sodinokibi | 8b100ab70a13a925db6de213db99b34edcb93075f3841b7922c8cb4f1b251637

General

Target

8b100ab70a13a925db6de213db99b34edcb93075f3841b7922c8cb4f1b251637.dll
Size

161KB
MD5

90570c7611046d48f8d3c437c38b0639
SHA1

ab4ec0060856f376ab560631c33deb879ee76578
SHA256

8b100ab70a13a925db6de213db99b34edcb93075f3841b7922c8cb4f1b251637
SHA512

b7dc0ef470c5ce2914ba95dcdf65a5f26393281c361c7fe66a08330f351c43f2dd04b44db1945b2c8822f26fecb0a4049a3d8c73d811efbe4246c3e8cb1796c4

Score

10^/10

sodinokibi ransomware

Malware Config

Signatures

Sodin,Sodinokibi,REvil
Ransomware with advanced anti-analysis and privilege escalation functionality.
ransomware sodinokibi
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Enumerates connected drives 3 TTPs 24 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:

rundll32.exe

description	ioc	process
File opened (read-only)	\??\R:	rundll32.exe
File opened (read-only)	\??\T:	rundll32.exe
File opened (read-only)	\??\X:	rundll32.exe
File opened (read-only)	\??\Y:	rundll32.exe
File opened (read-only)	\??\A:	rundll32.exe
File opened (read-only)	\??\B:	rundll32.exe
File opened (read-only)	\??\K:	rundll32.exe
File opened (read-only)	\??\N:	rundll32.exe
File opened (read-only)	\??\S:	rundll32.exe
File opened (read-only)	\??\Z:	rundll32.exe
File opened (read-only)	\??\E:	rundll32.exe
File opened (read-only)	\??\I:	rundll32.exe
File opened (read-only)	\??\J:	rundll32.exe
File opened (read-only)	\??\O:	rundll32.exe
File opened (read-only)	\??\Q:	rundll32.exe
File opened (read-only)	\??\F:	rundll32.exe
File opened (read-only)	\??\H:	rundll32.exe
File opened (read-only)	\??\L:	rundll32.exe
File opened (read-only)	\??\M:	rundll32.exe
File opened (read-only)	\??\W:	rundll32.exe
File opened (read-only)	\??\G:	rundll32.exe
File opened (read-only)	\??\P:	rundll32.exe
File opened (read-only)	\??\U:	rundll32.exe
File opened (read-only)	\??\V:	rundll32.exe

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

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
T1107

Inhibit System Recovery
T1490

Processes:

vssadmin.exe

pid process

368 vssadmin.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

1600 rundll32.exe
1600 rundll32.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 1652 vssvc.exe
Token: SeRestorePrivilege 1652 vssvc.exe
Token: SeAuditPrivilege 1652 vssvc.exe

pid	process
368	vssadmin.exe

pid	process
1600	rundll32.exe
1600	rundll32.exe

description	pid	process
Token: SeBackupPrivilege	1652	vssvc.exe
Token: SeRestorePrivilege	1652	vssvc.exe
Token: SeAuditPrivilege	1652	vssvc.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

rundll32.exerundll32.execmd.exe

description	pid	process	target process
PID 1700 wrote to memory of 1600	1700	rundll32.exe	rundll32.exe
PID 1700 wrote to memory of 1600	1700	rundll32.exe	rundll32.exe
PID 1700 wrote to memory of 1600	1700	rundll32.exe	rundll32.exe
PID 1700 wrote to memory of 1600	1700	rundll32.exe	rundll32.exe
PID 1700 wrote to memory of 1600	1700	rundll32.exe	rundll32.exe
PID 1700 wrote to memory of 1600	1700	rundll32.exe	rundll32.exe
PID 1700 wrote to memory of 1600	1700	rundll32.exe	rundll32.exe
PID 1600 wrote to memory of 752	1600	rundll32.exe	cmd.exe
PID 1600 wrote to memory of 752	1600	rundll32.exe	cmd.exe
PID 1600 wrote to memory of 752	1600	rundll32.exe	cmd.exe
PID 1600 wrote to memory of 752	1600	rundll32.exe	cmd.exe
PID 752 wrote to memory of 368	752	cmd.exe	vssadmin.exe
PID 752 wrote to memory of 368	752	cmd.exe	vssadmin.exe
PID 752 wrote to memory of 368	752	cmd.exe	vssadmin.exe
PID 752 wrote to memory of 368	752	cmd.exe	vssadmin.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8b100ab70a13a925db6de213db99b34edcb93075f3841b7922c8cb4f1b251637.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1700

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8b100ab70a13a925db6de213db99b34edcb93075f3841b7922c8cb4f1b251637.dll,#1
2⤵
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1600

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe Delete Shadows /All /Quiet & bcdedit /set {default} recoveryenabled No & bcdedit /set {default} bootstatuspolicy ignoreallfailures
3⤵
- Suspicious use of WriteProcessMemory
PID:752

C:\Windows\SysWOW64\vssadmin.exe
vssadmin.exe Delete Shadows /All /Quiet
4⤵
- Interacts with shadow copies
PID:368

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1652

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

2

T1107

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

Inhibit System Recovery

2

T1490

Replay Monitor

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Downloads

memory/1600-54-0x0000000075601000-0x0000000075603000-memory.dmp

Filesize
8KB

Download
memory/1600-57-0x0000000003070000-0x000000000319D000-memory.dmp

Filesize
1.2MB

Download
memory/1600-58-0x00000000007D0000-0x00000000007EF000-memory.dmp

Filesize
124KB

Download
memory/1600-59-0x0000000000130000-0x000000000013A000-memory.dmp

Filesize
40KB

Download
memory/1600-60-0x0000000000140000-0x0000000000141000-memory.dmp

Filesize
4KB

Download
memory/1600-62-0x0000000000160000-0x0000000000161000-memory.dmp

Filesize
4KB

Download
memory/1600-63-0x00000000001F0000-0x00000000001F6000-memory.dmp

Filesize
24KB

Download
memory/1600-61-0x0000000000150000-0x0000000000151000-memory.dmp

Filesize
4KB

Download
memory/1600-64-0x00000000033C0000-0x00000000034C9000-memory.dmp

Filesize
1.0MB

Download

Analysis

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