cryptolocker | 5e902a138174c34e5445685c82b2044e0b35565854471aaccef0315c77288dc9

General

Target

5e902a138174c34e5445685c82b2044e0b35565854471aaccef0315c77288dc9.exe
Size

208KB
MD5

12bc78e07cb69dd6ec32729240dbe537
SHA1

7b7d9b115ec10074f7166ec3379fead6e816da59
SHA256

5e902a138174c34e5445685c82b2044e0b35565854471aaccef0315c77288dc9
SHA512

c974592671b081d0af48c1aab9f9f02243773a081d9fadf70e3caa7454dca657b45bece27852397e74f601df1abdf5db496c821a5df624057355fd15c807e15a
SSDEEP

3072:GXbUMNAwQ2Jpo/AkQCUyevi8xRpz81NADJ2:ibUMKwQ2J4ReviSjeKN

Score

10^/10

cryptolocker defense_evasion execution impact ransomware

Malware Config

Signatures

CryptoLocker
Ransomware family with multiple variants.
ransomware cryptolocker
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047

Detects command variations typically used by ransomware 1 IoCs

resource	yara_rule
behavioral1/memory/1728-1-0x0000000000980000-0x00000000009BA000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware

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

System Information Discovery
T1082

Interacts with shadow copies 3 TTPs 1 IoCs

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

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

Direct Volume Access

T1006

pid	Process
2560	vssadmin.exe

Suspicious use of AdjustPrivilegeToken 20 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2640	WMIC.exe
Token: SeSecurityPrivilege	2640	WMIC.exe
Token: SeTakeOwnershipPrivilege	2640	WMIC.exe
Token: SeLoadDriverPrivilege	2640	WMIC.exe
Token: SeSystemProfilePrivilege	2640	WMIC.exe
Token: SeSystemtimePrivilege	2640	WMIC.exe
Token: SeProfSingleProcessPrivilege	2640	WMIC.exe
Token: SeIncBasePriorityPrivilege	2640	WMIC.exe
Token: SeCreatePagefilePrivilege	2640	WMIC.exe
Token: SeBackupPrivilege	2640	WMIC.exe
Token: SeRestorePrivilege	2640	WMIC.exe
Token: SeShutdownPrivilege	2640	WMIC.exe
Token: SeDebugPrivilege	2640	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2640	WMIC.exe
Token: SeRemoteShutdownPrivilege	2640	WMIC.exe
Token: SeUndockPrivilege	2640	WMIC.exe
Token: SeManageVolumePrivilege	2640	WMIC.exe
Token: 33	2640	WMIC.exe
Token: 34	2640	WMIC.exe
Token: 35	2640	WMIC.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 2516	1728	5e902a138174c34e5445685c82b2044e0b35565854471aaccef0315c77288dc9.exe	28
PID 1728 wrote to memory of 2516	1728	5e902a138174c34e5445685c82b2044e0b35565854471aaccef0315c77288dc9.exe	28
PID 1728 wrote to memory of 2516	1728	5e902a138174c34e5445685c82b2044e0b35565854471aaccef0315c77288dc9.exe	28
PID 1728 wrote to memory of 2512	1728	5e902a138174c34e5445685c82b2044e0b35565854471aaccef0315c77288dc9.exe	29
PID 1728 wrote to memory of 2512	1728	5e902a138174c34e5445685c82b2044e0b35565854471aaccef0315c77288dc9.exe	29
PID 1728 wrote to memory of 2512	1728	5e902a138174c34e5445685c82b2044e0b35565854471aaccef0315c77288dc9.exe	29
PID 2516 wrote to memory of 2640	2516	cmd.exe	32
PID 2516 wrote to memory of 2640	2516	cmd.exe	32
PID 2516 wrote to memory of 2640	2516	cmd.exe	32
PID 2512 wrote to memory of 2560	2512	cmd.exe	33
PID 2512 wrote to memory of 2560	2512	cmd.exe	33
PID 2512 wrote to memory of 2560	2512	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:1728
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C wmic.exe SHADOWCOPY /nointeractive
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2516
- - C:\Windows\System32\Wbem\WMIC.exe
    wmic.exe SHADOWCOPY /nointeractive
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2640
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C vssadmin.exe Delete Shadows /All/ Quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2512
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe Delete Shadows /All/ Quiet
    3⤵
    - Interacts with shadow copies
    PID:2560

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

1

T1047

Persistence

Privilege Escalation

Defense Evasion

Direct Volume Access

1

T1006

Indicator Removal

2

T1070

File Deletion

2

T1070.004

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2

T1490

Replay Monitor

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Downloads

memory/1728-0-0x000007FEF5C53000-0x000007FEF5C54000-memory.dmp

Filesize
4KB

Download
memory/1728-1-0x0000000000980000-0x00000000009BA000-memory.dmp

Filesize
232KB

Download
memory/1728-2-0x000007FEF5C50000-0x000007FEF663C000-memory.dmp

Filesize
9.9MB

Download
memory/1728-3-0x000007FEF5C50000-0x000007FEF663C000-memory.dmp

Filesize
9.9MB

Download
memory/1728-65-0x000007FEF5C53000-0x000007FEF5C54000-memory.dmp

Filesize
4KB

Download
memory/1728-66-0x000007FEF5C50000-0x000007FEF663C000-memory.dmp

Filesize
9.9MB

Download
memory/1728-67-0x000007FEF5C50000-0x000007FEF663C000-memory.dmp

Filesize
9.9MB

Download

Analysis

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