a1e561993025b0e2509552ae0aebb5f65d4b62ff4a1f2d3a1fc0720bff58e284

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
09-05-2024 15:05

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-09_edd91209f685c24a99c7b631790bc3b7_cryptolocker.exe
Size

40KB
MD5

edd91209f685c24a99c7b631790bc3b7
SHA1

3056a617a6a6eaaedc98680cef4885de91959b4e
SHA256

a1e561993025b0e2509552ae0aebb5f65d4b62ff4a1f2d3a1fc0720bff58e284
SHA512

6a9e9189ef34f57c57d78b1a2741a34db2815469bca0952fc5893a3d65dd7a1546e5ef69c81ae4bc01b91acc485bd0285862b421d0bfd1a087fc239cbb8c8723
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunKzH15U/Eyr:btB9g/WItCSsAGjX7e9N0hunKLYNr

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00080000000122cd-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2600	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2584	2024-05-09_edd91209f685c24a99c7b631790bc3b7_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
2584	2024-05-09_edd91209f685c24a99c7b631790bc3b7_cryptolocker.exe
2600	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2584 wrote to memory of 2600	2584	2024-05-09_edd91209f685c24a99c7b631790bc3b7_cryptolocker.exe	28
PID 2584 wrote to memory of 2600	2584	2024-05-09_edd91209f685c24a99c7b631790bc3b7_cryptolocker.exe	28
PID 2584 wrote to memory of 2600	2584	2024-05-09_edd91209f685c24a99c7b631790bc3b7_cryptolocker.exe	28
PID 2584 wrote to memory of 2600	2584	2024-05-09_edd91209f685c24a99c7b631790bc3b7_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-09_edd91209f685c24a99c7b631790bc3b7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-09_edd91209f685c24a99c7b631790bc3b7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2584
- 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:2600

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

Loading Replay Monitor...

Downloads

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

Filesize
40KB

MD5
ddd74f5265585cfcb0ee714df123d8bf

SHA1
26b90a5cca5026d2215154dd65b8ae807eca3fdc

SHA256
41859092ebac6f0133b3d8753d0a5adcafadc9f1a13b3b42780455d24ba314c5

SHA512
985eab2da69933546d44f8695aed9299d1b32b1d661f17320669b0299703dd910bdc65ac0fa2ece8c623aba6410d2609fa69040bf4b39c5935eca731dd2f9335

Download Submit
memory/2584-0-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2584-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2584-8-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2600-23-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download