9002988006c12668209000a3f01f4a318c5b4c89ee3e8b6c9fcaaa9ff4c07fe4

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
19-04-2024 21:33

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General

Target

2024-04-19_aeae4975f4f1a0d061312ebc860467f7_cryptolocker.exe
Size

31KB
MD5

aeae4975f4f1a0d061312ebc860467f7
SHA1

ad074b48987a475333f3f04f6e65f7a1c59f2874
SHA256

9002988006c12668209000a3f01f4a318c5b4c89ee3e8b6c9fcaaa9ff4c07fe4
SHA512

54b18bcd363925df3d59bd16b7613e89d056f24d73a3e4b0a40538354e30943f484a4b29cf7aedee6aa13b7cd9619ce5812626eb2af196922a330ffbe2a0c782
SSDEEP

384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGO7:bG74zYcgT/Ekd0ryfjB

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/2652-0-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000900000002340a-13.dat	CryptoLocker_rule2
behavioral2/memory/2652-18-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4408-17-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4408-27-0x0000000008000000-0x000000000800A000-memory.dmp	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-1-5-21-1132431369-515282257-1998160155-1000\Control Panel\International\Geo\Nation	2024-04-19_aeae4975f4f1a0d061312ebc860467f7_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4408	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 2652 wrote to memory of 4408	2652	2024-04-19_aeae4975f4f1a0d061312ebc860467f7_cryptolocker.exe	86
PID 2652 wrote to memory of 4408	2652	2024-04-19_aeae4975f4f1a0d061312ebc860467f7_cryptolocker.exe	86
PID 2652 wrote to memory of 4408	2652	2024-04-19_aeae4975f4f1a0d061312ebc860467f7_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-04-19_aeae4975f4f1a0d061312ebc860467f7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-19_aeae4975f4f1a0d061312ebc860467f7_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2652
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4408

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
31KB

MD5
fd8b9955ecf807611ad39a263563a0fe

SHA1
cf1605386e64ea29d91d2469215554e9d5c319dd

SHA256
cc9344f101465433a0f0f0e4205a9984edd395309d32d236c679fc7630afa9db

SHA512
c4a41e9603c8f188deeb7da64473ff0e7f282691407ce6a2288f510cf965b126660f464f9214fb035c991e6af8aa8607e75c8852505d6e571f68b5b33c1bea9b

Download Submit
memory/2652-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2652-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2652-3-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/2652-2-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2652-18-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/4408-17-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/4408-21-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/4408-20-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/4408-27-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download