cryptolocker | c8b41de669363ff7fecae244b46fcc2455cf09c10fd783815094659f912ee326

Resubmissions

28-03-2024 15:06

240328-sgx9sshb9x 10

28-03-2024 14:55

240328-sar47sha3x 10

Analysis

max time kernel
24s
max time network
16s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
28-03-2024 15:06

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General

Target

5e902a138174c34e5445685c82b2044e0b35565854471aaccef0315c77288dc9.exe
Size

208KB
MD5

12bc78e07cb69dd6ec32729240dbe537
SHA1

7b7d9b115ec10074f7166ec3379fead6e816da59
SHA256

5e902a138174c34e5445685c82b2044e0b35565854471aaccef0315c77288dc9
SHA512

c974592671b081d0af48c1aab9f9f02243773a081d9fadf70e3caa7454dca657b45bece27852397e74f601df1abdf5db496c821a5df624057355fd15c807e15a
SSDEEP

3072:GXbUMNAwQ2Jpo/AkQCUyevi8xRpz81NADJ2:ibUMKwQ2J4ReviSjeKN

Score

10^/10

cryptolocker ransomware

Malware Config

Signatures

CryptoLocker
Ransomware family with multiple variants.
ransomware cryptolocker
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1070.004

Inhibit System Recovery
T1490
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Interacts with shadow copies 2 TTPs 1 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

pid	Process
2156	vssadmin.exe

Suspicious use of AdjustPrivilegeToken 20 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3064	WMIC.exe
Token: SeSecurityPrivilege	3064	WMIC.exe
Token: SeTakeOwnershipPrivilege	3064	WMIC.exe
Token: SeLoadDriverPrivilege	3064	WMIC.exe
Token: SeSystemProfilePrivilege	3064	WMIC.exe
Token: SeSystemtimePrivilege	3064	WMIC.exe
Token: SeProfSingleProcessPrivilege	3064	WMIC.exe
Token: SeIncBasePriorityPrivilege	3064	WMIC.exe
Token: SeCreatePagefilePrivilege	3064	WMIC.exe
Token: SeBackupPrivilege	3064	WMIC.exe
Token: SeRestorePrivilege	3064	WMIC.exe
Token: SeShutdownPrivilege	3064	WMIC.exe
Token: SeDebugPrivilege	3064	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3064	WMIC.exe
Token: SeRemoteShutdownPrivilege	3064	WMIC.exe
Token: SeUndockPrivilege	3064	WMIC.exe
Token: SeManageVolumePrivilege	3064	WMIC.exe
Token: 33	3064	WMIC.exe
Token: 34	3064	WMIC.exe
Token: 35	3064	WMIC.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2292 wrote to memory of 2540	2292	5e902a138174c34e5445685c82b2044e0b35565854471aaccef0315c77288dc9.exe	28
PID 2292 wrote to memory of 2540	2292	5e902a138174c34e5445685c82b2044e0b35565854471aaccef0315c77288dc9.exe	28
PID 2292 wrote to memory of 2540	2292	5e902a138174c34e5445685c82b2044e0b35565854471aaccef0315c77288dc9.exe	28
PID 2292 wrote to memory of 3012	2292	5e902a138174c34e5445685c82b2044e0b35565854471aaccef0315c77288dc9.exe	30
PID 2292 wrote to memory of 3012	2292	5e902a138174c34e5445685c82b2044e0b35565854471aaccef0315c77288dc9.exe	30
PID 2292 wrote to memory of 3012	2292	5e902a138174c34e5445685c82b2044e0b35565854471aaccef0315c77288dc9.exe	30
PID 2540 wrote to memory of 3064	2540	cmd.exe	32
PID 2540 wrote to memory of 3064	2540	cmd.exe	32
PID 2540 wrote to memory of 3064	2540	cmd.exe	32
PID 3012 wrote to memory of 2156	3012	cmd.exe	33
PID 3012 wrote to memory of 2156	3012	cmd.exe	33
PID 3012 wrote to memory of 2156	3012	cmd.exe	33

C:\Users\Admin\AppData\Local\Temp\5e902a138174c34e5445685c82b2044e0b35565854471aaccef0315c77288dc9.exe
"C:\Users\Admin\AppData\Local\Temp\5e902a138174c34e5445685c82b2044e0b35565854471aaccef0315c77288dc9.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2292
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C wmic.exe SHADOWCOPY /nointeractive
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2540
- - C:\Windows\System32\Wbem\WMIC.exe
    wmic.exe SHADOWCOPY /nointeractive
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:3064
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C vssadmin.exe Delete Shadows /All/ Quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3012
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe Delete Shadows /All/ Quiet
    3⤵
    - Interacts with shadow copies
    PID:2156

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact