8626010aaeff0f868adac3588509444a9d6d89461e7ec4336e68cffe608975bf

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
30/04/2024, 05:36

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General

Target

2024-04-30_d44dd708ec39c2c34484e8e923850959_cryptolocker.exe
Size

40KB
MD5

d44dd708ec39c2c34484e8e923850959
SHA1

a1ebfce2cc90b279bc2f621b7f1ebb969a08d404
SHA256

8626010aaeff0f868adac3588509444a9d6d89461e7ec4336e68cffe608975bf
SHA512

b9b659bc7fb9812bb1056ae9cf2aebdcbc302061b83f8b033fc28f409f12a8c0b6872ef7c3b7cabfece02261b01a90edae03118536505120f9da56661def5945
SSDEEP

768:bA74zYcgT/Ekd0ryfjPIunqpeNswmT3Hwk:bA6YcA/X6G0W143Qk

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023308-12.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-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	2024-04-30_d44dd708ec39c2c34484e8e923850959_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4388	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 4392 wrote to memory of 4388	4392	2024-04-30_d44dd708ec39c2c34484e8e923850959_cryptolocker.exe	82
PID 4392 wrote to memory of 4388	4392	2024-04-30_d44dd708ec39c2c34484e8e923850959_cryptolocker.exe	82
PID 4392 wrote to memory of 4388	4392	2024-04-30_d44dd708ec39c2c34484e8e923850959_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-04-30_d44dd708ec39c2c34484e8e923850959_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_d44dd708ec39c2c34484e8e923850959_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4392
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4388

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
40KB

MD5
6a832661a2f975a974e424e9b3d5a612

SHA1
abeddf0657cac8025807383cc6ffe749efdc9c7b

SHA256
874dc3d5d4786cbfa06e29a1ca22286ba103aecc27f7b6f851fb098abc83d93a

SHA512
374a19294d07cfcece9f59fb8e572a5b2d1eae7fc93fa902b7f0583a06fde7ac575a0c906b27bd0f6d91fc66c9bef8f7be1d75e791706e8a3e85926fb2a9f8bf

Download Submit
memory/4388-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/4388-23-0x00000000020A0000-0x00000000020A6000-memory.dmp

Filesize
24KB

Download
memory/4392-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4392-8-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4392-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download