588b27ea79d8d6684c3a173a30e3f4aa2deb3a6f1a0fbc99de8e882e2983eaec

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21/02/2024, 20:23

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-02-21_0a63126f4b33c726c34bc5cbfc756420_cryptolocker.exe
Size

32KB
MD5

0a63126f4b33c726c34bc5cbfc756420
SHA1

97f6a6784fc2782fd7b16ff42a39b84d93022e3c
SHA256

588b27ea79d8d6684c3a173a30e3f4aa2deb3a6f1a0fbc99de8e882e2983eaec
SHA512

9cc7cc8268fd2769d2bd581783362cdb1bda8c51c8ec473f7ea474dc57f23307055b32a696752d962b4bfd847e03ce6329dc367e647665b341559840243ea1ab
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9/B+1MI:b7o/2n1TCraU6GD1a4Xt9g

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012262-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2588	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
1908	2024-02-21_0a63126f4b33c726c34bc5cbfc756420_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
1908	2024-02-21_0a63126f4b33c726c34bc5cbfc756420_cryptolocker.exe
2588	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1908 wrote to memory of 2588	1908	2024-02-21_0a63126f4b33c726c34bc5cbfc756420_cryptolocker.exe	28
PID 1908 wrote to memory of 2588	1908	2024-02-21_0a63126f4b33c726c34bc5cbfc756420_cryptolocker.exe	28
PID 1908 wrote to memory of 2588	1908	2024-02-21_0a63126f4b33c726c34bc5cbfc756420_cryptolocker.exe	28
PID 1908 wrote to memory of 2588	1908	2024-02-21_0a63126f4b33c726c34bc5cbfc756420_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-21_0a63126f4b33c726c34bc5cbfc756420_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_0a63126f4b33c726c34bc5cbfc756420_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1908
- 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:2588

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

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\rewok.exe

Filesize
32KB

MD5
1a90dae58302166e4a5b57e8272eb4b3

SHA1
68e16ab85f03e9baa5c568116057aa039030912d

SHA256
c871dc510e06faa5eb242e772ef3eea5f7885ff999b56f16354b9a94bf4bb054

SHA512
4b2fa3b82aad7341f331f1e1c7664198b059e805e999d51fd2691bea6e2455d8600177f5c2f0ee4e804ae4a4b3ce75fd2982d4eff4a87530de60ae70e59f549c

Download Submit
memory/1908-0-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/1908-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1908-2-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download