44c333534980e561f853b50225f51d4ba3faa6bd90f424f38986b52d4657cdd8

Analysis

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

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
03/05/2024, 15:29

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General

Target

2024-05-03_986857b6e5dd207bdae00aa89bc35c9c_cryptolocker.exe
Size

37KB
MD5

986857b6e5dd207bdae00aa89bc35c9c
SHA1

5abc792fa112537b55a94748df0b5774da8e05f7
SHA256

44c333534980e561f853b50225f51d4ba3faa6bd90f424f38986b52d4657cdd8
SHA512

6a2bdfb4ac75a3ab9a27a2c3398d2b63f84f2e59b3ef9bc8a9e47496b39228925ea6bb8415f918e363ecc4f10a3b48170418d9b228e49bc69ac19fe7537acb2a
SSDEEP

768:b7o/2n1TCraU6GD1a4Xt9bRU6zA6o36mI1k:bc/y2lLRU6zA6qp

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012248-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1788	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
912	2024-05-03_986857b6e5dd207bdae00aa89bc35c9c_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
912	2024-05-03_986857b6e5dd207bdae00aa89bc35c9c_cryptolocker.exe
1788	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 912 wrote to memory of 1788	912	2024-05-03_986857b6e5dd207bdae00aa89bc35c9c_cryptolocker.exe	28
PID 912 wrote to memory of 1788	912	2024-05-03_986857b6e5dd207bdae00aa89bc35c9c_cryptolocker.exe	28
PID 912 wrote to memory of 1788	912	2024-05-03_986857b6e5dd207bdae00aa89bc35c9c_cryptolocker.exe	28
PID 912 wrote to memory of 1788	912	2024-05-03_986857b6e5dd207bdae00aa89bc35c9c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-03_986857b6e5dd207bdae00aa89bc35c9c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-03_986857b6e5dd207bdae00aa89bc35c9c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:912
- 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:1788

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
37KB

MD5
2810f85a734549e387a0412f0257d8f7

SHA1
68c8bc6ca603fd0738a3173dde90acccff204102

SHA256
a48b3559abe53a7548c40be796f2405cb12dad1b955fcfdd2d1a04bb3089848a

SHA512
3cf3178307c394eb7127095e18825c8721645ae07f5d0caf1b9bfc3cacc1ad5cc10e2429586b6edef9d378d6a1928bbe2a71b9c83d1931780058a9143a4bf99e

Download Submit
memory/912-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/912-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/912-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download