95d5c4a3bc2cf4846df307135ba603a4d8acc6ab539f6fbb17601f68c20b8877

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25-02-2024 00:25

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General

Target

2024-02-25_0738ed2a89ac5bd124cf38271087939f_cryptolocker.exe
Size

386KB
MD5

0738ed2a89ac5bd124cf38271087939f
SHA1

be3583088b5600e95ccf9a25faab20d2edc74aee
SHA256

95d5c4a3bc2cf4846df307135ba603a4d8acc6ab539f6fbb17601f68c20b8877
SHA512

fd23025bc9d444157525861889e744e79bbca9c759d87ddbb9de1f66567634511423266562a128a6c6be8e6b41660499372f8fd79372ab2157e5c5f30305a6ec
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXU:nnOflT/ZFIjBz3xjTxynGUOUhXU

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000013442-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1316	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
3028	2024-02-25_0738ed2a89ac5bd124cf38271087939f_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 3028 wrote to memory of 1316	3028	2024-02-25_0738ed2a89ac5bd124cf38271087939f_cryptolocker.exe	28
PID 3028 wrote to memory of 1316	3028	2024-02-25_0738ed2a89ac5bd124cf38271087939f_cryptolocker.exe	28
PID 3028 wrote to memory of 1316	3028	2024-02-25_0738ed2a89ac5bd124cf38271087939f_cryptolocker.exe	28
PID 3028 wrote to memory of 1316	3028	2024-02-25_0738ed2a89ac5bd124cf38271087939f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-25_0738ed2a89ac5bd124cf38271087939f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-25_0738ed2a89ac5bd124cf38271087939f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3028
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1316

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
386KB

MD5
6f142370ca12553518636e1c3b917ac7

SHA1
30ed10440bcdb5d794375a1302400475c48b6831

SHA256
3603d026723333dee960cf4e2c0f41f11b62f372db7c9f01393d029499b56022

SHA512
f10dab9317a07c31ef32aa0773746db9234ad97d8831e131dcfdb7f10395ddb04b42f3b8ee13f6b90fa57fa984184fd9af214af34c909970eeb38058e5cb4266

Download Submit
memory/1316-16-0x0000000001B40000-0x0000000001B46000-memory.dmp

Filesize
24KB

Download
memory/1316-15-0x0000000001B20000-0x0000000001B26000-memory.dmp

Filesize
24KB

Download
memory/3028-0-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/3028-1-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/3028-3-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download