d641b0f3944449c7e5d5a930ac0b9908ca371a6ceb75ac31b19d170b75509cf7

Analysis

max time kernel
148s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
16-04-2024 00:43

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General

Target

2024-04-16_299e1d3822830f70feae0b15874def67_cryptolocker.exe
Size

38KB
MD5

299e1d3822830f70feae0b15874def67
SHA1

929745cbd888a5ca980d46c903d73ff37b006e3b
SHA256

d641b0f3944449c7e5d5a930ac0b9908ca371a6ceb75ac31b19d170b75509cf7
SHA512

66ff1808f6cbb94462a62d8e79bd2dd51e8b0b3936a5ae748da49eccbbfa27b3fe57e1b0ed216eef7e1cd07517caa5eb26cc26b206fa750243a72b7694ff6f8a
SSDEEP

768:bA74zYcgT/Ekd0ryfjPIunqpeNswmT3Hh:bA6YcA/X6G0W143B

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
1444	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1980	2024-04-16_299e1d3822830f70feae0b15874def67_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 1980 wrote to memory of 1444	1980	2024-04-16_299e1d3822830f70feae0b15874def67_cryptolocker.exe	28
PID 1980 wrote to memory of 1444	1980	2024-04-16_299e1d3822830f70feae0b15874def67_cryptolocker.exe	28
PID 1980 wrote to memory of 1444	1980	2024-04-16_299e1d3822830f70feae0b15874def67_cryptolocker.exe	28
PID 1980 wrote to memory of 1444	1980	2024-04-16_299e1d3822830f70feae0b15874def67_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-16_299e1d3822830f70feae0b15874def67_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-16_299e1d3822830f70feae0b15874def67_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1980
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1444

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\hasfj.exe

Filesize
38KB

MD5
fa8863a9a3c6d4d948957f84f21afdf8

SHA1
47a86751eb8555520e1ddae9eb2ca133a8be214e

SHA256
e65f49fef4f15092ff04e7a5f77688c2cf15f6f7965eb355b0274b801e3b425f

SHA512
5a0006dcf36837e0a4ea01fd9516ff3b3044459201efffe6a621202487cd603327beedd30d86c844ec0e84e9c971d5dd007ca3a255c2e8ed2aeccf05ae894bca

Download Submit
memory/1444-15-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/1444-17-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/1980-0-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/1980-2-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/1980-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download