0a9ed95dd8528834238f3f34b9fba863079ac4f51bc7c3198fddb1b10a32fcf2

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
26-04-2024 23:28

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-04-26_b8b024ebee3091e7c110192cb31533c9_cryptolocker.exe
Size

95KB
MD5

b8b024ebee3091e7c110192cb31533c9
SHA1

8b0ba9253db9385653f37bc88048c93616ee803d
SHA256

0a9ed95dd8528834238f3f34b9fba863079ac4f51bc7c3198fddb1b10a32fcf2
SHA512

d978ea29c0645eb8db2bc7cce9f4d6ce28e0c05dc3a77a63caba9d2b335b2d4d46decfd89d0337716960f4860861b6b3a6f8e0414ecccddfe9440bbd3e279603
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwMgYj:V6a+pOtEvwDpjtzI

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

2680 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-04-26_b8b024ebee3091e7c110192cb31533c9_cryptolocker.exe

pid process

936 2024-04-26_b8b024ebee3091e7c110192cb31533c9_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2680	asih.exe

pid	process
936	2024-04-26_b8b024ebee3091e7c110192cb31533c9_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-04-26_b8b024ebee3091e7c110192cb31533c9_cryptolocker.exe

description	pid	process	target process
PID 936 wrote to memory of 2680	936	2024-04-26_b8b024ebee3091e7c110192cb31533c9_cryptolocker.exe	asih.exe
PID 936 wrote to memory of 2680	936	2024-04-26_b8b024ebee3091e7c110192cb31533c9_cryptolocker.exe	asih.exe
PID 936 wrote to memory of 2680	936	2024-04-26_b8b024ebee3091e7c110192cb31533c9_cryptolocker.exe	asih.exe
PID 936 wrote to memory of 2680	936	2024-04-26_b8b024ebee3091e7c110192cb31533c9_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-04-26_b8b024ebee3091e7c110192cb31533c9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-26_b8b024ebee3091e7c110192cb31533c9_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:936

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:2680

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\asih.exe
Filesize
95KB

MD5
bb040347ad0c3ff7eae3a4fca46b3d3d

SHA1
5d451ed0010fb0089cf7df50668e95a039829091

SHA256
7dd0864a42d0033b4129a9a716afe7e4c24208a616c78d02639aad8122d1cc00

SHA512
91c39e6b1d362078492c5797dca6054cca6ad550f9987beee2eeba2edd2a1e7fa4d6e3868ef98ae743203bce22188249b48af0dcf239a32bfcb399e50c51f017

Download Submit
memory/936-0-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/936-1-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/936-8-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2680-15-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2680-22-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download