563100499a42ef18cc696bb0cef0a2be3da722b00d4c2812e3c59bd28c14baaf

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18/01/2024, 13:42

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General

Target

2024-01-18_4a7aefe48678466d227208625d758727_cryptolocker.exe
Size

36KB
MD5

4a7aefe48678466d227208625d758727
SHA1

1a2741ddff5d533bc5699e587778cedf43de2066
SHA256

563100499a42ef18cc696bb0cef0a2be3da722b00d4c2812e3c59bd28c14baaf
SHA512

04a221df9afdd23354279cf796e76906272aeddbf3b4c7eda41d8a8773b2022c8bef47414ccd0e6847d160deb7556f72bb6811f6da11b7923b4d4832a0711148
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFCm:X6QFElP6n+gJQMOtEvwDpjBmzDUm

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001226e-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001226e-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2316	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2232	2024-01-18_4a7aefe48678466d227208625d758727_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 2232 wrote to memory of 2316	2232	2024-01-18_4a7aefe48678466d227208625d758727_cryptolocker.exe	28
PID 2232 wrote to memory of 2316	2232	2024-01-18_4a7aefe48678466d227208625d758727_cryptolocker.exe	28
PID 2232 wrote to memory of 2316	2232	2024-01-18_4a7aefe48678466d227208625d758727_cryptolocker.exe	28
PID 2232 wrote to memory of 2316	2232	2024-01-18_4a7aefe48678466d227208625d758727_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-18_4a7aefe48678466d227208625d758727_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-18_4a7aefe48678466d227208625d758727_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2316

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
36KB

MD5
e4131f1513bacaeef2a5d91d654c7391

SHA1
a6931a5ef460606c754320803dfd342a7ebb449d

SHA256
2a185a6694de2e93a2133ed84e8096b3e832e7c5f35e1824aec8e05415d2b73b

SHA512
9943481f6c74c28d177867aa8d8a102c7135acc81cb7afba66109bf1bfb09f515dd482e2553ce249a3ce18d35753156a971806df87cee6de4365568845707a84

Download Submit
memory/2232-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2232-1-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2232-3-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2316-15-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2316-17-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download