c54a63980d3a22b70be10c9e6df4faebac9eab4d669be8a06b79c258c444a1a7

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
28/03/2024, 15:25

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General

Target

2024-03-28_356529a6e03033706ab9cc0f937b0f26_cryptolocker.exe
Size

75KB
MD5

356529a6e03033706ab9cc0f937b0f26
SHA1

120571411f4b9e7fce589ae17020522ddd3caf80
SHA256

c54a63980d3a22b70be10c9e6df4faebac9eab4d669be8a06b79c258c444a1a7
SHA512

b85a05f928ea01b5375e4592fc72dbf826e569b333a51f1369e28b7388770d37deedce26e7a9d15079df16b56c3a853dbee77039f218eee1083673a900d42a7c
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1Ro:X6a+SOtEvwDpjBZYvQd2a

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000800000001222b-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000800000001222b-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2872	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1660	2024-03-28_356529a6e03033706ab9cc0f937b0f26_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 1660 wrote to memory of 2872	1660	2024-03-28_356529a6e03033706ab9cc0f937b0f26_cryptolocker.exe	28
PID 1660 wrote to memory of 2872	1660	2024-03-28_356529a6e03033706ab9cc0f937b0f26_cryptolocker.exe	28
PID 1660 wrote to memory of 2872	1660	2024-03-28_356529a6e03033706ab9cc0f937b0f26_cryptolocker.exe	28
PID 1660 wrote to memory of 2872	1660	2024-03-28_356529a6e03033706ab9cc0f937b0f26_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-28_356529a6e03033706ab9cc0f937b0f26_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-28_356529a6e03033706ab9cc0f937b0f26_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1660
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2872

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
76KB

MD5
9e8941966dbde0cc27d7ffae83eef824

SHA1
a48e0ee2973282ed2ec7aaf536b159d008fb7fb3

SHA256
9881a6253fa61744cf33435f7908cd8bb8515e6fd6da64db17393a53fa6774d6

SHA512
f1297d17aaa1d1d5f7ee22b42122325825a876bf219d900b7008e106baf5b7480be6d822bccc109ab9fe5d6185dc55617c4e08ca512af70f584e9f93dc5afa53

Download Submit
memory/1660-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1660-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/1660-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2872-15-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2872-17-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download