2ab33ba471ca592e938ece6dad331e0c19d195e24e3c2d2ceef40fc1b824c603

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08/03/2024, 06:29

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General

Target

2024-03-08_f9afca47fafd646c7e2265858343e66a_cryptolocker.exe
Size

59KB
MD5

f9afca47fafd646c7e2265858343e66a
SHA1

a775bdcc03f5ba0cb1f57d7be8650835b60c6cb0
SHA256

2ab33ba471ca592e938ece6dad331e0c19d195e24e3c2d2ceef40fc1b824c603
SHA512

b637b44f5a31cdff69e2894ce029ffe7297bd182981fa45c8b6c0df96e5558b3468882fd0369ad8289e8490a36c8ebf053df9da345f2abe6949efd2d4f550e27
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHH:btng54SMLr+/AO/kIhfoKMHdK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001223f-13.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2948	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2220	2024-03-08_f9afca47fafd646c7e2265858343e66a_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
2220	2024-03-08_f9afca47fafd646c7e2265858343e66a_cryptolocker.exe
2948	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 2948	2220	2024-03-08_f9afca47fafd646c7e2265858343e66a_cryptolocker.exe	28
PID 2220 wrote to memory of 2948	2220	2024-03-08_f9afca47fafd646c7e2265858343e66a_cryptolocker.exe	28
PID 2220 wrote to memory of 2948	2220	2024-03-08_f9afca47fafd646c7e2265858343e66a_cryptolocker.exe	28
PID 2220 wrote to memory of 2948	2220	2024-03-08_f9afca47fafd646c7e2265858343e66a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-08_f9afca47fafd646c7e2265858343e66a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_f9afca47fafd646c7e2265858343e66a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2948

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

C:\Users\Admin\AppData\Local\Temp\gewos.exe

Filesize
59KB

MD5
52f751935d3b0735e5f34240ec90ea52

SHA1
68a376159d1b46b21cd2c815c32a49ba1d4f572d

SHA256
57b6a48da9c87e8477ce93359cfd9fe302e364a7efe65c3640684fa6a3142077

SHA512
320b54d15bede1dd30dd1a88b24a38bc91aeaee999df1b08795d08c553a3b327ef0687d5ef705cc1f668d5c0cdf15839c38da32e16a1842c4ef26fd9209bf84e

Download Submit
memory/2220-0-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2220-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2220-2-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2948-17-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download