2c24e2ea9dd67a5e72971185c262d2565a60ee90bbe731d5b25b21bbbf70b213

General

Target

2c24e2ea9dd67a5e72971185c262d2565a60ee90bbe731d5b25b21bbbf70b213.exe
Size

129KB
MD5

8b9761ee9ec7bed04d40900ba31f1cc8
SHA1

6e9d2ac90b7548eb7c2577a4463e496795941a99
SHA256

2c24e2ea9dd67a5e72971185c262d2565a60ee90bbe731d5b25b21bbbf70b213
SHA512

6a6b4767e341c15117fd817783b705f4ff8a0e4d8aef4d1f4cef8e5ca1124711e7ed5a08b21407a468c3a2cc7b766ac0a1dd5b840298c558a78798760c1c557c
SSDEEP

3072:6hRx8zd/EtzAAa1roAl4bI+m/B6SVqCgQfBUnPy8L66iiSM:6hkdEt8AMrmI+m/B6SVqCgQfBUPy8L6H

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 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

2 ip-addr.es
4 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

1496 vssadmin.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

2c24e2ea9dd67a5e72971185c262d2565a60ee90bbe731d5b25b21bbbf70b213.exeexplorer.exe

pid process

1648 2c24e2ea9dd67a5e72971185c262d2565a60ee90bbe731d5b25b21bbbf70b213.exe
608 explorer.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 1644 vssvc.exe
Token: SeRestorePrivilege 1644 vssvc.exe
Token: SeAuditPrivilege 1644 vssvc.exe

flow	ioc
2	ip-addr.es
4	myexternalip.com

pid	process
1496	vssadmin.exe

pid	process
1648	2c24e2ea9dd67a5e72971185c262d2565a60ee90bbe731d5b25b21bbbf70b213.exe
608	explorer.exe

description	pid	process
Token: SeBackupPrivilege	1644	vssvc.exe
Token: SeRestorePrivilege	1644	vssvc.exe
Token: SeAuditPrivilege	1644	vssvc.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

2c24e2ea9dd67a5e72971185c262d2565a60ee90bbe731d5b25b21bbbf70b213.exeexplorer.exe

description	pid	process	target process
PID 1648 wrote to memory of 608	1648	2c24e2ea9dd67a5e72971185c262d2565a60ee90bbe731d5b25b21bbbf70b213.exe	explorer.exe
PID 1648 wrote to memory of 608	1648	2c24e2ea9dd67a5e72971185c262d2565a60ee90bbe731d5b25b21bbbf70b213.exe	explorer.exe
PID 1648 wrote to memory of 608	1648	2c24e2ea9dd67a5e72971185c262d2565a60ee90bbe731d5b25b21bbbf70b213.exe	explorer.exe
PID 1648 wrote to memory of 608	1648	2c24e2ea9dd67a5e72971185c262d2565a60ee90bbe731d5b25b21bbbf70b213.exe	explorer.exe
PID 608 wrote to memory of 1264	608	explorer.exe	svchost.exe
PID 608 wrote to memory of 1264	608	explorer.exe	svchost.exe
PID 608 wrote to memory of 1264	608	explorer.exe	svchost.exe
PID 608 wrote to memory of 1264	608	explorer.exe	svchost.exe
PID 608 wrote to memory of 1496	608	explorer.exe	vssadmin.exe
PID 608 wrote to memory of 1496	608	explorer.exe	vssadmin.exe
PID 608 wrote to memory of 1496	608	explorer.exe	vssadmin.exe
PID 608 wrote to memory of 1496	608	explorer.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\2c24e2ea9dd67a5e72971185c262d2565a60ee90bbe731d5b25b21bbbf70b213.exe
"C:\Users\Admin\AppData\Local\Temp\2c24e2ea9dd67a5e72971185c262d2565a60ee90bbe731d5b25b21bbbf70b213.exe"
1⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1648

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:608

C:\Windows\syswow64\svchost.exe
-k netsvcs
3⤵
PID:1264

C:\Windows\syswow64\vssadmin.exe
vssadmin.exe Delete Shadows /All /Quiet
3⤵
- Interacts with shadow copies
PID:1496

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1644

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/608-54-0x0000000000000000-mapping.dmp

Download
memory/608-55-0x0000000075811000-0x0000000075813000-memory.dmp

Filesize
8KB

Download
memory/608-56-0x0000000074A41000-0x0000000074A43000-memory.dmp

Filesize
8KB

Download
memory/608-57-0x0000000000100000-0x0000000000125000-memory.dmp

Filesize
148KB

Download
memory/1264-58-0x0000000000000000-mapping.dmp

Download
memory/1264-61-0x00000000000C0000-0x00000000000E5000-memory.dmp

Filesize
148KB

Download
memory/1496-59-0x0000000000000000-mapping.dmp

Download

Analysis

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