5978311f68d3825a3114c6c95723d2a6c875c7c28a5e507501ad7c34e5387ba0

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18/01/2024, 22:45

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General

Target

2024-01-18_4f79ef6e14940e1530890c91914a662b_cryptolocker.exe
Size

44KB
MD5

4f79ef6e14940e1530890c91914a662b
SHA1

b721c97bb9a3b25f37738a53a29b0d5520c9ac90
SHA256

5978311f68d3825a3114c6c95723d2a6c875c7c28a5e507501ad7c34e5387ba0
SHA512

e584c79d305c25d5e932186a4722960d4f9bfa20a61e930a443bbe63a2ace8bb2a9a8d26b7c38603339fa385684443baf1af429d0346f9f23fbc92990a93d273
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YlPI:bgGYcA/53GAA6y37Qg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00070000000122c9-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2812	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2844	2024-01-18_4f79ef6e14940e1530890c91914a662b_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 2844 wrote to memory of 2812	2844	2024-01-18_4f79ef6e14940e1530890c91914a662b_cryptolocker.exe	28
PID 2844 wrote to memory of 2812	2844	2024-01-18_4f79ef6e14940e1530890c91914a662b_cryptolocker.exe	28
PID 2844 wrote to memory of 2812	2844	2024-01-18_4f79ef6e14940e1530890c91914a662b_cryptolocker.exe	28
PID 2844 wrote to memory of 2812	2844	2024-01-18_4f79ef6e14940e1530890c91914a662b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-18_4f79ef6e14940e1530890c91914a662b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-18_4f79ef6e14940e1530890c91914a662b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2844
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2812

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
44KB

MD5
2d5478109f28fb4f8210ce3dcb0132b2

SHA1
b41179e021d93894a1eb27c6c651d331c0c682e9

SHA256
811827ab655a87efa33a8cb3c9ffe86fab03601fabbf42ff77d7fa1390cbf45a

SHA512
f97f2cee796d4f751f61e7bb221dbbae96350c5b1d042f547259ab184cec5326282dda2d4951922951deba26ddb3143baf399528b02af1f59b2439311844b436

Download Submit
memory/2812-15-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2812-22-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2844-0-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2844-1-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2844-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download