b9c02bccbdd0dc6a74eb0263a03025f34f1047f086e96bf469c6bdcad5b05b13

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2024 06:33

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General

Target

2024-09-19_f1f5c62149e973a9d2789cbc555c9cea_cryptolocker.exe
Size

92KB
MD5

f1f5c62149e973a9d2789cbc555c9cea
SHA1

80b1916fa46cca811e516c117fe538cf75728248
SHA256

b9c02bccbdd0dc6a74eb0263a03025f34f1047f086e96bf469c6bdcad5b05b13
SHA512

502b9463d175ea50889998c0b76d01260a3e4ac8c0f30a574622b5575c097c4cadc6b8ecb75e5047dbd605f7adea2ba8159301700f416fcc7584bc934a0c06ff
SSDEEP

1536:26QFElP6n+gBQMOtEvwDpjQGYQbN/PKwNC7:26a+2OtEvwDpjtzw

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	2024-09-19_f1f5c62149e973a9d2789cbc555c9cea_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3664	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	2024-09-19_f1f5c62149e973a9d2789cbc555c9cea_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 4644 wrote to memory of 3664	4644	2024-09-19_f1f5c62149e973a9d2789cbc555c9cea_cryptolocker.exe	82
PID 4644 wrote to memory of 3664	4644	2024-09-19_f1f5c62149e973a9d2789cbc555c9cea_cryptolocker.exe	82
PID 4644 wrote to memory of 3664	4644	2024-09-19_f1f5c62149e973a9d2789cbc555c9cea_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-19_f1f5c62149e973a9d2789cbc555c9cea_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_f1f5c62149e973a9d2789cbc555c9cea_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4644
- 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:3664

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
92KB

MD5
f32336913202f042f10a7de640e05bf3

SHA1
ddd36cc0dd784cea2e8b788cf676158525a4be11

SHA256
c251c4a6a816bc6c93bc72215d3ecb40faf3052f67051675137c8c9800260356

SHA512
a9b974d160706f27ee849c08ab979794ad3479380ab66e6e843773b41eee437d947944510cff14d41e22fee516257e1842462d6e4defd38bf0956c90bb0e6fe5

Download Submit
memory/3664-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3664-17-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4644-0-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/4644-1-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/4644-2-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download