b267a192c17927c80a978078266ec9a750aba96dc90da00aaa6e1a2739493d41

Analysis

max time kernel
148s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
23/01/2024, 09:45

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General

Target

2024-01-23_88bce15fa9c1b4c365a7b6f2bf212339_cryptolocker.exe
Size

38KB
MD5

88bce15fa9c1b4c365a7b6f2bf212339
SHA1

f132e67c4c41972e7b65a8074fa8adc6d143dd8c
SHA256

b267a192c17927c80a978078266ec9a750aba96dc90da00aaa6e1a2739493d41
SHA512

afb50ca69399242abf1e8a3bd56c731bf39e7d25ddf6444faa432b36fc30e14e6afa5c40c9880a66a2f0e357d63b8b4584eeec76535d3cbe172a3cd5b73cda99
SSDEEP

384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf0w3sp8u5cZ95d9hT1z:bgX4zYcgTEu6QOaryfjqDDw3sCu529h9

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012261-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2732	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2424	2024-01-23_88bce15fa9c1b4c365a7b6f2bf212339_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 2424 wrote to memory of 2732	2424	2024-01-23_88bce15fa9c1b4c365a7b6f2bf212339_cryptolocker.exe	28
PID 2424 wrote to memory of 2732	2424	2024-01-23_88bce15fa9c1b4c365a7b6f2bf212339_cryptolocker.exe	28
PID 2424 wrote to memory of 2732	2424	2024-01-23_88bce15fa9c1b4c365a7b6f2bf212339_cryptolocker.exe	28
PID 2424 wrote to memory of 2732	2424	2024-01-23_88bce15fa9c1b4c365a7b6f2bf212339_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-23_88bce15fa9c1b4c365a7b6f2bf212339_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-23_88bce15fa9c1b4c365a7b6f2bf212339_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2424
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2732

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
38KB

MD5
1214c39b6ed8d147f0d2fba9a35e86b9

SHA1
1e63a3e6fa075a12e8efdfcd08b65c8c1231c257

SHA256
f9cf3b9e3fd38d5a2890170ad57594ff4b7249975911f7c9ad37dc529678a365

SHA512
3460856ee3a0b836bcc8535e47a242e6c904bf3d53569df76e13ea3059d52d18a1cdc8adc718d443184691103fe94dd0955728abaa3f8adfe060208b4a44891a

Download Submit
memory/2424-0-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2424-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2424-2-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2732-15-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2732-17-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download