6c59b4a35265a9c3cd81fc506205fbe681dbe34813bf7c8b5dcebc014e4423ed

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
25-01-2024 15:52

Target

2024-01-25_df08ab17a14bd1fa5f17a12c7b39fee0_cryptolocker.exe
Size

43KB
MD5

df08ab17a14bd1fa5f17a12c7b39fee0
SHA1

fcc34cba5d7ee190354b3d012bdc523f8b024401
SHA256

6c59b4a35265a9c3cd81fc506205fbe681dbe34813bf7c8b5dcebc014e4423ed
SHA512

b9f131f3b31c4bc58a292c8ea56cbe79f0df3dbf784590a4792b7cb52861d637176bcb7cd7d4d7923e13b1ac8c4d6bf57d4dc3b1479ee530e159531ab4160500
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMRqmz4kmmI3:bc/y2lkF0+BjjII3

Score

9^/10

Detection of CryptoLocker Variants 2 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\rewok.exe	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\rewok.exe	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

Processes:

rewok.exe

pid process

3028 rewok.exe
Loads dropped DLL 1 IoCs

Processes:

2024-01-25_df08ab17a14bd1fa5f17a12c7b39fee0_cryptolocker.exe

pid process

2860 2024-01-25_df08ab17a14bd1fa5f17a12c7b39fee0_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

Processes:

2024-01-25_df08ab17a14bd1fa5f17a12c7b39fee0_cryptolocker.exerewok.exe

pid process

2860 2024-01-25_df08ab17a14bd1fa5f17a12c7b39fee0_cryptolocker.exe
3028 rewok.exe

pid	process
3028	rewok.exe

pid	process
2860	2024-01-25_df08ab17a14bd1fa5f17a12c7b39fee0_cryptolocker.exe

pid	process
2860	2024-01-25_df08ab17a14bd1fa5f17a12c7b39fee0_cryptolocker.exe
3028	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-01-25_df08ab17a14bd1fa5f17a12c7b39fee0_cryptolocker.exe

description	pid	process	target process
PID 2860 wrote to memory of 3028	2860	2024-01-25_df08ab17a14bd1fa5f17a12c7b39fee0_cryptolocker.exe	rewok.exe
PID 2860 wrote to memory of 3028	2860	2024-01-25_df08ab17a14bd1fa5f17a12c7b39fee0_cryptolocker.exe	rewok.exe
PID 2860 wrote to memory of 3028	2860	2024-01-25_df08ab17a14bd1fa5f17a12c7b39fee0_cryptolocker.exe	rewok.exe
PID 2860 wrote to memory of 3028	2860	2024-01-25_df08ab17a14bd1fa5f17a12c7b39fee0_cryptolocker.exe	rewok.exe

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

C:\Users\Admin\AppData\Local\Temp\rewok.exe
Filesize
1KB

MD5
6d0c6cafb12dffc6d5c23db3ffc72b97

SHA1
393e321ecf2bb72861ebb48c59d4d658a0bf0ccd

SHA256
09a6b96ddb56cb35dc1aa6d28d0e134bd011eb96c76cfda7a33dc956515ebec1

SHA512
257fb88d18d80e1e4f87c300b37f11a43ede59f0c2c79d260b1d2849a7772c76dfa5f0677499739ffa93b8941d5b2e7c13d1e1f268374e2ad06229e1b3a37b5c

Download Submit
\Users\Admin\AppData\Local\Temp\rewok.exe
Filesize
43KB

MD5
2fd8fbf46e6a71c97cd09ca1574598d0

SHA1
d29b9e6397b0e9ffb66c92a6e6f49e079fb42b4d

SHA256
5717c5cabd766a0c2f08ea07f16edfae2ef6a09d4f707836244cdbe54b1e7699

SHA512
eb3f12ed19d92556f55883f0ad4304cd7825a9d334f9ed13c2fc49794c603ecea41f6a1df1f2437c0cce1d95e9cf43803ca6ef710e7a80e23689f79442957fdc

Download Submit
memory/2860-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2860-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2860-0-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3028-23-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download