678cb015766ef42bfb1fb94f72dbe5c904aaea1ad99461b92d3447188c202fc8

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/02/2024, 02:27

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General

Target

2024-02-25_2220829d980abd0ac0e2efcc96e03306_cryptolocker.exe
Size

43KB
MD5

2220829d980abd0ac0e2efcc96e03306
SHA1

b7e945f0b4f49d2f71a78d06f3e8bface7acf59e
SHA256

678cb015766ef42bfb1fb94f72dbe5c904aaea1ad99461b92d3447188c202fc8
SHA512

c6d65ece8ccaa0d98746358a26f92602bfb2d550c0770227a5399f5589f9ad2f761105d5a3664f716ee77be1caab4469955a7766cc6e35bdf0180e7d5ec06296
SSDEEP

768:btB9g/WItCSsAGjX7r3BPOMHocM4vUUOmJ+96eg1lL:btB9g/xtCSKfxLIcMzUw96DL

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012265-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2076	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
3020	2024-02-25_2220829d980abd0ac0e2efcc96e03306_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
3020	2024-02-25_2220829d980abd0ac0e2efcc96e03306_cryptolocker.exe
2076	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3020 wrote to memory of 2076	3020	2024-02-25_2220829d980abd0ac0e2efcc96e03306_cryptolocker.exe	28
PID 3020 wrote to memory of 2076	3020	2024-02-25_2220829d980abd0ac0e2efcc96e03306_cryptolocker.exe	28
PID 3020 wrote to memory of 2076	3020	2024-02-25_2220829d980abd0ac0e2efcc96e03306_cryptolocker.exe	28
PID 3020 wrote to memory of 2076	3020	2024-02-25_2220829d980abd0ac0e2efcc96e03306_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-25_2220829d980abd0ac0e2efcc96e03306_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-25_2220829d980abd0ac0e2efcc96e03306_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3020
- 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:2076

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
43KB

MD5
bd5c09f7c2dc540c17b343483cc483f4

SHA1
07d8d9da799d0bbb903db9f05f47ae31968a49af

SHA256
20a3d29a322bb13daf9e908a91ed1e932b3c9e36e828a71e3b34a6b02e6d2e5e

SHA512
17811433959f6132810ea8b4e8f066a5a86ed07d9ecd5c128f25fde7e6f8a21b6a93e65fc6ebf9ee6f8395be68f92c0a7ebbeea3e745653b9447249083eedaf1

Download Submit
memory/2076-21-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/3020-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3020-2-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/3020-0-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download