ad5d88f084f6d9406706dc63843355f72f23db44c5198b1226256846a747abef

Analysis

max time kernel
150s
max time network
141s
platform
windows7_x64
resource
win7-20240319-en
resource tags

arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
submitted
18/04/2024, 08:29

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General

Target

2024-04-18_5f79b904f3c933ba01f0942611170409_cryptolocker.exe
Size

41KB
MD5

5f79b904f3c933ba01f0942611170409
SHA1

52ddf3b9df48fabdc01ccffd1b1b2061af895afe
SHA256

ad5d88f084f6d9406706dc63843355f72f23db44c5198b1226256846a747abef
SHA512

56ce8e137752166dd02257faa4fc8ab6cc208b25218a3c5388db46c02571c7e4be5cef85f9a9277662ae45d23d1c7e78f849331649e04e2384ca93fac3c0bb2c
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcU:X6QFElP6n+gJQMOtEvwDpjBmzDkWU

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000121c5-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000121c5-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2104	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1236	2024-04-18_5f79b904f3c933ba01f0942611170409_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 1236 wrote to memory of 2104	1236	2024-04-18_5f79b904f3c933ba01f0942611170409_cryptolocker.exe	28
PID 1236 wrote to memory of 2104	1236	2024-04-18_5f79b904f3c933ba01f0942611170409_cryptolocker.exe	28
PID 1236 wrote to memory of 2104	1236	2024-04-18_5f79b904f3c933ba01f0942611170409_cryptolocker.exe	28
PID 1236 wrote to memory of 2104	1236	2024-04-18_5f79b904f3c933ba01f0942611170409_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-18_5f79b904f3c933ba01f0942611170409_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-18_5f79b904f3c933ba01f0942611170409_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1236
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2104

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
41KB

MD5
8ba74f19e2f1f64a899edd5449ec2b35

SHA1
3353a3526cf5ffa7f427a3c6fb74f7d7586bb69f

SHA256
8bd754b653bd8f8d9e9401d885b4e5f4fe6a21e98078714fb676d8a4fe62c9ee

SHA512
53bd074ac98cf21469b9db1db610d53983a48c60e60c5baf1f1507026d33018fb4eeb721a18452a6fd43be8ad17a2f81f48896d0d796b96bb4566593c69313ac

Download Submit
memory/1236-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1236-1-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/1236-7-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2104-16-0x0000000001CD0000-0x0000000001CD6000-memory.dmp

Filesize
24KB

Download
memory/2104-15-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download