b575cbe291920b98cd523890c53902ccaad1c1f0357024c51e0ac5b1d0cd3786

General

Target

captcha_visual_.bin.exe
Size

42KB
MD5

b2b278aed753209592b051998cc78d6e
SHA1

187fade13fa2590af0a7168a5fa1bbdd38fb696f
SHA256

b575cbe291920b98cd523890c53902ccaad1c1f0357024c51e0ac5b1d0cd3786
SHA512

a21486edf9da1e1b99135ce61f120e00dee2915d99b345c0925cf4a8df308da3344e2dc932d6b2fea6e570ddef9ea49527b1981f1ef95896a56e731be4516164

Score

9^/10

ransomware

Malware Config

Signatures

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490
Deletes backup catalog 3 TTPs 1 IoCs
Uses wbadmin.exe to inhibit system recovery.
ransomware

Command-Line Interface
T1059

File Deletion
T1107

Inhibit System Recovery
T1490

Processes:

wbadmin.exe

pid process

960 wbadmin.exe
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Processes:

vssadmin.exe

pid process

828 vssadmin.exe

pid	process
960	wbadmin.exe

pid	process
828	vssadmin.exe

Suspicious use of AdjustPrivilegeToken 26 IoCs

Processes:

vssvc.exewbengine.exeWMIC.exe

description	pid	process
Token: SeBackupPrivilege	1300	vssvc.exe
Token: SeRestorePrivilege	1300	vssvc.exe
Token: SeAuditPrivilege	1300	vssvc.exe
Token: SeBackupPrivilege	1764	wbengine.exe
Token: SeRestorePrivilege	1764	wbengine.exe
Token: SeSecurityPrivilege	1764	wbengine.exe
Token: SeIncreaseQuotaPrivilege	1852	WMIC.exe
Token: SeSecurityPrivilege	1852	WMIC.exe
Token: SeTakeOwnershipPrivilege	1852	WMIC.exe
Token: SeLoadDriverPrivilege	1852	WMIC.exe
Token: SeSystemProfilePrivilege	1852	WMIC.exe
Token: SeSystemtimePrivilege	1852	WMIC.exe
Token: SeProfSingleProcessPrivilege	1852	WMIC.exe
Token: SeIncBasePriorityPrivilege	1852	WMIC.exe
Token: SeCreatePagefilePrivilege	1852	WMIC.exe
Token: SeBackupPrivilege	1852	WMIC.exe
Token: SeRestorePrivilege	1852	WMIC.exe
Token: SeShutdownPrivilege	1852	WMIC.exe
Token: SeDebugPrivilege	1852	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1852	WMIC.exe
Token: SeRemoteShutdownPrivilege	1852	WMIC.exe
Token: SeUndockPrivilege	1852	WMIC.exe
Token: SeManageVolumePrivilege	1852	WMIC.exe
Token: 33	1852	WMIC.exe
Token: 34	1852	WMIC.exe
Token: 35	1852	WMIC.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

captcha_visual_.bin.execmd.exe

description	pid	process	target process
PID 1824 wrote to memory of 1780	1824	captcha_visual_.bin.exe	cmd.exe
PID 1824 wrote to memory of 1780	1824	captcha_visual_.bin.exe	cmd.exe
PID 1824 wrote to memory of 1780	1824	captcha_visual_.bin.exe	cmd.exe
PID 1824 wrote to memory of 1780	1824	captcha_visual_.bin.exe	cmd.exe
PID 1780 wrote to memory of 828	1780	cmd.exe	vssadmin.exe
PID 1780 wrote to memory of 828	1780	cmd.exe	vssadmin.exe
PID 1780 wrote to memory of 828	1780	cmd.exe	vssadmin.exe
PID 1780 wrote to memory of 960	1780	cmd.exe	wbadmin.exe
PID 1780 wrote to memory of 960	1780	cmd.exe	wbadmin.exe
PID 1780 wrote to memory of 960	1780	cmd.exe	wbadmin.exe
PID 1780 wrote to memory of 1852	1780	cmd.exe	WMIC.exe
PID 1780 wrote to memory of 1852	1780	cmd.exe	WMIC.exe
PID 1780 wrote to memory of 1852	1780	cmd.exe	WMIC.exe

C:\Users\Admin\AppData\Local\Temp\captcha_visual_.bin.exe
"C:\Users\Admin\AppData\Local\Temp\captcha_visual_.bin.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1824

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1780

C:\Windows\system32\vssadmin.exe
vssadmin delete shadows /all /quiet
3⤵
- Interacts with shadow copies
PID:828

C:\Windows\system32\wbadmin.exe
wbadmin delete catalog -quiet
3⤵
- Deletes backup catalog
PID:960

C:\Windows\System32\Wbem\WMIC.exe
wmic shadowcopy delete
3⤵
- Suspicious use of AdjustPrivilegeToken
PID:1852

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1300

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1764

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:1712

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:1608

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Command-Line Interface

1

T1059

Persistence

Privilege Escalation

Defense Evasion

File Deletion

3

T1107

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

3

T1490

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Downloads

memory/828-3-0x0000000000000000-mapping.dmp

Download
memory/960-4-0x0000000000000000-mapping.dmp

Download
memory/1780-2-0x0000000000000000-mapping.dmp

Download
memory/1852-5-0x0000000000000000-mapping.dmp

Download

Analysis

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