06c3ad26348c0b4f36fdab83e695157155a98987c2bf6b0b25c7b418b8142b68

General

Target

06c3ad26348c0b4f36fdab83e695157155a98987c2bf6b0b25c7b418b8142b68.exe
Size

304KB
MD5

5dd9b1d1fa4f48d440b19b6be04de03d
SHA1

5d34fb80164c3b3687ee38f75aaa56060a971efe
SHA256

06c3ad26348c0b4f36fdab83e695157155a98987c2bf6b0b25c7b418b8142b68
SHA512

5982d337afb897f848b76bb843d67da4ebc9dc4609f5e3c4708bc0b3acd2cd79c9b3ad9f1ad1abe424be375be653c5d61490bdcf99a3bd30d38e2b7ad7fc449b
SSDEEP

6144:8yCLJBUUYhMVB0KV9FRXODf5nKzn+eL1om9T7:4b6ev1zXgf5nKbBLr7

Score

9^/10

persistence 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
Drops startup file 1 IoCs

Processes:

explorer.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\526932a.exe explorer.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\526932a.exe	explorer.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\526932 = "C:\\526932a\\526932a.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\*26932 = "C:\\526932a\\526932a.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\526932a = "C:\\Users\\Admin\\AppData\\Roaming\\526932a.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\*26932a = "C:\\Users\\Admin\\AppData\\Roaming\\526932a.exe"	explorer.exe

Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

2 ip-addr.es
8 myexternalip.com
13 myexternalip.com
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

1192 vssadmin.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

06c3ad26348c0b4f36fdab83e695157155a98987c2bf6b0b25c7b418b8142b68.exeexplorer.exe

pid process

940 06c3ad26348c0b4f36fdab83e695157155a98987c2bf6b0b25c7b418b8142b68.exe
932 explorer.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 520 vssvc.exe
Token: SeRestorePrivilege 520 vssvc.exe
Token: SeAuditPrivilege 520 vssvc.exe

flow	ioc
2	ip-addr.es
8	myexternalip.com
13	myexternalip.com

pid	process
1192	vssadmin.exe

pid	process
940	06c3ad26348c0b4f36fdab83e695157155a98987c2bf6b0b25c7b418b8142b68.exe
932	explorer.exe

description	pid	process
Token: SeBackupPrivilege	520	vssvc.exe
Token: SeRestorePrivilege	520	vssvc.exe
Token: SeAuditPrivilege	520	vssvc.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

06c3ad26348c0b4f36fdab83e695157155a98987c2bf6b0b25c7b418b8142b68.exeexplorer.exe

description	pid	process	target process
PID 940 wrote to memory of 932	940	06c3ad26348c0b4f36fdab83e695157155a98987c2bf6b0b25c7b418b8142b68.exe	explorer.exe
PID 940 wrote to memory of 932	940	06c3ad26348c0b4f36fdab83e695157155a98987c2bf6b0b25c7b418b8142b68.exe	explorer.exe
PID 940 wrote to memory of 932	940	06c3ad26348c0b4f36fdab83e695157155a98987c2bf6b0b25c7b418b8142b68.exe	explorer.exe
PID 940 wrote to memory of 932	940	06c3ad26348c0b4f36fdab83e695157155a98987c2bf6b0b25c7b418b8142b68.exe	explorer.exe
PID 932 wrote to memory of 1700	932	explorer.exe	svchost.exe
PID 932 wrote to memory of 1700	932	explorer.exe	svchost.exe
PID 932 wrote to memory of 1700	932	explorer.exe	svchost.exe
PID 932 wrote to memory of 1700	932	explorer.exe	svchost.exe
PID 932 wrote to memory of 1192	932	explorer.exe	vssadmin.exe
PID 932 wrote to memory of 1192	932	explorer.exe	vssadmin.exe
PID 932 wrote to memory of 1192	932	explorer.exe	vssadmin.exe
PID 932 wrote to memory of 1192	932	explorer.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\06c3ad26348c0b4f36fdab83e695157155a98987c2bf6b0b25c7b418b8142b68.exe
"C:\Users\Admin\AppData\Local\Temp\06c3ad26348c0b4f36fdab83e695157155a98987c2bf6b0b25c7b418b8142b68.exe"
1⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:940

C:\Windows\syswow64\explorer.exe
"C:\Windows\syswow64\explorer.exe"
2⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:932

C:\Windows\syswow64\svchost.exe
-k netsvcs
3⤵
PID:1700

C:\Windows\syswow64\vssadmin.exe
vssadmin.exe Delete Shadows /All /Quiet
3⤵
- Interacts with shadow copies
PID:1192

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:520

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

File Deletion

2

T1107

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

2

T1490

Replay Monitor

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Downloads

memory/932-57-0x0000000000000000-mapping.dmp

Download
memory/932-59-0x00000000753D1000-0x00000000753D3000-memory.dmp

Filesize
8KB

Download
memory/932-60-0x00000000000D0000-0x00000000000F5000-memory.dmp

Filesize
148KB

Download
memory/940-54-0x00000000756B1000-0x00000000756B3000-memory.dmp

Filesize
8KB

Download
memory/940-55-0x0000000000400000-0x0000000000578000-memory.dmp

Filesize
1.5MB

Download
memory/1192-62-0x0000000000000000-mapping.dmp

Download
memory/1700-61-0x0000000000000000-mapping.dmp

Download
memory/1700-64-0x0000000000080000-0x00000000000A5000-memory.dmp

Filesize
148KB

Download

Analysis

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