a93000fb4cfd314c98b8fbfee0b3720ddc32e24cddc080c8d989bef9050fa41e

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
27/01/2024, 15:24

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General

Target

2024-01-27_209d38297988658861e6353883fd0bb4_cryptolocker.exe
Size

40KB
MD5

209d38297988658861e6353883fd0bb4
SHA1

e4ddd1f00fd43f0a3948c0731b10fc0e2ed4a85b
SHA256

a93000fb4cfd314c98b8fbfee0b3720ddc32e24cddc080c8d989bef9050fa41e
SHA512

bb9ca13e3f06975701d01163e41ef1855199b4bd99557a735094da7f520197f697819dabcf1736d9b31e029fc911e8cb0b043bf32641543e684e39ddb1735ff7
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunrkwIxZnJkTw:btB9g/WItCSsAGjX7e9N0hunrknJQw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012252-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2536	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1732	2024-01-27_209d38297988658861e6353883fd0bb4_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
1732	2024-01-27_209d38297988658861e6353883fd0bb4_cryptolocker.exe
2536	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 2536	1732	2024-01-27_209d38297988658861e6353883fd0bb4_cryptolocker.exe	28
PID 1732 wrote to memory of 2536	1732	2024-01-27_209d38297988658861e6353883fd0bb4_cryptolocker.exe	28
PID 1732 wrote to memory of 2536	1732	2024-01-27_209d38297988658861e6353883fd0bb4_cryptolocker.exe	28
PID 1732 wrote to memory of 2536	1732	2024-01-27_209d38297988658861e6353883fd0bb4_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-27_209d38297988658861e6353883fd0bb4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-27_209d38297988658861e6353883fd0bb4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1732
- 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:2536

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
40KB

MD5
24e7a37676eaecc540a972645dbed840

SHA1
7f087e377168a2a6c31f0b59f30583376207ce9f

SHA256
baad71d6277a2a693463d0fbee22603e1124e8350d1d4a4642728b2941329d6c

SHA512
fb7d27f1ed1217b7ed2af886174d9a59c1324283ccb1164291b73415c8a8a457bfbd143d02cac893bb18b5706fa45fc5427a90fb7797e8ad87a263cc0bb1683f

Download Submit
memory/1732-0-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/1732-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1732-3-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/2536-20-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download