497342c3405f476b49a63d8466ae7dcafe8bb316d36d963566bf6cdefeed1030

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18/02/2024, 08:43

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General

Target

2024-02-18_8a33a713ef97774a54a367aa6e662650_cryptolocker.exe
Size

32KB
MD5

8a33a713ef97774a54a367aa6e662650
SHA1

751502c495215762ec251fff98261107c10d09bc
SHA256

497342c3405f476b49a63d8466ae7dcafe8bb316d36d963566bf6cdefeed1030
SHA512

04cf2e059710d12b63284dc7136ae3ca736be4bee11a848125a8f3d0d6560e88282a1aaa9ebef693c3c52a428e106ace52e07d829243097031b51b65034b9cd9
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9/B1RwFtx:b7o/2n1TCraU6GD1a4Xt9bRwJ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012247-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2664	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
1736	2024-02-18_8a33a713ef97774a54a367aa6e662650_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
1736	2024-02-18_8a33a713ef97774a54a367aa6e662650_cryptolocker.exe
2664	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 2664	1736	2024-02-18_8a33a713ef97774a54a367aa6e662650_cryptolocker.exe	28
PID 1736 wrote to memory of 2664	1736	2024-02-18_8a33a713ef97774a54a367aa6e662650_cryptolocker.exe	28
PID 1736 wrote to memory of 2664	1736	2024-02-18_8a33a713ef97774a54a367aa6e662650_cryptolocker.exe	28
PID 1736 wrote to memory of 2664	1736	2024-02-18_8a33a713ef97774a54a367aa6e662650_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-18_8a33a713ef97774a54a367aa6e662650_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_8a33a713ef97774a54a367aa6e662650_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1736
- 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:2664

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
32KB

MD5
b45bb0b9befbfa439a25ba1a109ea1de

SHA1
2154b5ffa6d2bbc105bd44ee32528cf25dd35bfc

SHA256
fe7204b95f0575b1b329f65a73a85359d06f8c6bf1495afa09c75e7643e682a8

SHA512
a9173b2c45977767117196da2a3681d8f08612ae884db159742538883236f697b4421bb82b901db2515c33cea5f3ecb62e4a04fce7d20926aab8d333f998a443

Download Submit
memory/1736-0-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/1736-2-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/1736-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2664-20-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download