2f7f76eeb8fb696ace7cc417c67604731dd3ae827900b045c8b1204a49764d92

Analysis

max time kernel
150s
max time network
157s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/04/2024, 08:45

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General

Target

2024-04-09_b82e9dea630e76ffeb35a7abcdc905b4_cryptolocker.exe
Size

42KB
MD5

b82e9dea630e76ffeb35a7abcdc905b4
SHA1

fa8094a9503474a07b033a52e045fabc843dcd89
SHA256

2f7f76eeb8fb696ace7cc417c67604731dd3ae827900b045c8b1204a49764d92
SHA512

662bb9ba1e078d74380c0a45ddaa805c5646fb3d2e5c7e35e81932d9140af0d52dc653b1d94e9b6631bfadc4e261bef6746b62f33d9612a78a4da2b0e43aa8e1
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMRYtsI:bc/y2lkF0+BlJ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012265-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2996	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
1784	2024-04-09_b82e9dea630e76ffeb35a7abcdc905b4_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
1784	2024-04-09_b82e9dea630e76ffeb35a7abcdc905b4_cryptolocker.exe
2996	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1784 wrote to memory of 2996	1784	2024-04-09_b82e9dea630e76ffeb35a7abcdc905b4_cryptolocker.exe	28
PID 1784 wrote to memory of 2996	1784	2024-04-09_b82e9dea630e76ffeb35a7abcdc905b4_cryptolocker.exe	28
PID 1784 wrote to memory of 2996	1784	2024-04-09_b82e9dea630e76ffeb35a7abcdc905b4_cryptolocker.exe	28
PID 1784 wrote to memory of 2996	1784	2024-04-09_b82e9dea630e76ffeb35a7abcdc905b4_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-09_b82e9dea630e76ffeb35a7abcdc905b4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-09_b82e9dea630e76ffeb35a7abcdc905b4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1784
- 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:2996

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
42KB

MD5
4fcb2010e66f9c907f3e02240572adff

SHA1
cb6eebcff54156f4bed99189d5cb389dd096be5c

SHA256
77ea3986bd126277037e9237bc8a0ad38c6093415eda920e2ce1a94f5efc3c9d

SHA512
e870e314afd470239bb43239c459d39f7a225531199dd8105f15e962583f40f439f97b614ac7c9df2f97ab8e45f562643ef1c09594ef8a9608822e3eca2419b5

Download Submit
memory/1784-0-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/1784-1-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/1784-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2996-23-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download