fa3ec97c0f8cb40a1e2f96527482df1a1206a8927d7fed20922968648bbe9c03

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22/04/2024, 17:30

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General

Target

2024-04-22_20422797274e6488ec03aeb266029cb2_cryptolocker.exe
Size

51KB
MD5

20422797274e6488ec03aeb266029cb2
SHA1

0f94e1e3a68d1f583f624c21eb250d89407f1093
SHA256

fa3ec97c0f8cb40a1e2f96527482df1a1206a8927d7fed20922968648bbe9c03
SHA512

070a632f33c03c81684e6a7df140d64d2b5d0549c57e19fda30ed5c4b3d553574399cabe6a562785b4f6cc83e00f891db3142bbb978bbaf18b36f39e77aa2df3
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vaTCFWpzgVoI:X6QFElP6n+gJBMOtEvwDpjBtELVd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000014a94-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000014a94-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2080	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2820	2024-04-22_20422797274e6488ec03aeb266029cb2_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 2820 wrote to memory of 2080	2820	2024-04-22_20422797274e6488ec03aeb266029cb2_cryptolocker.exe	28
PID 2820 wrote to memory of 2080	2820	2024-04-22_20422797274e6488ec03aeb266029cb2_cryptolocker.exe	28
PID 2820 wrote to memory of 2080	2820	2024-04-22_20422797274e6488ec03aeb266029cb2_cryptolocker.exe	28
PID 2820 wrote to memory of 2080	2820	2024-04-22_20422797274e6488ec03aeb266029cb2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-22_20422797274e6488ec03aeb266029cb2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-22_20422797274e6488ec03aeb266029cb2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2820
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2080

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
52KB

MD5
e7389f369e756375a4fb53e85e2952f8

SHA1
6a3b1e9270f24b58c91fab06b42ff49918b5ee05

SHA256
79ba76629f6633c0a0d97869423175f6f27045585fd0912ca73517198b777e71

SHA512
9c97214e9cd97f7466a48509a8716ba5564a82d2cf71cf815dc62cbc476b9337a8e73264909efc21479a8229460ec91f44b922e0a7125622d07f449f948a6686

Download Submit
memory/2080-15-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2080-17-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2820-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2820-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2820-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download