8386743c8c51fe2aaff0c11bd0b47ee54a42f0e4510e2853f43547f798602077

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
30-04-2024 12:33

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General

Target

2024-04-30_30a8b65216b63728f9e97b1a33ecd63d_cryptolocker.exe
Size

43KB
MD5

30a8b65216b63728f9e97b1a33ecd63d
SHA1

b360b1997ec174eac75cc67b00ebe5461c6f3132
SHA256

8386743c8c51fe2aaff0c11bd0b47ee54a42f0e4510e2853f43547f798602077
SHA512

d786b47c6494cee72829af4256541efed6e110d464ef105b84a80529beb48e88a2e9a3bb8afe95edb2ea92174e87c7e4242372654b9023d3f739532b5a49161f
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMphqp:bc/y2lkF0+Beqp

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a0000000144e9-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2148	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2932	2024-04-30_30a8b65216b63728f9e97b1a33ecd63d_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
2932	2024-04-30_30a8b65216b63728f9e97b1a33ecd63d_cryptolocker.exe
2148	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2932 wrote to memory of 2148	2932	2024-04-30_30a8b65216b63728f9e97b1a33ecd63d_cryptolocker.exe	28
PID 2932 wrote to memory of 2148	2932	2024-04-30_30a8b65216b63728f9e97b1a33ecd63d_cryptolocker.exe	28
PID 2932 wrote to memory of 2148	2932	2024-04-30_30a8b65216b63728f9e97b1a33ecd63d_cryptolocker.exe	28
PID 2932 wrote to memory of 2148	2932	2024-04-30_30a8b65216b63728f9e97b1a33ecd63d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-30_30a8b65216b63728f9e97b1a33ecd63d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_30a8b65216b63728f9e97b1a33ecd63d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2932
- 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:2148

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
43KB

MD5
93db196f0a1ef1c6f60a3942ebaa6a33

SHA1
ae0d9b9a720ca7229461f79e08d6bea638218635

SHA256
b677485e6c3050f42d815ea23ff89335356c0ec0f0b227084891b8e5b6843200

SHA512
5316f6f71e368f73b44ea9fc5133159bcd33383a008b9187c6646345515dfdccb5348d2600098621e30643e4855eb3e10a1f1f0365cb8333bc587387bb2db82b

Download Submit
memory/2148-23-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download
memory/2932-0-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2932-8-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2932-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download