5a0ca7744541fbd164cf0535e42e7e82814cd083519a8cd255a386aa373c0ab8

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
10/03/2024, 01:28

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General

Target

2024-03-10_840e84ff15009c2a4ca8787751caa018_cryptolocker.exe
Size

31KB
MD5

840e84ff15009c2a4ca8787751caa018
SHA1

05ccb3829a477d5dc117a902eb62fef49596d9f9
SHA256

5a0ca7744541fbd164cf0535e42e7e82814cd083519a8cd255a386aa373c0ab8
SHA512

dccb181a07b183f00e11fdfff636c8fd9bf875440b9c3aa35c6b0e5540c63c29b8a90b0152f14c45ebd9ac5857970f407bee5465c03af2d98e3238be989ad2a0
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9Zri:b7o/2n1TCraU6GD1a4Xt9Zri

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012251-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2896	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2064	2024-03-10_840e84ff15009c2a4ca8787751caa018_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
2064	2024-03-10_840e84ff15009c2a4ca8787751caa018_cryptolocker.exe
2896	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2064 wrote to memory of 2896	2064	2024-03-10_840e84ff15009c2a4ca8787751caa018_cryptolocker.exe	28
PID 2064 wrote to memory of 2896	2064	2024-03-10_840e84ff15009c2a4ca8787751caa018_cryptolocker.exe	28
PID 2064 wrote to memory of 2896	2064	2024-03-10_840e84ff15009c2a4ca8787751caa018_cryptolocker.exe	28
PID 2064 wrote to memory of 2896	2064	2024-03-10_840e84ff15009c2a4ca8787751caa018_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-10_840e84ff15009c2a4ca8787751caa018_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-10_840e84ff15009c2a4ca8787751caa018_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2064
- 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:2896

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
31KB

MD5
83b6c6798ec8e7048911a99d48c9ca8d

SHA1
a31d9d78d9365bf9773f4ef4de616091e6c521e5

SHA256
3ee81ba74c917b883b10188df161dfac3667967727259c87b1a463e6fb64fe00

SHA512
5b9ef9b1d25ecc2166d715e0e84d925993e0843a4b78b2dc5954600e4ce4315ce1bdf606c0ffa11fe85caed2098a6e6f028fb981784785c92dc880e49a6f6a2b

Download Submit
memory/2064-0-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2064-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2064-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2896-18-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download