7b9618bd2d5aa757334f37e577aef36960f244f3c877d65bc20ea7eaa3e9929f

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23-02-2024 05:28

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General

Target

2024-02-23_0fe6523fb6f6fef635dd822cc77c6bbc_cryptolocker.exe
Size

40KB
MD5

0fe6523fb6f6fef635dd822cc77c6bbc
SHA1

4660cfddd59ce6b68d8260300839ec62d0ad9b5f
SHA256

7b9618bd2d5aa757334f37e577aef36960f244f3c877d65bc20ea7eaa3e9929f
SHA512

cd271444be1bcf9357a4601c76138e959b16ffa5451c188c2684dfcedff27bb022d37e96c58a6c1715e1164cec4a07f79d826894a0da552b0124ed3a3bdf99b3
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dy8Pv7:bIDOw9a0Dwo3P1ojvUSDh7

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001234b-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2964	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
1956	2024-02-23_0fe6523fb6f6fef635dd822cc77c6bbc_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 1956 wrote to memory of 2964	1956	2024-02-23_0fe6523fb6f6fef635dd822cc77c6bbc_cryptolocker.exe	28
PID 1956 wrote to memory of 2964	1956	2024-02-23_0fe6523fb6f6fef635dd822cc77c6bbc_cryptolocker.exe	28
PID 1956 wrote to memory of 2964	1956	2024-02-23_0fe6523fb6f6fef635dd822cc77c6bbc_cryptolocker.exe	28
PID 1956 wrote to memory of 2964	1956	2024-02-23_0fe6523fb6f6fef635dd822cc77c6bbc_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-23_0fe6523fb6f6fef635dd822cc77c6bbc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_0fe6523fb6f6fef635dd822cc77c6bbc_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2964

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
40KB

MD5
eaa2d84e95d3ac80aa4a9c614622d431

SHA1
72b0bc2d038fec2e43eab5c77ed3551049236478

SHA256
a4ad52eeaf6fbf997d68a641502b3c25eb8c45a62baf459ff77afc070949f7d6

SHA512
6a0a51272f384c58360dd009cde6bbb347652012390546259704e1b21a026b9d46633809f10619de79924784d0c853499284965349df799ec001bb47687a92cf

Download Submit
memory/1956-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1956-1-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/1956-8-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download