017e5cc2f5d277a9949bfd5fd33cf859036f1de49c965b75b4761ba50a2b85dc

Analysis

max time kernel
178s
max time network
190s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
01-10-2022 23:07

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General

Target

017e5cc2f5d277a9949bfd5fd33cf859036f1de49c965b75b4761ba50a2b85dc.exe
Size

56KB
MD5

03537c8c6a2fe409887fae7425232540
SHA1

608a1243f9f0ae11a3107f44321cd05da9a38f61
SHA256

017e5cc2f5d277a9949bfd5fd33cf859036f1de49c965b75b4761ba50a2b85dc
SHA512

48671da9c4de610864fc6a6f3f81ae8eae183da449dc6a44d79e99a82f17e10d9fb08454cb3d947ebb85e0e531c03319d27a8b8d54ee2587e62f86b09d721105
SSDEEP

768:jjIAHrJH5MTDUb0rc2O1Dmnag0xc1ChTsDoCoJOe2atoLQzJ4:Qyp6Dlrc2omN061ChTsDXe2aEQz

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
5028	scrss.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
4524	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	017e5cc2f5d277a9949bfd5fd33cf859036f1de49c965b75b4761ba50a2b85dc.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8c0a103b3db203be4aa4019bc5c6f51b.exe	scrss.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8c0a103b3db203be4aa4019bc5c6f51b.exe	scrss.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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\8c0a103b3db203be4aa4019bc5c6f51b = "\"C:\\Users\\Admin\\scrss.exe\" .."	scrss.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\8c0a103b3db203be4aa4019bc5c6f51b = "\"C:\\Users\\Admin\\scrss.exe\" .."	scrss.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 23 IoCs

pid	Process
5028	scrss.exe
5028	scrss.exe
5028	scrss.exe
5028	scrss.exe
5028	scrss.exe
5028	scrss.exe
5028	scrss.exe
5028	scrss.exe
5028	scrss.exe
5028	scrss.exe
5028	scrss.exe
5028	scrss.exe
5028	scrss.exe
5028	scrss.exe
5028	scrss.exe
5028	scrss.exe
5028	scrss.exe
5028	scrss.exe
5028	scrss.exe
5028	scrss.exe
5028	scrss.exe
5028	scrss.exe
5028	scrss.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5028	scrss.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4224 wrote to memory of 5028	4224	017e5cc2f5d277a9949bfd5fd33cf859036f1de49c965b75b4761ba50a2b85dc.exe	81
PID 4224 wrote to memory of 5028	4224	017e5cc2f5d277a9949bfd5fd33cf859036f1de49c965b75b4761ba50a2b85dc.exe	81
PID 4224 wrote to memory of 5028	4224	017e5cc2f5d277a9949bfd5fd33cf859036f1de49c965b75b4761ba50a2b85dc.exe	81
PID 5028 wrote to memory of 4524	5028	scrss.exe	82
PID 5028 wrote to memory of 4524	5028	scrss.exe	82
PID 5028 wrote to memory of 4524	5028	scrss.exe	82

C:\Users\Admin\AppData\Local\Temp\017e5cc2f5d277a9949bfd5fd33cf859036f1de49c965b75b4761ba50a2b85dc.exe
"C:\Users\Admin\AppData\Local\Temp\017e5cc2f5d277a9949bfd5fd33cf859036f1de49c965b75b4761ba50a2b85dc.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4224
- C:\Users\Admin\scrss.exe
  "C:\Users\Admin\scrss.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:5028
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\scrss.exe" "scrss.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:4524

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\scrss.exe

Filesize
56KB

MD5
03537c8c6a2fe409887fae7425232540

SHA1
608a1243f9f0ae11a3107f44321cd05da9a38f61

SHA256
017e5cc2f5d277a9949bfd5fd33cf859036f1de49c965b75b4761ba50a2b85dc

SHA512
48671da9c4de610864fc6a6f3f81ae8eae183da449dc6a44d79e99a82f17e10d9fb08454cb3d947ebb85e0e531c03319d27a8b8d54ee2587e62f86b09d721105

Download Submit
C:\Users\Admin\scrss.exe

Filesize
56KB

MD5
03537c8c6a2fe409887fae7425232540

SHA1
608a1243f9f0ae11a3107f44321cd05da9a38f61

SHA256
017e5cc2f5d277a9949bfd5fd33cf859036f1de49c965b75b4761ba50a2b85dc

SHA512
48671da9c4de610864fc6a6f3f81ae8eae183da449dc6a44d79e99a82f17e10d9fb08454cb3d947ebb85e0e531c03319d27a8b8d54ee2587e62f86b09d721105

Download Submit
memory/4224-132-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/4224-136-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/5028-138-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/5028-139-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download