472ce7b28e3ffdc67f07b84b3b9b227f05fa813f9363bb976bb8a0ae2f16ba80

Analysis

max time kernel
150s
max time network
155s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29-03-2024 03:00

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General

Target

2024-03-29_6bb0b68534d4d640aa3d03e66841e20d_cryptolocker.exe
Size

73KB
MD5

6bb0b68534d4d640aa3d03e66841e20d
SHA1

6734b7cb14c8aedaf5662abf87356ebab41afa9d
SHA256

472ce7b28e3ffdc67f07b84b3b9b227f05fa813f9363bb976bb8a0ae2f16ba80
SHA512

e004bf776192385702e2097accbfb45c61e1b9b575cdc9b19bd505f988023b607f164f44f624f3ca31887ffdda502b50b97d7cac17ad879b533a0c1643fa55f6
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHMk:X6a+SOtEvwDpjBZYvQd2L

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000e000000012110-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000e000000012110-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2324	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1316	2024-03-29_6bb0b68534d4d640aa3d03e66841e20d_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 1316 wrote to memory of 2324	1316	2024-03-29_6bb0b68534d4d640aa3d03e66841e20d_cryptolocker.exe	28
PID 1316 wrote to memory of 2324	1316	2024-03-29_6bb0b68534d4d640aa3d03e66841e20d_cryptolocker.exe	28
PID 1316 wrote to memory of 2324	1316	2024-03-29_6bb0b68534d4d640aa3d03e66841e20d_cryptolocker.exe	28
PID 1316 wrote to memory of 2324	1316	2024-03-29_6bb0b68534d4d640aa3d03e66841e20d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-29_6bb0b68534d4d640aa3d03e66841e20d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-29_6bb0b68534d4d640aa3d03e66841e20d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1316
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2324

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\asih.exe

Filesize
73KB

MD5
bc5efc22b612dcd03092f33ef867e10a

SHA1
25d759770c074f776886fcc63984a1f33d69f430

SHA256
4b0b0deecceca70c87abf6f3e402c3221429ed64a62e91dd66c153633672cf96

SHA512
e22303ee18b2be6b69e25094576225f609f27cc62338b8386b08818143bad1f3d9a3f9cc7ad825284f1bba67a6e236e8acd0b5a60b573c1e526b2079d65ed000

Download Submit
memory/1316-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1316-1-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/1316-3-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2324-15-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2324-20-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download