bf7e7392e3037d49649e9092a90735553aba39ef1a53009fc443f531db8aec06

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15-04-2024 21:01

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General

Target

2024-04-15_d7faf9c96da5d811e3ef4690906da600_cryptolocker.exe
Size

40KB
MD5

d7faf9c96da5d811e3ef4690906da600
SHA1

69b4ee4998e737b790de10346b9240624705130b
SHA256

bf7e7392e3037d49649e9092a90735553aba39ef1a53009fc443f531db8aec06
SHA512

93cd9889ba90026136e875fbbcfd4d457f53e759cf06c033705fd99b485aa7e36f5e334ab52b594f1c71edd59ddb2981521be038151ca67533b234e1000afd17
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFCp4b:X6QFElP6n+gJQMOtEvwDpjBmzDUp4b

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

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

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012258-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2580	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2200	2024-04-15_d7faf9c96da5d811e3ef4690906da600_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 2200 wrote to memory of 2580	2200	2024-04-15_d7faf9c96da5d811e3ef4690906da600_cryptolocker.exe	28
PID 2200 wrote to memory of 2580	2200	2024-04-15_d7faf9c96da5d811e3ef4690906da600_cryptolocker.exe	28
PID 2200 wrote to memory of 2580	2200	2024-04-15_d7faf9c96da5d811e3ef4690906da600_cryptolocker.exe	28
PID 2200 wrote to memory of 2580	2200	2024-04-15_d7faf9c96da5d811e3ef4690906da600_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-15_d7faf9c96da5d811e3ef4690906da600_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-15_d7faf9c96da5d811e3ef4690906da600_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2200
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2580

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
40KB

MD5
7af31b6c2d704135893277199cf0dab5

SHA1
03071cb1572b28ec5e6132256a8960d0002a160a

SHA256
6854f6c48473aead7f71a2f0f32c471342f1b55e45c40c653e58427cee681bde

SHA512
c752fe788575a2a653d8810d92121bdd61f16bc4e554f1064f5954d7f9a217ce2a8132aa95610058fee9d811d5549394e1185465e8d61bc494fee61b8f018be6

Download Submit
memory/2200-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2200-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2200-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2580-16-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2580-15-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download