4059e1084b7e064ba456a1d6220d690b58ed709ce26dbda959a8f2124459e089

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
07/03/2024, 23:39

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General

Target

2024-03-07_b5ac90d675555e9298fe451d411b9f5a_cryptolocker.exe
Size

40KB
MD5

b5ac90d675555e9298fe451d411b9f5a
SHA1

a32e5b15a80eb24d8e6f3477d1d3b17b39ba6532
SHA256

4059e1084b7e064ba456a1d6220d690b58ed709ce26dbda959a8f2124459e089
SHA512

cd16a202148331d0e5d2fe1a14a2b971a6b4ddf199800d32e2bdd800919acc7b45ce9b4991df25ea32f156a092961785c0ebfc530e9b94755e7462e8c86b932a
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4REL+cc660SV:vj+jsMQMOtEvwDpj5HW5E

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000013a06-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000013a06-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1728	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2844	2024-03-07_b5ac90d675555e9298fe451d411b9f5a_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 2844 wrote to memory of 1728	2844	2024-03-07_b5ac90d675555e9298fe451d411b9f5a_cryptolocker.exe	28
PID 2844 wrote to memory of 1728	2844	2024-03-07_b5ac90d675555e9298fe451d411b9f5a_cryptolocker.exe	28
PID 2844 wrote to memory of 1728	2844	2024-03-07_b5ac90d675555e9298fe451d411b9f5a_cryptolocker.exe	28
PID 2844 wrote to memory of 1728	2844	2024-03-07_b5ac90d675555e9298fe451d411b9f5a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-07_b5ac90d675555e9298fe451d411b9f5a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-07_b5ac90d675555e9298fe451d411b9f5a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2844
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1728

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\misid.exe

Filesize
40KB

MD5
c0d1fe3d95e9faa8fe8b4fc47bdb8a12

SHA1
2fc9ee89d13b7016aa96ce6a7ce3f6c8d2c8bba8

SHA256
63bf32cba5389fb568bbe9e294502f2510413294cf784a1ae8a02ad1daaf0d73

SHA512
4877b55534f3806979f79962a0ea03ae35f7a16943941ed10413d97c95410b5a0ef37769c557e703a07fa6cfe7fad3a2c2aeb871769ba5af96857d9b495cecfe

Download Submit
memory/1728-15-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/1728-17-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2844-0-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2844-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2844-1-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download