ab47e40e1b29a0f27ac4aaffbf2abe2451226795edbdb97adbd23ffcb7d40f1e

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28/03/2024, 00:38

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General

Target

2024-03-28_7819bff8dc5ca4135b3d42ecbbd7a56c_cryptolocker.exe
Size

387KB
MD5

7819bff8dc5ca4135b3d42ecbbd7a56c
SHA1

c48390bda53e6ae4581fc5db41fb61e73eb451a2
SHA256

ab47e40e1b29a0f27ac4aaffbf2abe2451226795edbdb97adbd23ffcb7d40f1e
SHA512

1bb10c160560d363fc6eb659419dd95c658e493d3bb45d3c3611a0d4d32de59526f6defaa1144caabdb9f36f688ca7ae8605a39b4fdc181dd4891cc57a0d54d7
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXd:nnOflT/ZFIjBz3xjTxynGUOUhXd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012240-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3052	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1720	2024-03-28_7819bff8dc5ca4135b3d42ecbbd7a56c_cryptolocker.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 3052	1720	2024-03-28_7819bff8dc5ca4135b3d42ecbbd7a56c_cryptolocker.exe	28
PID 1720 wrote to memory of 3052	1720	2024-03-28_7819bff8dc5ca4135b3d42ecbbd7a56c_cryptolocker.exe	28
PID 1720 wrote to memory of 3052	1720	2024-03-28_7819bff8dc5ca4135b3d42ecbbd7a56c_cryptolocker.exe	28
PID 1720 wrote to memory of 3052	1720	2024-03-28_7819bff8dc5ca4135b3d42ecbbd7a56c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-28_7819bff8dc5ca4135b3d42ecbbd7a56c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-28_7819bff8dc5ca4135b3d42ecbbd7a56c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3052

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
387KB

MD5
7ebc17943691619e15c998cedac2047d

SHA1
fa55c8c19e056b389c340fa8ad90c84f6f54843f

SHA256
f9187c784a21a127b8182ec2f70daeec70841bfb35c0bc516c21b5bef5473d8f

SHA512
298b66e41f18589dbbcca2cda61ccb53a65059ee54864d6cdd735ce9b2c9e045213ba8a193a48da8f7a530a28bcaab34296ceec8b176677137f8932f6c191c32

Download Submit
memory/1720-0-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/1720-2-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/1720-1-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/3052-15-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download