36cd73b201a2049e42601becf65aeb2366411b755c8f016b96d4a44d09b11d73

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
23/04/2024, 05:43

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General

Target

2024-04-23_f08f5b2185b6f06dc0838229a2fb895b_cryptolocker.exe
Size

84KB
MD5

f08f5b2185b6f06dc0838229a2fb895b
SHA1

3c1400d35bee799cff01a66504ae82e7b73d2e74
SHA256

36cd73b201a2049e42601becf65aeb2366411b755c8f016b96d4a44d09b11d73
SHA512

3315e69311a252ab8b8ab20be90ae3b573d1730fc3ff8ca5df3fd7dcf044819701dd230c6e778a730dc270bcded8767c0b38bb4f9eacce913579f5fd3cbc4cd8
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5VccPtNw5CS95yFPnYg:V6QFElP6n+gMQMOtEvwDpjyaLccVNl6g

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224c-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224c-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2940	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1540	2024-04-23_f08f5b2185b6f06dc0838229a2fb895b_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 1540 wrote to memory of 2940	1540	2024-04-23_f08f5b2185b6f06dc0838229a2fb895b_cryptolocker.exe	28
PID 1540 wrote to memory of 2940	1540	2024-04-23_f08f5b2185b6f06dc0838229a2fb895b_cryptolocker.exe	28
PID 1540 wrote to memory of 2940	1540	2024-04-23_f08f5b2185b6f06dc0838229a2fb895b_cryptolocker.exe	28
PID 1540 wrote to memory of 2940	1540	2024-04-23_f08f5b2185b6f06dc0838229a2fb895b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-23_f08f5b2185b6f06dc0838229a2fb895b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-23_f08f5b2185b6f06dc0838229a2fb895b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1540
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2940

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
85KB

MD5
bcf0aaa576cbdc10843c72c073e33bf4

SHA1
f6086522c5c03afd5fc2a6a5166dbab2f58d3881

SHA256
9c710c83308a5c891589dd2f52f4b21b5e055bf8d599feae08f775ae15a8feba

SHA512
1a9389277bb81d24b244fde118bae8e2d4b1640941320ec91c9148b133eaca57211de1d9ab4d4a3c7937d0a5410de4afd0686342ed18f6a83aafa7544634216a

Download Submit
memory/1540-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1540-1-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/1540-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2940-15-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download