b0e46ec37603e725e7e15b56b36ab7bedd19e0927b2ca8b7c63340bf404099dd

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19-02-2024 09:22

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General

Target

2024-02-19_0af0ae5e7bc0d018527c3dc1dd085d3d_cryptolocker.exe
Size

47KB
MD5

0af0ae5e7bc0d018527c3dc1dd085d3d
SHA1

4f7c9dcb99664240a9e524f49adbf3bb0698b95e
SHA256

b0e46ec37603e725e7e15b56b36ab7bedd19e0927b2ca8b7c63340bf404099dd
SHA512

ffa131d7699b7c24484378a7ddd40bddf5df3e49fccc07628ba9de5f676a09ee07e75dbb2db71d9dd7ec62f19beae15808df8bd184a048b78ace4caa9215f855
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3wwsr0B:X6QFElP6n+gJQMOtEvwDpjBDG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

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

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012261-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1740	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1228	2024-02-19_0af0ae5e7bc0d018527c3dc1dd085d3d_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 1228 wrote to memory of 1740	1228	2024-02-19_0af0ae5e7bc0d018527c3dc1dd085d3d_cryptolocker.exe	28
PID 1228 wrote to memory of 1740	1228	2024-02-19_0af0ae5e7bc0d018527c3dc1dd085d3d_cryptolocker.exe	28
PID 1228 wrote to memory of 1740	1228	2024-02-19_0af0ae5e7bc0d018527c3dc1dd085d3d_cryptolocker.exe	28
PID 1228 wrote to memory of 1740	1228	2024-02-19_0af0ae5e7bc0d018527c3dc1dd085d3d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-19_0af0ae5e7bc0d018527c3dc1dd085d3d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_0af0ae5e7bc0d018527c3dc1dd085d3d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1228
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1740

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\asih.exe

Filesize
47KB

MD5
ba4ad1bf87e512ae9883d319ee5eb641

SHA1
e75c33279fa45dc0c6a18c4a8d37948815bf319d

SHA256
2a18028d9dbf1b45d2ee76c977626409eec18e2140e80fe78a961de61775bfd0

SHA512
f134b056263345498b05fb6ccb0587d67cc5274ed530f12d35718107c784340b569682ab9d323cff1840c8f848b7b31af48bf999329d890714b8f6f37df99d31

Download Submit
memory/1228-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1228-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1228-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1740-15-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1740-17-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download