72cf897702ddde9e5f7fa2424266fe1f8b13771686cdb15546588da9222226af

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
13/05/2024, 15:26

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General

Target

2024-05-13_5f0472b6858bf11b523cb119edf232a5_cryptolocker.exe
Size

62KB
MD5

5f0472b6858bf11b523cb119edf232a5
SHA1

df56c81d41f506907c5a23ab670b4e7ef53c5b5e
SHA256

72cf897702ddde9e5f7fa2424266fe1f8b13771686cdb15546588da9222226af
SHA512

2bc704e6e85558af843a169bb335503419c1a7919420501ec5c7ed829b36ffe07bedb67340b594b82b776e6b996638577eddc40bf72e036c459933e58e1bb441
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHZnJ9:btng54SMLr+/AO/kIhfoKMHdaT

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001424e-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2224	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2512	2024-05-13_5f0472b6858bf11b523cb119edf232a5_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
2512	2024-05-13_5f0472b6858bf11b523cb119edf232a5_cryptolocker.exe
2224	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2512 wrote to memory of 2224	2512	2024-05-13_5f0472b6858bf11b523cb119edf232a5_cryptolocker.exe	28
PID 2512 wrote to memory of 2224	2512	2024-05-13_5f0472b6858bf11b523cb119edf232a5_cryptolocker.exe	28
PID 2512 wrote to memory of 2224	2512	2024-05-13_5f0472b6858bf11b523cb119edf232a5_cryptolocker.exe	28
PID 2512 wrote to memory of 2224	2512	2024-05-13_5f0472b6858bf11b523cb119edf232a5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-13_5f0472b6858bf11b523cb119edf232a5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-13_5f0472b6858bf11b523cb119edf232a5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2512
- 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:2224

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\gewos.exe

Filesize
62KB

MD5
6d9318ca00b3dcce009f86faf24361a9

SHA1
3889780a8a78d5d0b0ed47b641defe8093f86039

SHA256
db631c69c9731d7f41117f344fedd8b0c175b6b0888b62d1a6d3203867527cec

SHA512
29f25759aa1a1c104b39efd6a807dd539c4c63841c9f2558c2c10c1cf93d22e658cd7c0322ebaf9f36256903fea8c1476a8f1e412c9d73820dfcd6c1fac3d882

Download Submit
memory/2224-23-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2512-0-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2512-8-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2512-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download