4a3a4dcda0532f1521ae8ebe5efe7ae77c0e51b03c85e46edbc08c9e012ad879

General

Target

4a3a4dcda0532f1521ae8ebe5efe7ae77c0e51b03c85e46edbc08c9e012ad879.exe
Size

283KB
MD5

2fd3124d005d926474b37989e761b5d7
SHA1

7672db2950da80660eb40e5715c42b6a0d55cff8
SHA256

4a3a4dcda0532f1521ae8ebe5efe7ae77c0e51b03c85e46edbc08c9e012ad879
SHA512

cf3cffe8dd67473c8cdf4b76cf4126623ed5b8a460f6c8236bde992c28a3a94e49464fb649cfdd36870b7878f160740f381a15ed4ed2c09cd976a3b833ab34ec
SSDEEP

6144:Ty2np1+qX4GIELmfaPPeSm/FGPOG/bKux27:Ty2nP+qX43E6CPPeSmGpxc

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
936	svhost.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
652	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b5857819bb096c04134249d6f4e71934.exe	svhost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b5857819bb096c04134249d6f4e71934.exe	svhost.exe

Loads dropped DLL 2 IoCs

pid	Process
1676	4a3a4dcda0532f1521ae8ebe5efe7ae77c0e51b03c85e46edbc08c9e012ad879.exe
1676	4a3a4dcda0532f1521ae8ebe5efe7ae77c0e51b03c85e46edbc08c9e012ad879.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-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\b5857819bb096c04134249d6f4e71934 = "\"C:\\Users\\Admin\\AppData\\Roaming\\svhost.exe\" .."	svhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\b5857819bb096c04134249d6f4e71934 = "\"C:\\Users\\Admin\\AppData\\Roaming\\svhost.exe\" .."	svhost.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
936	svhost.exe
936	svhost.exe
936	svhost.exe
936	svhost.exe
936	svhost.exe
936	svhost.exe
936	svhost.exe
936	svhost.exe
936	svhost.exe
936	svhost.exe
936	svhost.exe
936	svhost.exe
936	svhost.exe
936	svhost.exe
936	svhost.exe
936	svhost.exe
936	svhost.exe
936	svhost.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	1676	4a3a4dcda0532f1521ae8ebe5efe7ae77c0e51b03c85e46edbc08c9e012ad879.exe
Token: 33	1676	4a3a4dcda0532f1521ae8ebe5efe7ae77c0e51b03c85e46edbc08c9e012ad879.exe
Token: SeIncBasePriorityPrivilege	1676	4a3a4dcda0532f1521ae8ebe5efe7ae77c0e51b03c85e46edbc08c9e012ad879.exe
Token: 33	1676	4a3a4dcda0532f1521ae8ebe5efe7ae77c0e51b03c85e46edbc08c9e012ad879.exe
Token: SeIncBasePriorityPrivilege	1676	4a3a4dcda0532f1521ae8ebe5efe7ae77c0e51b03c85e46edbc08c9e012ad879.exe
Token: SeDebugPrivilege	936	svhost.exe
Token: 33	936	svhost.exe
Token: SeIncBasePriorityPrivilege	936	svhost.exe
Token: 33	936	svhost.exe
Token: SeIncBasePriorityPrivilege	936	svhost.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1676 wrote to memory of 936	1676	4a3a4dcda0532f1521ae8ebe5efe7ae77c0e51b03c85e46edbc08c9e012ad879.exe	28
PID 1676 wrote to memory of 936	1676	4a3a4dcda0532f1521ae8ebe5efe7ae77c0e51b03c85e46edbc08c9e012ad879.exe	28
PID 1676 wrote to memory of 936	1676	4a3a4dcda0532f1521ae8ebe5efe7ae77c0e51b03c85e46edbc08c9e012ad879.exe	28
PID 1676 wrote to memory of 936	1676	4a3a4dcda0532f1521ae8ebe5efe7ae77c0e51b03c85e46edbc08c9e012ad879.exe	28
PID 936 wrote to memory of 652	936	svhost.exe	29
PID 936 wrote to memory of 652	936	svhost.exe	29
PID 936 wrote to memory of 652	936	svhost.exe	29
PID 936 wrote to memory of 652	936	svhost.exe	29

C:\Users\Admin\AppData\Local\Temp\4a3a4dcda0532f1521ae8ebe5efe7ae77c0e51b03c85e46edbc08c9e012ad879.exe
"C:\Users\Admin\AppData\Local\Temp\4a3a4dcda0532f1521ae8ebe5efe7ae77c0e51b03c85e46edbc08c9e012ad879.exe"
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1676
- C:\Users\Admin\AppData\Roaming\svhost.exe
  "C:\Users\Admin\AppData\Roaming\svhost.exe"
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:936
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\svhost.exe" "svhost.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:652

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

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Downloads

C:\Users\Admin\AppData\Roaming\svhost.exe

Filesize
283KB

MD5
2fd3124d005d926474b37989e761b5d7

SHA1
7672db2950da80660eb40e5715c42b6a0d55cff8

SHA256
4a3a4dcda0532f1521ae8ebe5efe7ae77c0e51b03c85e46edbc08c9e012ad879

SHA512
cf3cffe8dd67473c8cdf4b76cf4126623ed5b8a460f6c8236bde992c28a3a94e49464fb649cfdd36870b7878f160740f381a15ed4ed2c09cd976a3b833ab34ec

Download Submit
C:\Users\Admin\AppData\Roaming\svhost.exe

Filesize
283KB

MD5
2fd3124d005d926474b37989e761b5d7

SHA1
7672db2950da80660eb40e5715c42b6a0d55cff8

SHA256
4a3a4dcda0532f1521ae8ebe5efe7ae77c0e51b03c85e46edbc08c9e012ad879

SHA512
cf3cffe8dd67473c8cdf4b76cf4126623ed5b8a460f6c8236bde992c28a3a94e49464fb649cfdd36870b7878f160740f381a15ed4ed2c09cd976a3b833ab34ec

Download Submit
\Users\Admin\AppData\Roaming\svhost.exe

Filesize
283KB

MD5
2fd3124d005d926474b37989e761b5d7

SHA1
7672db2950da80660eb40e5715c42b6a0d55cff8

SHA256
4a3a4dcda0532f1521ae8ebe5efe7ae77c0e51b03c85e46edbc08c9e012ad879

SHA512
cf3cffe8dd67473c8cdf4b76cf4126623ed5b8a460f6c8236bde992c28a3a94e49464fb649cfdd36870b7878f160740f381a15ed4ed2c09cd976a3b833ab34ec

Download Submit
\Users\Admin\AppData\Roaming\svhost.exe

Filesize
283KB

MD5
2fd3124d005d926474b37989e761b5d7

SHA1
7672db2950da80660eb40e5715c42b6a0d55cff8

SHA256
4a3a4dcda0532f1521ae8ebe5efe7ae77c0e51b03c85e46edbc08c9e012ad879

SHA512
cf3cffe8dd67473c8cdf4b76cf4126623ed5b8a460f6c8236bde992c28a3a94e49464fb649cfdd36870b7878f160740f381a15ed4ed2c09cd976a3b833ab34ec

Download Submit
memory/936-65-0x0000000074BB0000-0x000000007515B000-memory.dmp

Filesize
5.7MB

Download
memory/936-66-0x0000000074BB0000-0x000000007515B000-memory.dmp

Filesize
5.7MB

Download
memory/936-67-0x0000000002146000-0x0000000002157000-memory.dmp

Filesize
68KB

Download
memory/936-68-0x0000000002146000-0x0000000002157000-memory.dmp

Filesize
68KB

Download
memory/1676-54-0x0000000075C81000-0x0000000075C83000-memory.dmp

Filesize
8KB

Download
memory/1676-55-0x0000000074BB0000-0x000000007515B000-memory.dmp

Filesize
5.7MB

Download
memory/1676-62-0x0000000074BB0000-0x000000007515B000-memory.dmp

Filesize
5.7MB

Download

Analysis

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