f685648d4fc999b9835872c746875babc1926e7d013821da3ee7270ba0217307

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
12/05/2024, 13:52

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General

Target

2024-05-12_f19d06de4cc21ede20ed9e261ed8bfc3_cryptolocker.exe
Size

40KB
MD5

f19d06de4cc21ede20ed9e261ed8bfc3
SHA1

25516697896b2a69c36ad9cd233b750e3bf1b497
SHA256

f685648d4fc999b9835872c746875babc1926e7d013821da3ee7270ba0217307
SHA512

593d6ea15d4d21cb57f5d730045b0ace386518b1e81cec43f9c22e9a6a6a6154ee584387a6311f1bf4443118263f7f2b9adfde1c8cf87797ff50583e633f6506
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunKzH15U/E8RK:btB9g/WItCSsAGjX7e9N0hunKLYdRK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001228a-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1208	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
3028	2024-05-12_f19d06de4cc21ede20ed9e261ed8bfc3_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
3028	2024-05-12_f19d06de4cc21ede20ed9e261ed8bfc3_cryptolocker.exe
1208	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 1208	3028	2024-05-12_f19d06de4cc21ede20ed9e261ed8bfc3_cryptolocker.exe	28
PID 3028 wrote to memory of 1208	3028	2024-05-12_f19d06de4cc21ede20ed9e261ed8bfc3_cryptolocker.exe	28
PID 3028 wrote to memory of 1208	3028	2024-05-12_f19d06de4cc21ede20ed9e261ed8bfc3_cryptolocker.exe	28
PID 3028 wrote to memory of 1208	3028	2024-05-12_f19d06de4cc21ede20ed9e261ed8bfc3_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-12_f19d06de4cc21ede20ed9e261ed8bfc3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-12_f19d06de4cc21ede20ed9e261ed8bfc3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3028
- 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:1208

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
41KB

MD5
3a6ac546cbebd309c6e432b324b70ccd

SHA1
8d5b540c3ee03aa9f81aba575d325263ccc2a20d

SHA256
b7d6b3375c80057a558b5d20668ed9f275796b339c0e7fdeff90ebe3aee2f5b1

SHA512
e7e9c25d0a9704799e588fdade360dbf0e81436c3b7c1026a10b3ad9a4413abd8f47ec86bab55731927813564b9d18806a82a1cc39135e25fb19b1bafcc8d40a

Download Submit
memory/1208-23-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/3028-0-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/3028-8-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/3028-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download