Processes:

msiexec.exemsiexec.exevssvc.exeDrvInst.exe

description	pid	process
Token: SeShutdownPrivilege	1096	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1096	msiexec.exe
Token: SeRestorePrivilege	1188	msiexec.exe
Token: SeTakeOwnershipPrivilege	1188	msiexec.exe
Token: SeSecurityPrivilege	1188	msiexec.exe
Token: SeCreateTokenPrivilege	1096	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	1096	msiexec.exe
Token: SeLockMemoryPrivilege	1096	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1096	msiexec.exe
Token: SeMachineAccountPrivilege	1096	msiexec.exe
Token: SeTcbPrivilege	1096	msiexec.exe
Token: SeSecurityPrivilege	1096	msiexec.exe
Token: SeTakeOwnershipPrivilege	1096	msiexec.exe
Token: SeLoadDriverPrivilege	1096	msiexec.exe
Token: SeSystemProfilePrivilege	1096	msiexec.exe
Token: SeSystemtimePrivilege	1096	msiexec.exe
Token: SeProfSingleProcessPrivilege	1096	msiexec.exe
Token: SeIncBasePriorityPrivilege	1096	msiexec.exe
Token: SeCreatePagefilePrivilege	1096	msiexec.exe
Token: SeCreatePermanentPrivilege	1096	msiexec.exe
Token: SeBackupPrivilege	1096	msiexec.exe
Token: SeRestorePrivilege	1096	msiexec.exe
Token: SeShutdownPrivilege	1096	msiexec.exe
Token: SeDebugPrivilege	1096	msiexec.exe
Token: SeAuditPrivilege	1096	msiexec.exe
Token: SeSystemEnvironmentPrivilege	1096	msiexec.exe
Token: SeChangeNotifyPrivilege	1096	msiexec.exe
Token: SeRemoteShutdownPrivilege	1096	msiexec.exe
Token: SeUndockPrivilege	1096	msiexec.exe
Token: SeSyncAgentPrivilege	1096	msiexec.exe
Token: SeEnableDelegationPrivilege	1096	msiexec.exe
Token: SeManageVolumePrivilege	1096	msiexec.exe
Token: SeImpersonatePrivilege	1096	msiexec.exe
Token: SeCreateGlobalPrivilege	1096	msiexec.exe
Token: SeBackupPrivilege	364	vssvc.exe
Token: SeRestorePrivilege	364	vssvc.exe
Token: SeAuditPrivilege	364	vssvc.exe
Token: SeBackupPrivilege	1188	msiexec.exe
Token: SeRestorePrivilege	1188	msiexec.exe
Token: SeRestorePrivilege	1624	DrvInst.exe
Token: SeRestorePrivilege	1624	DrvInst.exe
Token: SeRestorePrivilege	1624	DrvInst.exe
Token: SeRestorePrivilege	1624	DrvInst.exe
Token: SeRestorePrivilege	1624	DrvInst.exe
Token: SeRestorePrivilege	1624	DrvInst.exe
Token: SeRestorePrivilege	1624	DrvInst.exe
Token: SeLoadDriverPrivilege	1624	DrvInst.exe
Token: SeLoadDriverPrivilege	1624	DrvInst.exe
Token: SeLoadDriverPrivilege	1624	DrvInst.exe
Token: SeRestorePrivilege	1188	msiexec.exe
Token: SeTakeOwnershipPrivilege	1188	msiexec.exe
Token: SeRestorePrivilege	1188	msiexec.exe
Token: SeTakeOwnershipPrivilege	1188	msiexec.exe
Token: SeRestorePrivilege	1188	msiexec.exe
Token: SeTakeOwnershipPrivilege	1188	msiexec.exe
Token: SeRestorePrivilege	1188	msiexec.exe
Token: SeTakeOwnershipPrivilege	1188	msiexec.exe
Token: SeRestorePrivilege	1188	msiexec.exe
Token: SeTakeOwnershipPrivilege	1188	msiexec.exe
Token: SeRestorePrivilege	1188	msiexec.exe
Token: SeTakeOwnershipPrivilege	1188	msiexec.exe
Token: SeRestorePrivilege	1188	msiexec.exe
Token: SeTakeOwnershipPrivilege	1188	msiexec.exe
Token: SeRestorePrivilege	1188	msiexec.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

msiexec.exe

pid process

1096 msiexec.exe

pid	process
1096	msiexec.exe

C:\Windows\system32\msiexec.exe
msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\_.msi
1⤵
- Blocklisted process makes network request
- Enumerates connected drives
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1096

C:\Windows\system32\msiexec.exe
C:\Windows\system32\msiexec.exe /V
1⤵
- Blocklisted process makes network request
- Adds Run key to start application
- Enumerates connected drives
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1188

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:364

C:\Windows\system32\DrvInst.exe
DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot12" "" "" "6d110b0a3" "0000000000000000" "00000000000003BC" "00000000000004CC"
1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:1624

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
MD5
8367ccf35a3de86edc2eec55cae9360a

SHA1
67d83de902078d7037cf3cc53fdc243580c45ee4

SHA256
ef80411ad497a72453e1138e35dbd12654b2367e2a8ff658c83ab3c993fb3e7d

SHA512
636ed7ab28e0aa75f7ba2ee8389e5a7369d78d4b5b162ae34d5c9fc1d8d3a8677a17a848e78e7a7297325101cb7fedca5e8d47f114d6ab209e247edc361d5900

Download Submit
memory/1096-2-0x000007FEFBBB1000-0x000007FEFBBB3000-memory.dmp

Filesize
8KB

Download
memory/1096-3-0x00000000031C0000-0x00000000031C4000-memory.dmp

Filesize
16KB

Download
memory/1096-6-0x0000000004150000-0x0000000004154000-memory.dmp

Filesize
16KB

Download
memory/1096-9-0x0000000004150000-0x0000000004154000-memory.dmp

Filesize
16KB

Download
memory/1096-8-0x0000000005CD0000-0x0000000005CD4000-memory.dmp

Filesize
16KB

Download
memory/1096-10-0x0000000004150000-0x0000000004154000-memory.dmp

Filesize
16KB

Download
memory/1096-14-0x0000000004150000-0x0000000004154000-memory.dmp

Filesize
16KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads