5e3a4ba7d484db06afe0c9416a9a20c287081cf3eb34ad19a8c01bae4f1baf3c

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
12-06-2024 17:16

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General

Target

2024-06-12_a78ee8d527f1144eba244383eac9c574_cryptolocker.exe
Size

45KB
MD5

a78ee8d527f1144eba244383eac9c574
SHA1

930aaaf14130aa88cd94806f3deb19866b72514e
SHA256

5e3a4ba7d484db06afe0c9416a9a20c287081cf3eb34ad19a8c01bae4f1baf3c
SHA512

03eaabed6c6e51f07669e3869f7f70aaeb124e6de79af90dc647e409fc51cb11871e58ab035ca78c92e4e85d1cc7c1e23dabd98ad67adb0077741126d4399ab5
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9R:X6QFElP6n+gJQMOtEvwDpjBmzDkWDb

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000500000000b309-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000500000000b309-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2844	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2872	2024-06-12_a78ee8d527f1144eba244383eac9c574_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 2872 wrote to memory of 2844	2872	2024-06-12_a78ee8d527f1144eba244383eac9c574_cryptolocker.exe	28
PID 2872 wrote to memory of 2844	2872	2024-06-12_a78ee8d527f1144eba244383eac9c574_cryptolocker.exe	28
PID 2872 wrote to memory of 2844	2872	2024-06-12_a78ee8d527f1144eba244383eac9c574_cryptolocker.exe	28
PID 2872 wrote to memory of 2844	2872	2024-06-12_a78ee8d527f1144eba244383eac9c574_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-12_a78ee8d527f1144eba244383eac9c574_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-12_a78ee8d527f1144eba244383eac9c574_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2844

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
46KB

MD5
daf4509b93cfa1201c7cf758ba241b96

SHA1
a47144cdf184033178af21d4fe634bda71705c30

SHA256
395ea31529106a9e018f1be93f8ebb94539909b0e42fc47ed518c00fff1edef7

SHA512
8cba45ba20fef6bb256a67fa3289c84c76a5752266b3b33ba8b5b4bec6a8e6b7fd10014489cce99b79a8d84b5ee7e6663c95e9ddefaf29f2604d5e18ce1a86ee

Download Submit
memory/2844-22-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2844-15-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2872-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2872-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2872-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download