56b5225093bbafdf93362003e6fff2e185da275fc1ec605e2f13344721f6ed03

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
14/02/2024, 03:44

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General

Target

2024-02-14_4667fcf3c31463ba8fed757cbbee9634_cryptolocker.exe
Size

32KB
MD5

4667fcf3c31463ba8fed757cbbee9634
SHA1

8f70cb16c20a217449f305afd5da281f2c2f32ef
SHA256

56b5225093bbafdf93362003e6fff2e185da275fc1ec605e2f13344721f6ed03
SHA512

f16cd7d0aaa9698c12f4e741c65770c94c55a1aaecde81d9ac04a2cb0632de3e4d8d1f55972e7a93caf92a059b4619f3ecd461a451d89589d7aa512374ab8acb
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9/B1RwFtzxt+:b7o/2n1TCraU6GD1a4Xt9bRwrb+

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000122d5-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2492	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2528	2024-02-14_4667fcf3c31463ba8fed757cbbee9634_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2528	2024-02-14_4667fcf3c31463ba8fed757cbbee9634_cryptolocker.exe
2492	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 2492	2528	2024-02-14_4667fcf3c31463ba8fed757cbbee9634_cryptolocker.exe	28
PID 2528 wrote to memory of 2492	2528	2024-02-14_4667fcf3c31463ba8fed757cbbee9634_cryptolocker.exe	28
PID 2528 wrote to memory of 2492	2528	2024-02-14_4667fcf3c31463ba8fed757cbbee9634_cryptolocker.exe	28
PID 2528 wrote to memory of 2492	2528	2024-02-14_4667fcf3c31463ba8fed757cbbee9634_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-14_4667fcf3c31463ba8fed757cbbee9634_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_4667fcf3c31463ba8fed757cbbee9634_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2492

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\rewok.exe

Filesize
33KB

MD5
e08301f4e35eaeba6e073fbd04114bf0

SHA1
1fa8a57075f933e61810090c17028020d1e8357a

SHA256
4d63928b304f4d6f9baccb816124b420e5180bd2124bfcf98c0cba853350eecb

SHA512
588ebe7697f566abcb490b64323e0187beb8d9fdf885d6ce7c824708446ca27f59f1fad8849f6af29773a49b3818d1c7dde0f399f962076e069b55595ea9dc19

Download Submit
memory/2492-16-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download
memory/2528-0-0x00000000001F0000-0x00000000001F6000-memory.dmp

Filesize
24KB

Download
memory/2528-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2528-2-0x00000000001F0000-0x00000000001F6000-memory.dmp

Filesize
24KB

Download