d0f12346d5d1fbef9fefb97bc8671dd63f0fce2f97cb92402bb8ddec505e5dc7

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
10/04/2024, 23:29

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General

Target

2024-04-10_41cf98cbdcf2a73b1f765dd57e66a870_cryptolocker.exe
Size

41KB
MD5

41cf98cbdcf2a73b1f765dd57e66a870
SHA1

accad0ba9608d566caf20d4dc87d8f8b624e95c4
SHA256

d0f12346d5d1fbef9fefb97bc8671dd63f0fce2f97cb92402bb8ddec505e5dc7
SHA512

88e81d1187951563bafbbb5f18858ed28f5eb1236c02f55a5bc16b1ed06cf3b38e167926d93457e800827aa99bd9ab19754c304b17fca546992bda6f3111e8a5
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDDw3sCu5mXW1Rm:bgGYcA/53GADw8C3q8

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012252-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2924	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1600	2024-04-10_41cf98cbdcf2a73b1f765dd57e66a870_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 1600 wrote to memory of 2924	1600	2024-04-10_41cf98cbdcf2a73b1f765dd57e66a870_cryptolocker.exe	28
PID 1600 wrote to memory of 2924	1600	2024-04-10_41cf98cbdcf2a73b1f765dd57e66a870_cryptolocker.exe	28
PID 1600 wrote to memory of 2924	1600	2024-04-10_41cf98cbdcf2a73b1f765dd57e66a870_cryptolocker.exe	28
PID 1600 wrote to memory of 2924	1600	2024-04-10_41cf98cbdcf2a73b1f765dd57e66a870_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-10_41cf98cbdcf2a73b1f765dd57e66a870_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-10_41cf98cbdcf2a73b1f765dd57e66a870_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1600
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2924

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
41KB

MD5
a2f78c61fe4b8edd3440806a10df5629

SHA1
515e099cee12079e861f8ecfcac24194879645d8

SHA256
c561e9f8609b4dd7f3fd5edd2acd86de31a65cd406fbf39481cb871f98e9cfd3

SHA512
f335c2540ddc740c8282c3a1dd8b6e418940758a704ecf30b8cf89f680e076d1da7148413e47885cbb753c67ebbab5b5c83c36badc39510976f5e094f0776af7

Download Submit
memory/1600-0-0x0000000002920000-0x0000000002926000-memory.dmp

Filesize
24KB

Download
memory/1600-1-0x0000000002D00000-0x0000000002D06000-memory.dmp

Filesize
24KB

Download
memory/1600-2-0x0000000002920000-0x0000000002926000-memory.dmp

Filesize
24KB

Download
memory/2924-15-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2924-17-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download