e97281686fa1cdeee46c2ca145c0c577d8e4c49b32e4f85e0d4753084eecd4b4

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05/03/2024, 05:31

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General

Target

2024-03-05_e7e68735d1fc147b4ac985a66b8d7e8c_cryptolocker.exe
Size

39KB
MD5

e7e68735d1fc147b4ac985a66b8d7e8c
SHA1

5bbb7b9bf254bf08411b09a2e6190db5fbae3bc2
SHA256

e97281686fa1cdeee46c2ca145c0c577d8e4c49b32e4f85e0d4753084eecd4b4
SHA512

7b95bc910bbba846666f7069bbf1fa2653de039b80ffd8be7d285a91331f191c11ee1028d2caa4ee2ef75324d7bdb63fdc2b9d54eaf8f2f2fcced111323b075c
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMvcWn:bc/y2lkF0+B2d

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001224e-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2544	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2252	2024-03-05_e7e68735d1fc147b4ac985a66b8d7e8c_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
2252	2024-03-05_e7e68735d1fc147b4ac985a66b8d7e8c_cryptolocker.exe
2544	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 2544	2252	2024-03-05_e7e68735d1fc147b4ac985a66b8d7e8c_cryptolocker.exe	28
PID 2252 wrote to memory of 2544	2252	2024-03-05_e7e68735d1fc147b4ac985a66b8d7e8c_cryptolocker.exe	28
PID 2252 wrote to memory of 2544	2252	2024-03-05_e7e68735d1fc147b4ac985a66b8d7e8c_cryptolocker.exe	28
PID 2252 wrote to memory of 2544	2252	2024-03-05_e7e68735d1fc147b4ac985a66b8d7e8c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-05_e7e68735d1fc147b4ac985a66b8d7e8c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-05_e7e68735d1fc147b4ac985a66b8d7e8c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2252
- 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:2544

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
39KB

MD5
9ed358ce35e8e4ab8cede623ccfcbca1

SHA1
11b5ec53ccc4cbcdca1678b5c1f0706376de46d3

SHA256
6a93bb68f26ddf41964a569f5deb8fb94d0aa7ab22ab64b6972422a25e5a294e

SHA512
58531d20f59c4f8ad9feb789909ae6f9d2bbb2501a59b443b685ba68e7db50a75504ea630e84e3a39d095d57d4467cfc71ed2ef86d0f4520d85d3ac0c64c0f6a

Download Submit
memory/2252-0-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2252-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2252-2-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2544-21-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download