d7a0a09deded6c8d0011a344c5780e9e9a94ca1395f7e24b117d070feecb7943

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
04-04-2024 20:33

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General

Target

2024-04-04_9a2aa0cbe58afe7a3544f2c4230f4f62_cryptolocker.exe
Size

38KB
MD5

9a2aa0cbe58afe7a3544f2c4230f4f62
SHA1

2bf290d2485c9b942065f9995981c4fe6b4eaa8e
SHA256

d7a0a09deded6c8d0011a344c5780e9e9a94ca1395f7e24b117d070feecb7943
SHA512

df3e89d2598ece1ad524ef6db254fde3687b3da0357cb6fb3c7785208e79f82d1e15e773b7537a74ab026216b62ae314382f16336253d0f5b5a6d7e409d37696
SSDEEP

768:bA74zYcgT/Ekd0ryfjPIunqpeNswmxT4Hmd:bA6YcA/X6G0W1BGd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a000000023038-12.dat	CryptoLocker_rule2

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-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	2024-04-04_9a2aa0cbe58afe7a3544f2c4230f4f62_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3324	hasfj.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2680 wrote to memory of 3324	2680	2024-04-04_9a2aa0cbe58afe7a3544f2c4230f4f62_cryptolocker.exe	86
PID 2680 wrote to memory of 3324	2680	2024-04-04_9a2aa0cbe58afe7a3544f2c4230f4f62_cryptolocker.exe	86
PID 2680 wrote to memory of 3324	2680	2024-04-04_9a2aa0cbe58afe7a3544f2c4230f4f62_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-04-04_9a2aa0cbe58afe7a3544f2c4230f4f62_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-04_9a2aa0cbe58afe7a3544f2c4230f4f62_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2680
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3324

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
38KB

MD5
3a4ce7af0c23c2c07168ab780e714b54

SHA1
3e55fe7c3f9b58274751b86bc9d4fd39e4d0bd54

SHA256
841f0765a5c211c34943c99acde004abc7f5ca157a54d5d46bd51b31a2319d61

SHA512
b8e0555cf9e529a48b900865b13c849b780a5d854689645d67d491db68b4e8ea3bd46207b11a4f2632d00db19abeb338cda0337a1c4b2876c0a861f49af0560d

Download Submit
memory/2680-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2680-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2680-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/3324-17-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

Filesize
24KB

Download
memory/3324-18-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download