f020b40953d1150101cf39976899438b5c30a6f46513059f6f0c4b9b96dcc030

Analysis

max time kernel
165s
max time network
172s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15/03/2024, 09:28

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General

Target

2024-03-15_14321d6b6710b975b474afdda4f4b87b_cryptolocker.exe
Size

37KB
MD5

14321d6b6710b975b474afdda4f4b87b
SHA1

a9048216e485fa0377282001e0855d21a61d2c18
SHA256

f020b40953d1150101cf39976899438b5c30a6f46513059f6f0c4b9b96dcc030
SHA512

7078da1a04c5bdf9e2b3e166e223b9aa7904146fbeba70db6c319cd1baf12f502030f34f636b83630312ee308555c98583a1c39fb60e5a9444f1cadd2fc84e37
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5axs:V6QFElP6n+gMQMOtEvwDpjyaYam

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012245-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012245-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2636	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2896	2024-03-15_14321d6b6710b975b474afdda4f4b87b_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 2896 wrote to memory of 2636	2896	2024-03-15_14321d6b6710b975b474afdda4f4b87b_cryptolocker.exe	27
PID 2896 wrote to memory of 2636	2896	2024-03-15_14321d6b6710b975b474afdda4f4b87b_cryptolocker.exe	27
PID 2896 wrote to memory of 2636	2896	2024-03-15_14321d6b6710b975b474afdda4f4b87b_cryptolocker.exe	27
PID 2896 wrote to memory of 2636	2896	2024-03-15_14321d6b6710b975b474afdda4f4b87b_cryptolocker.exe	27

C:\Users\Admin\AppData\Local\Temp\2024-03-15_14321d6b6710b975b474afdda4f4b87b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_14321d6b6710b975b474afdda4f4b87b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2896
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2636

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
37KB

MD5
a8b1f76cd27a582bc09d9620a25ea939

SHA1
0fc0f7a9f557f0dab8625da5743025ff0b9f6861

SHA256
ccdf0fe387764081ad4233e33ebc0a6b18accf1c3840e568805f24ab45e40539

SHA512
8eded06005c93a221782ac92baafcef532b0e9cc08e80a927e6a1a37977c445e359279823690ec655aa8cf5d58bd6b1b4eba2da04e9682a93abaf6eccd0b2092

Download Submit
memory/2636-15-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2636-16-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2896-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2896-1-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2896-2-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download