143f1344ace17f7f6247de9ebbca7fc87416531739100e99ce8fd99d43f08c33

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
12-09-2024 02:58

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General

Target

2024-09-12_b67169e98ec7dc664d8fc87e7e9e1317_cryptolocker.exe
Size

47KB
MD5

b67169e98ec7dc664d8fc87e7e9e1317
SHA1

e9af1302df16fc1ab7d73289daa457190f8153eb
SHA256

143f1344ace17f7f6247de9ebbca7fc87416531739100e99ce8fd99d43f08c33
SHA512

ec7475a97ef0ba6eb97f9b777520a22331a9c65cc3ea6d934112315cfe33969c8537b2be4dc03456ffd4d8b769d5f283caede77d7671779cf56eda1d32becc01
SSDEEP

384:e/4wODQkzonAYsju5N/surDQtOOtEvwDpjqIGROqS/WccJVJwi2B5oCCM8CLW2VY:79inqyNR/QtOOtEvwDpjBKccJVODvy35

Score

7^/10

discovery

Malware Config

Signatures

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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	2024-09-12_b67169e98ec7dc664d8fc87e7e9e1317_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3852	asih.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-12_b67169e98ec7dc664d8fc87e7e9e1317_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 3852	2128	2024-09-12_b67169e98ec7dc664d8fc87e7e9e1317_cryptolocker.exe	87
PID 2128 wrote to memory of 3852	2128	2024-09-12_b67169e98ec7dc664d8fc87e7e9e1317_cryptolocker.exe	87
PID 2128 wrote to memory of 3852	2128	2024-09-12_b67169e98ec7dc664d8fc87e7e9e1317_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-09-12_b67169e98ec7dc664d8fc87e7e9e1317_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-12_b67169e98ec7dc664d8fc87e7e9e1317_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3852

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
48KB

MD5
12d41a7f9319273fbcff74cf5085be9b

SHA1
9f27922ab034fd90a23a637f2286f6c497a6b44e

SHA256
b3797e68d38bb532360f6c44bbb8d9eecc04717bca9423f650975d18649f729d

SHA512
e92cc19c3f523fc7dd6a37cfdec8a02da95c2a66479ce78ce44b53f178e1001187bddd828030c82afb8d9b29bb8130767023b15097ed6d674ead7e5bf3557261

Download Submit
memory/2128-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2128-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/2128-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/2128-3-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2128-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3852-19-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/3852-25-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/3852-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download