b2fc3a507ef05d039b649cadeccd19a9ccd834a5035c190bcfd7c2def62dd020

General

Target

b2fc3a507ef05d039b649cadeccd19a9ccd834a5035c190bcfd7c2def62dd020.exe
Size

69KB
MD5

3990819ed755fc8b95c9609fff838510
SHA1

e6696660c8e5fb22d8d49d2c13039e3d8760f975
SHA256

b2fc3a507ef05d039b649cadeccd19a9ccd834a5035c190bcfd7c2def62dd020
SHA512

1cd1ac6c592b318a0df850868f5b20606116c50fdecad625bb15f45c1eb3aa39ce86027c81ecf1237ce6c5728fc9b86db6f8bca18f6523460956e300f7500a52
SSDEEP

768:9k8iRvaWINtVvldosDPkwL2V2AizhGgzTqLE4oh7Ta96Gl:GRyWC9dxlY/QOLE4WXa

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
592	svchost.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
1656	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8cb2d0984e02175d2ed44549b6a96a45.exe	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8cb2d0984e02175d2ed44549b6a96a45.exe	svchost.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\8cb2d0984e02175d2ed44549b6a96a45 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost.exe\" .."	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\8cb2d0984e02175d2ed44549b6a96a45 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost.exe\" .."	svchost.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 19 IoCs

description	pid	Process
Token: SeDebugPrivilege	592	svchost.exe
Token: 33	592	svchost.exe
Token: SeIncBasePriorityPrivilege	592	svchost.exe
Token: 33	592	svchost.exe
Token: SeIncBasePriorityPrivilege	592	svchost.exe
Token: 33	592	svchost.exe
Token: SeIncBasePriorityPrivilege	592	svchost.exe
Token: 33	592	svchost.exe
Token: SeIncBasePriorityPrivilege	592	svchost.exe
Token: 33	592	svchost.exe
Token: SeIncBasePriorityPrivilege	592	svchost.exe
Token: 33	592	svchost.exe
Token: SeIncBasePriorityPrivilege	592	svchost.exe
Token: 33	592	svchost.exe
Token: SeIncBasePriorityPrivilege	592	svchost.exe
Token: 33	592	svchost.exe
Token: SeIncBasePriorityPrivilege	592	svchost.exe
Token: 33	592	svchost.exe
Token: SeIncBasePriorityPrivilege	592	svchost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1600 wrote to memory of 592	1600	b2fc3a507ef05d039b649cadeccd19a9ccd834a5035c190bcfd7c2def62dd020.exe	27
PID 1600 wrote to memory of 592	1600	b2fc3a507ef05d039b649cadeccd19a9ccd834a5035c190bcfd7c2def62dd020.exe	27
PID 1600 wrote to memory of 592	1600	b2fc3a507ef05d039b649cadeccd19a9ccd834a5035c190bcfd7c2def62dd020.exe	27
PID 592 wrote to memory of 1656	592	svchost.exe	28
PID 592 wrote to memory of 1656	592	svchost.exe	28
PID 592 wrote to memory of 1656	592	svchost.exe	28

C:\Users\Admin\AppData\Local\Temp\b2fc3a507ef05d039b649cadeccd19a9ccd834a5035c190bcfd7c2def62dd020.exe
"C:\Users\Admin\AppData\Local\Temp\b2fc3a507ef05d039b649cadeccd19a9ccd834a5035c190bcfd7c2def62dd020.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1600
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:592
- - C:\Windows\system32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "svchost.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:1656

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\svchost.exe

Filesize
69KB

MD5
3990819ed755fc8b95c9609fff838510

SHA1
e6696660c8e5fb22d8d49d2c13039e3d8760f975

SHA256
b2fc3a507ef05d039b649cadeccd19a9ccd834a5035c190bcfd7c2def62dd020

SHA512
1cd1ac6c592b318a0df850868f5b20606116c50fdecad625bb15f45c1eb3aa39ce86027c81ecf1237ce6c5728fc9b86db6f8bca18f6523460956e300f7500a52

Download Submit
C:\Users\Admin\AppData\Local\Temp\svchost.exe

Filesize
69KB

MD5
3990819ed755fc8b95c9609fff838510

SHA1
e6696660c8e5fb22d8d49d2c13039e3d8760f975

SHA256
b2fc3a507ef05d039b649cadeccd19a9ccd834a5035c190bcfd7c2def62dd020

SHA512
1cd1ac6c592b318a0df850868f5b20606116c50fdecad625bb15f45c1eb3aa39ce86027c81ecf1237ce6c5728fc9b86db6f8bca18f6523460956e300f7500a52

Download Submit
memory/592-59-0x000007FEF2D10000-0x000007FEF3733000-memory.dmp

Filesize
10.1MB

Download
memory/592-60-0x000007FEEE8D0000-0x000007FEEF966000-memory.dmp

Filesize
16.6MB

Download
memory/592-63-0x0000000000676000-0x0000000000695000-memory.dmp

Filesize
124KB

Download
memory/592-64-0x0000000000676000-0x0000000000695000-memory.dmp

Filesize
124KB

Download
memory/1600-54-0x000007FEF3740000-0x000007FEF4163000-memory.dmp

Filesize
10.1MB

Download
memory/1600-55-0x000007FEF26A0000-0x000007FEF3736000-memory.dmp

Filesize
16.6MB

Download
memory/1656-62-0x000007FEFBB51000-0x000007FEFBB53000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing