7f9edbe8e066b2279101b50e073143d563ff7f70e89b5ed55b296593223b15f7

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
07-06-2024 15:29

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General

Target

2024-06-07_68551dcdb1f668a0b136d43dc8eff041_cryptolocker.exe
Size

44KB
MD5

68551dcdb1f668a0b136d43dc8eff041
SHA1

359c3edca90e2427ec42b2b19d2a0aa13ce6a08b
SHA256

7f9edbe8e066b2279101b50e073143d563ff7f70e89b5ed55b296593223b15f7
SHA512

b8acaa6d707228bf834fd402b1bcc548d75d46b062cf8900b8b12abd759eb8213f86a6ff2e55ecf3e863a759bb6fa8113c5fd851c6478c6272e8e8fe8aaab4aa
SSDEEP

384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jo0nrlwfjDUIG6S:bm74zYcgT/Ekn0ryfjiZ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2440-0-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3016-17-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2440-15-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000015a2d-14.dat	CryptoLocker_rule2
behavioral1/memory/3016-27-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3016	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2440	2024-06-07_68551dcdb1f668a0b136d43dc8eff041_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 2440 wrote to memory of 3016	2440	2024-06-07_68551dcdb1f668a0b136d43dc8eff041_cryptolocker.exe	28
PID 2440 wrote to memory of 3016	2440	2024-06-07_68551dcdb1f668a0b136d43dc8eff041_cryptolocker.exe	28
PID 2440 wrote to memory of 3016	2440	2024-06-07_68551dcdb1f668a0b136d43dc8eff041_cryptolocker.exe	28
PID 2440 wrote to memory of 3016	2440	2024-06-07_68551dcdb1f668a0b136d43dc8eff041_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-07_68551dcdb1f668a0b136d43dc8eff041_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-07_68551dcdb1f668a0b136d43dc8eff041_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2440
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3016

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

C:\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
44KB

MD5
fc79a037beb9e6ef6a624137b509eebe

SHA1
1f0bc72037b5c03decb713f1067c2ebfd863b476

SHA256
661bb65bd866932da45dc2a589575cac94a34eb0d2d96d51cfee888deb992e53

SHA512
fb57855946f16885d9c99ef70bc999d75ae6729e46a2fd87a45e49242fe44d2172ac8c87aaff8730370efd869ba7221271ea0a94ee7fa3f4d12d2ab8911d98e0

Download Submit
memory/2440-0-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2440-1-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2440-2-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2440-3-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/2440-16-0x0000000002EF0000-0x0000000002EFD000-memory.dmp

Filesize
52KB

Download
memory/2440-15-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/3016-17-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/3016-19-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/3016-26-0x0000000000580000-0x0000000000586000-memory.dmp

Filesize
24KB

Download
memory/3016-27-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download