eaf88aaa9f7adf0c8dc9054eddc35fa9c1681823e6d9486a536ba4c73cadb104

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
04/10/2022, 04:30

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General

Target

eaf88aaa9f7adf0c8dc9054eddc35fa9c1681823e6d9486a536ba4c73cadb104.exe
Size

36KB
MD5

5714cbdcc9fcc0902078e3e00f6f8318
SHA1

b7c46bc7ae6b6d2ca61ab4172bf106f0a3a42480
SHA256

eaf88aaa9f7adf0c8dc9054eddc35fa9c1681823e6d9486a536ba4c73cadb104
SHA512

3cf729d8ee5bc668d40ae38490b8939fdb41b0fa579d3d2961969e9f3e68a825bb1bf113495fbcab0271a003fbfcfcb0438ddc20713807f550cc5d5c4ac0e549
SSDEEP

384:fsjcZTurRgiI+pDU68x1kE1h8GImYJMGkvvGd23AcYCthUnFK+RLW7FJDlKNAUCr:1ZTEgiTDUaF4K33CXUFOknm

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3032	winlogon.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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	eaf88aaa9f7adf0c8dc9054eddc35fa9c1681823e6d9486a536ba4c73cadb104.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run	winlogon.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NVIDIA Media Center Library = "C:\\Users\\Admin\\Admin1\\winlogon.exe"	winlogon.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	winlogon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\NVIDIA Media Center Library = "C:\\Users\\Admin\\Admin1\\winlogon.exe"	winlogon.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 SetWindowsHookEx 2 IoCs

pid	Process
4196	eaf88aaa9f7adf0c8dc9054eddc35fa9c1681823e6d9486a536ba4c73cadb104.exe
3032	winlogon.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4196 wrote to memory of 3032	4196	eaf88aaa9f7adf0c8dc9054eddc35fa9c1681823e6d9486a536ba4c73cadb104.exe	78
PID 4196 wrote to memory of 3032	4196	eaf88aaa9f7adf0c8dc9054eddc35fa9c1681823e6d9486a536ba4c73cadb104.exe	78
PID 4196 wrote to memory of 3032	4196	eaf88aaa9f7adf0c8dc9054eddc35fa9c1681823e6d9486a536ba4c73cadb104.exe	78

C:\Users\Admin\AppData\Local\Temp\eaf88aaa9f7adf0c8dc9054eddc35fa9c1681823e6d9486a536ba4c73cadb104.exe
"C:\Users\Admin\AppData\Local\Temp\eaf88aaa9f7adf0c8dc9054eddc35fa9c1681823e6d9486a536ba4c73cadb104.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4196
- C:\Users\Admin\Admin1\winlogon.exe
  "C:\Users\Admin\Admin1\winlogon.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetWindowsHookEx
  PID:3032

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

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\Admin1\winlogon.exe

Filesize
36KB

MD5
5714cbdcc9fcc0902078e3e00f6f8318

SHA1
b7c46bc7ae6b6d2ca61ab4172bf106f0a3a42480

SHA256
eaf88aaa9f7adf0c8dc9054eddc35fa9c1681823e6d9486a536ba4c73cadb104

SHA512
3cf729d8ee5bc668d40ae38490b8939fdb41b0fa579d3d2961969e9f3e68a825bb1bf113495fbcab0271a003fbfcfcb0438ddc20713807f550cc5d5c4ac0e549

Download Submit
C:\Users\Admin\Admin1\winlogon.exe

Filesize
36KB

MD5
5714cbdcc9fcc0902078e3e00f6f8318

SHA1
b7c46bc7ae6b6d2ca61ab4172bf106f0a3a42480

SHA256
eaf88aaa9f7adf0c8dc9054eddc35fa9c1681823e6d9486a536ba4c73cadb104

SHA512
3cf729d8ee5bc668d40ae38490b8939fdb41b0fa579d3d2961969e9f3e68a825bb1bf113495fbcab0271a003fbfcfcb0438ddc20713807f550cc5d5c4ac0e549

Download Submit
memory/3032-140-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3032-142-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/4196-132-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/4196-141-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download