23174968d3a6a4e737ea0f068fe3e920f47c3f6a255128681de0b806788d345c

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19/02/2024, 21:47

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General

Target

2024-02-19_a2f08bd281df142300283d5f02b1d7a7_cryptolocker.exe
Size

46KB
MD5

a2f08bd281df142300283d5f02b1d7a7
SHA1

b7d4c7842e37c9c96cfd90546ae01456a757c5f7
SHA256

23174968d3a6a4e737ea0f068fe3e920f47c3f6a255128681de0b806788d345c
SHA512

053b7e21db9d00f2b9c792d395539bbe81a618a5a04d1f9a5b7a55b6a8e9c0a8d814ed30b25d5b596a377666ed2fb34daf0ec6ea07b849fe5280bbe0345b4196
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hvvC:bgGYcA/53GAA6y37nbi

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012242-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2776	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
3016	2024-02-19_a2f08bd281df142300283d5f02b1d7a7_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 3016 wrote to memory of 2776	3016	2024-02-19_a2f08bd281df142300283d5f02b1d7a7_cryptolocker.exe	28
PID 3016 wrote to memory of 2776	3016	2024-02-19_a2f08bd281df142300283d5f02b1d7a7_cryptolocker.exe	28
PID 3016 wrote to memory of 2776	3016	2024-02-19_a2f08bd281df142300283d5f02b1d7a7_cryptolocker.exe	28
PID 3016 wrote to memory of 2776	3016	2024-02-19_a2f08bd281df142300283d5f02b1d7a7_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-19_a2f08bd281df142300283d5f02b1d7a7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_a2f08bd281df142300283d5f02b1d7a7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2776

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\hasfj.exe

Filesize
46KB

MD5
50f2c6eb2021d5b64b7b261bd15e47ab

SHA1
e5c4f0646a22fe05b78c30d8ee0a45263d47bba8

SHA256
c657dea9a67312ebee41ca1b5f3fff90563401d3950186a670af2ab6cc257eda

SHA512
988253c587c06521cbc9b940e80d0edc70691abe413b35a5e6389738d1e5c56ab9f56dc835618c8608dc7dabb4a6fb51a5d089fdabe1676e75c2feee236cdadc

Download Submit
memory/2776-15-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2776-17-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/3016-0-0x0000000001BC0000-0x0000000001BC6000-memory.dmp

Filesize
24KB

Download
memory/3016-2-0x0000000001BC0000-0x0000000001BC6000-memory.dmp

Filesize
24KB

Download
memory/3016-1-0x0000000001BD0000-0x0000000001BD6000-memory.dmp

Filesize
24KB

Download