73351eb7bbd2d1e8c1cbd48fb3b4d98490f2d0a11a4f6bcffec84331e3bbc3f0

Analysis

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

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
20/02/2024, 09:38

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General

Target

2024-02-20_8e34d18d352714b803a674474c12543c_cryptolocker.exe
Size

44KB
MD5

8e34d18d352714b803a674474c12543c
SHA1

ee2c1924f241f06f4371ebcb4be48e53ae7d8429
SHA256

73351eb7bbd2d1e8c1cbd48fb3b4d98490f2d0a11a4f6bcffec84331e3bbc3f0
SHA512

9cfbae0a788c70941130ba6247ca2cc533d3c9ebb09346b152a16b44d32b6cb091a50a8383638ed96879b44795b494275d179e9429dbe10a260155321fbf89d8
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMphedQ:bc/y2lkF0+BeX

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012251-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2404	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
1708	2024-02-20_8e34d18d352714b803a674474c12543c_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
1708	2024-02-20_8e34d18d352714b803a674474c12543c_cryptolocker.exe
2404	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1708 wrote to memory of 2404	1708	2024-02-20_8e34d18d352714b803a674474c12543c_cryptolocker.exe	28
PID 1708 wrote to memory of 2404	1708	2024-02-20_8e34d18d352714b803a674474c12543c_cryptolocker.exe	28
PID 1708 wrote to memory of 2404	1708	2024-02-20_8e34d18d352714b803a674474c12543c_cryptolocker.exe	28
PID 1708 wrote to memory of 2404	1708	2024-02-20_8e34d18d352714b803a674474c12543c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-20_8e34d18d352714b803a674474c12543c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_8e34d18d352714b803a674474c12543c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1708
- 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:2404

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
44KB

MD5
3b41d5faa72e2929738c35b6eb406ac6

SHA1
f4087fcee9e23d49f899b96ddc49ad8a9568daa6

SHA256
cbb339323db0750da5f8ce7e257d03a46d85a805eee15affb8690e0647544a7e

SHA512
8a14957298bfe9bdde28f5403da3eacd3a395022368b76f7f84da65da7bebd531c44a13fe5999ae7a7fe533176fe30b8013de9b1e96d45dd33a3ad2bbfed8038

Download Submit
memory/1708-0-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1708-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1708-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2404-23-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download