4748bcbc16c91b2bbcc596115c6eed743901ac85acff31977c8dacb5949fcb9a

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/02/2024, 17:39

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General

Target

2024-02-23_95b85505737e720e8f59148c5f186f96_cryptolocker.exe
Size

40KB
MD5

95b85505737e720e8f59148c5f186f96
SHA1

dc9fab260f4741577cec4b079da425e9fb2d3ea5
SHA256

4748bcbc16c91b2bbcc596115c6eed743901ac85acff31977c8dacb5949fcb9a
SHA512

2633600eeb063f711fc153924fac22d27e72b7d1c3ffcbf6a28e136caf9a9c76337f01d78333041b187e9c0ce70002a8c6eae3f6edf9220e575c0be126f08128
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDDw3sCu529hyK+yY:bgGYcA/53GADw8Ch90X

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012258-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1808	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2340	2024-02-23_95b85505737e720e8f59148c5f186f96_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 2340 wrote to memory of 1808	2340	2024-02-23_95b85505737e720e8f59148c5f186f96_cryptolocker.exe	28
PID 2340 wrote to memory of 1808	2340	2024-02-23_95b85505737e720e8f59148c5f186f96_cryptolocker.exe	28
PID 2340 wrote to memory of 1808	2340	2024-02-23_95b85505737e720e8f59148c5f186f96_cryptolocker.exe	28
PID 2340 wrote to memory of 1808	2340	2024-02-23_95b85505737e720e8f59148c5f186f96_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-23_95b85505737e720e8f59148c5f186f96_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_95b85505737e720e8f59148c5f186f96_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2340
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1808

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
40KB

MD5
ad10ded625d69ef5d5f0513be9a94136

SHA1
96bdf6c8f1044d1ece74127d0f88ea9602175804

SHA256
9abc28ad20364229c95050d9ce6c01caca81bc29bab8c4f52bb00186e96392ee

SHA512
121d83bdfa3c3dbcfb11d9c43728c92501a509f6b679551cb5d59cc2bc1bab411ea1aee2c197d09cdf601966f0d9546fa0b47d15a97311f923599e9f290a896c

Download Submit
memory/1808-15-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2340-0-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2340-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2340-1-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download