069933e523919e2a7094a76807e0e5fbf981793370f5cb39bfb54cf46501eda3

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
22/01/2024, 17:45

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General

Target

2024-01-22_872db772d8d729deb978001c34258635_cryptolocker.exe
Size

57KB
MD5

872db772d8d729deb978001c34258635
SHA1

88d21b4421e1586b32d8d45544ae2dad6cde8271
SHA256

069933e523919e2a7094a76807e0e5fbf981793370f5cb39bfb54cf46501eda3
SHA512

1c9ebfa4c648013622ac2abc75a261dc6066717678944417ff1569098342ddf1488909eeea27f7f75d536a4639d1a1b1b822f16b8a178859599177533dc3d4bd
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHF:btng54SMLr+/AO/kIhfoKMHdE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012251-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2264	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2232	2024-01-22_872db772d8d729deb978001c34258635_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
2232	2024-01-22_872db772d8d729deb978001c34258635_cryptolocker.exe
2264	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 2264	2232	2024-01-22_872db772d8d729deb978001c34258635_cryptolocker.exe	28
PID 2232 wrote to memory of 2264	2232	2024-01-22_872db772d8d729deb978001c34258635_cryptolocker.exe	28
PID 2232 wrote to memory of 2264	2232	2024-01-22_872db772d8d729deb978001c34258635_cryptolocker.exe	28
PID 2232 wrote to memory of 2264	2232	2024-01-22_872db772d8d729deb978001c34258635_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-22_872db772d8d729deb978001c34258635_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-22_872db772d8d729deb978001c34258635_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2232
- 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:2264

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
57KB

MD5
df963c527a81813bcf316cee5f31377d

SHA1
534b18dd9230b1e61b4d6bc5f5100c7ab82a1515

SHA256
b467608ba0dc7c7dd03f165646a7a857658714032236911c5e8ec2bc3d2f469d

SHA512
e0b430a698f40a0b9a55b750e8a892f8759b8e94edb741c205d994ac0d97073019a882c70cbf9169238fef4f0965f2b5020bdd49906bc40b84756db6778d3857

Download Submit
memory/2232-0-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2232-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2232-8-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2264-17-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download