b18178a52e8f6f3de78dff6a877350a3f2e6b3f0c3eb6ab58c168f070ecc750d

Analysis

max time kernel
149s
max time network
155s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15-03-2024 22:21

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General

Target

2024-03-15_071da229833a0c01f20d3905d816039f_cryptolocker.exe
Size

73KB
MD5

071da229833a0c01f20d3905d816039f
SHA1

00da10d5ed5c77d1c5911df4689ac9cd53fb0d16
SHA256

b18178a52e8f6f3de78dff6a877350a3f2e6b3f0c3eb6ab58c168f070ecc750d
SHA512

cfea02ffd13e0f3f07fa26c18c36f77ec5b2c00f45f578c05c7f50fe33af43828bb3c994ae67b80f4591246082936a1c5cae331362b1fa85a52f8cc0c994d82d
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsa:X6a+SOtEvwDpjBZYvQd2Z

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001227e-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001227e-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2752	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1300	2024-03-15_071da229833a0c01f20d3905d816039f_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 1300 wrote to memory of 2752	1300	2024-03-15_071da229833a0c01f20d3905d816039f_cryptolocker.exe	28
PID 1300 wrote to memory of 2752	1300	2024-03-15_071da229833a0c01f20d3905d816039f_cryptolocker.exe	28
PID 1300 wrote to memory of 2752	1300	2024-03-15_071da229833a0c01f20d3905d816039f_cryptolocker.exe	28
PID 1300 wrote to memory of 2752	1300	2024-03-15_071da229833a0c01f20d3905d816039f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-15_071da229833a0c01f20d3905d816039f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_071da229833a0c01f20d3905d816039f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1300
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2752

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\asih.exe

Filesize
73KB

MD5
4b3a8c5865bd49a4db4878198ff6e4cb

SHA1
4ccf87cc8de3ffae84248ba8eeb49adf01961ebe

SHA256
6ee761db6545527e121ef7038fce5f721c9c148cffec005064be14afe9cf8046

SHA512
6bd41769f6cf9c2cadd43a1549e46e728a511c27717d1a81852e22f0bc2457086b667dbaee45bd922925edb680982bf637d567a229c0ca37d18aba5d3a55ddf1

Download Submit
memory/1300-0-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/1300-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1300-2-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2752-16-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2752-15-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download