0dece21d96c03a117042df9c219dd346d027508a9e3f0e1f1895ca4ecfd1de8f

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21/02/2024, 18:32

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General

Target

2024-02-21_4a6ef11d3c9e812194165f3d2362bb87_cryptolocker.exe
Size

385KB
MD5

4a6ef11d3c9e812194165f3d2362bb87
SHA1

33d59e026c06b9d78be320e2d2fa351fb71d5b81
SHA256

0dece21d96c03a117042df9c219dd346d027508a9e3f0e1f1895ca4ecfd1de8f
SHA512

a9cb5cc4fc79c76e7639b010c72b683392e3797e182fe626fa7f92537568ef19719e5409184ee5f468e65f142b58ee7632545d75e814635d7c7450745f743276
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXo:nnOflT/ZFIjBz3xjTxynGUOUhXo

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001418d-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2820	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2916	2024-02-21_4a6ef11d3c9e812194165f3d2362bb87_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 2916 wrote to memory of 2820	2916	2024-02-21_4a6ef11d3c9e812194165f3d2362bb87_cryptolocker.exe	28
PID 2916 wrote to memory of 2820	2916	2024-02-21_4a6ef11d3c9e812194165f3d2362bb87_cryptolocker.exe	28
PID 2916 wrote to memory of 2820	2916	2024-02-21_4a6ef11d3c9e812194165f3d2362bb87_cryptolocker.exe	28
PID 2916 wrote to memory of 2820	2916	2024-02-21_4a6ef11d3c9e812194165f3d2362bb87_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-21_4a6ef11d3c9e812194165f3d2362bb87_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_4a6ef11d3c9e812194165f3d2362bb87_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2916
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2820

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
386KB

MD5
86820e59163fdb3fb2120f897d72a005

SHA1
28858dec1bb85864340a7d3f7d9dc6e8030a011b

SHA256
a4cd8fb324a353a5a5bc2467986d40cd70c89d133e3e818596d322529a96595a

SHA512
87f0e4f71461747678413e74c0e8fea475e9b86d1db58c1bd5042388ac27321c195ea82f684d24dd5490a5af4a779adea72e465865f91b8648c52629bc4b8f6c

Download Submit
memory/2820-16-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/2820-15-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/2916-0-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/2916-1-0x0000000001CF0000-0x0000000001CF6000-memory.dmp

Filesize
24KB

Download
memory/2916-8-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download