0523d47948cc5d7d36dd48377f15e983e9cfb9ae5a0721e5d113e44f0c65a892

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
21/05/2024, 14:28

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General

Target

2024-05-21_7fffafab00305551a368d46462bc9e1b_cryptolocker.exe
Size

37KB
MD5

7fffafab00305551a368d46462bc9e1b
SHA1

78031ed80083693342ba5e638040e6169a1292e2
SHA256

0523d47948cc5d7d36dd48377f15e983e9cfb9ae5a0721e5d113e44f0c65a892
SHA512

d1f5dd1c2c10347fab8eb92091e5a0f3d3089fc4f80cc9c62cdb8ae7164544c63af4c904d8db424dc54a3c6447a7581b9b34f57eec4cd57a6cf857546ecda356
SSDEEP

768:fTz7y3lhsT+hs1SQtOOtEvwDpjfAu9+4h6o:fT+hsMQMOtEvwDpjoIHh6o

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000141c0-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000141c0-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2336	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2148	2024-05-21_7fffafab00305551a368d46462bc9e1b_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 2148 wrote to memory of 2336	2148	2024-05-21_7fffafab00305551a368d46462bc9e1b_cryptolocker.exe	28
PID 2148 wrote to memory of 2336	2148	2024-05-21_7fffafab00305551a368d46462bc9e1b_cryptolocker.exe	28
PID 2148 wrote to memory of 2336	2148	2024-05-21_7fffafab00305551a368d46462bc9e1b_cryptolocker.exe	28
PID 2148 wrote to memory of 2336	2148	2024-05-21_7fffafab00305551a368d46462bc9e1b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-21_7fffafab00305551a368d46462bc9e1b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-21_7fffafab00305551a368d46462bc9e1b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2148
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2336

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
38KB

MD5
41f548a10665b6bc845b1c61a45513ca

SHA1
15b4f12004889ab21d4d90a95455fcae1bfb3e9d

SHA256
dae75750c0de93376d9adc6c4e2713d8b56ce4ea10eb157a6165fcec9693e65a

SHA512
386b630bd2a860a78594d526790768325c0e551f9f0198f3e55a086aa2c4d3ac5f874814c569080964ee3bc169bdeeb1aa507354a242d813eac312e44298a337

Download Submit
memory/2148-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2148-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2148-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2336-15-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download