d87f83c52253b9149995b388119158b372382a60b39181111f2444f01c1c4c5a

Analysis

max time kernel
150s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
20/02/2024, 04:44

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General

Target

2024-02-20_58cd6b7713d8766ca792f1847665d804_cryptolocker.exe
Size

45KB
MD5

58cd6b7713d8766ca792f1847665d804
SHA1

b26cd42a2cb8b690db12edd47f3a8fef007b80ab
SHA256

d87f83c52253b9149995b388119158b372382a60b39181111f2444f01c1c4c5a
SHA512

4b662ca10a44f19816ca525d1d89883386303dcd281ee3d6e6fde3194b92af983fca7ea3151448c33ec24c11c76aa3e0e33c16729954b17dbeee96254025408d
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6D8jnPx9UnuCmAG:bIDOw9a0Dwo3P1ojvUSD4PInrmAG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012252-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2664	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2156	2024-02-20_58cd6b7713d8766ca792f1847665d804_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 2664	2156	2024-02-20_58cd6b7713d8766ca792f1847665d804_cryptolocker.exe	28
PID 2156 wrote to memory of 2664	2156	2024-02-20_58cd6b7713d8766ca792f1847665d804_cryptolocker.exe	28
PID 2156 wrote to memory of 2664	2156	2024-02-20_58cd6b7713d8766ca792f1847665d804_cryptolocker.exe	28
PID 2156 wrote to memory of 2664	2156	2024-02-20_58cd6b7713d8766ca792f1847665d804_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-20_58cd6b7713d8766ca792f1847665d804_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_58cd6b7713d8766ca792f1847665d804_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2156
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2664

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\lossy.exe

Filesize
45KB

MD5
40a1bc6b50c5c4ec8df1c7c7bd737f72

SHA1
aa124c228b9f61a456872c0e2aae8b2d68450a4a

SHA256
9f29c8aa28965f963b98dcf5021baeed9bf29c4b06c9cdffe995cad5f1db4ade

SHA512
383f080dbeff7cc3c42c1318b3a5522189f6584e26b13a201de5943b5b3fe04c00fb4660d4f2c0e1a78d62a6d4dd69f85e519bc2c36b035e0347ea2a9acd0676

Download Submit
memory/2156-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2156-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2156-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2664-15-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2664-17-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download