2761452e4d14bb933196dcc7f63d05f25811a626d5791e3ef71d22f81cb06cc2

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
24/02/2024, 06:45

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General

Target

2024-02-24_f23386eabcf56f9384976a5ad435fe04_cryptolocker.exe
Size

386KB
MD5

f23386eabcf56f9384976a5ad435fe04
SHA1

477b294c974544a96c2606e19924f2f8a1236e15
SHA256

2761452e4d14bb933196dcc7f63d05f25811a626d5791e3ef71d22f81cb06cc2
SHA512

2430fdcad2eca884d94c840ebc788845e79354efd11949d4237a162929a7c5fcfd2e9d18578a6d40b868ad92fb5d1a354fb9748a457e395dfa2c9d4f7c5374c4
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXx:nnOflT/ZFIjBz3xjTxynGUOUhXx

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000122c3-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1640	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2372	2024-02-24_f23386eabcf56f9384976a5ad435fe04_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 2372 wrote to memory of 1640	2372	2024-02-24_f23386eabcf56f9384976a5ad435fe04_cryptolocker.exe	28
PID 2372 wrote to memory of 1640	2372	2024-02-24_f23386eabcf56f9384976a5ad435fe04_cryptolocker.exe	28
PID 2372 wrote to memory of 1640	2372	2024-02-24_f23386eabcf56f9384976a5ad435fe04_cryptolocker.exe	28
PID 2372 wrote to memory of 1640	2372	2024-02-24_f23386eabcf56f9384976a5ad435fe04_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-24_f23386eabcf56f9384976a5ad435fe04_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-24_f23386eabcf56f9384976a5ad435fe04_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1640

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
b4d21f7e44bf5d53e658712dbeee5293

SHA1
bfc645c2d68675aaa2379c92bf66ac471407b443

SHA256
c24ee63cda1e1b9252abe4601c08c20c5ea8b2cb18779763a7ae59711a2364a1

SHA512
673b674507fc2979f52f1014660fa31304c675171349819c393bae9b533e63992949fefc92d9120d96472251de247da75e9d42550486cd6a57cc58897d8ed98e

Download Submit
memory/1640-15-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/1640-18-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2372-0-0x0000000001CC0000-0x0000000001CC6000-memory.dmp

Filesize
24KB

Download
memory/2372-1-0x0000000001CC0000-0x0000000001CC6000-memory.dmp

Filesize
24KB

Download
memory/2372-2-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download