317cf25f20bcc01948ea8c7213d27944445e9400d0183f8ad192ac0ece7e8aee

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
25/03/2024, 19:52

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-03-25_868785cb93141ffc6864556e987f8bda_cryptolocker.exe
Size

387KB
MD5

868785cb93141ffc6864556e987f8bda
SHA1

0325c200f759d6888c41ecde160ac056c838fb44
SHA256

317cf25f20bcc01948ea8c7213d27944445e9400d0183f8ad192ac0ece7e8aee
SHA512

6c2a3454bff1de5d0d3154f7bd5e8ee9b06403c8a294e951ee1e1cddb7874f4ba9c77a7643dd404a40e7de56f94cac6de3bcaf097713a9965b8724a60240aa07
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXM:nnOflT/ZFIjBz3xjTxynGUOUhXM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001e59e-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-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	2024-03-25_868785cb93141ffc6864556e987f8bda_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2068	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 1988 wrote to memory of 2068	1988	2024-03-25_868785cb93141ffc6864556e987f8bda_cryptolocker.exe	87
PID 1988 wrote to memory of 2068	1988	2024-03-25_868785cb93141ffc6864556e987f8bda_cryptolocker.exe	87
PID 1988 wrote to memory of 2068	1988	2024-03-25_868785cb93141ffc6864556e987f8bda_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-03-25_868785cb93141ffc6864556e987f8bda_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-25_868785cb93141ffc6864556e987f8bda_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1988
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2068

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

Loading Replay Monitor...

Downloads

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

Filesize
387KB

MD5
cfddd519ae58675e0c5f4b6ca013920c

SHA1
183fc397caabb2bbb1fa24767572af2ebbd9678f

SHA256
34ba3de87ea288bda9fe907175aa595095abf9990a3e69766ed6e32dafb2aaa1

SHA512
db4aa10768e3c04b365607e688a81ed437c69dafd6d3f356876e5689d77bdb3a3e2f4735ecc18203f3892eb336b948fc2b60fd678f00f61c96ae5418239d3d8e

Download Submit
memory/1988-0-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/1988-1-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/1988-2-0x00000000022C0000-0x00000000022C6000-memory.dmp

Filesize
24KB

Download
memory/2068-17-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/2068-19-0x0000000002010000-0x0000000002016000-memory.dmp

Filesize
24KB

Download