679d214aee7de944f43295001eb37b9675acfa01b064d564c13f76ae69bb2caa

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
18/02/2024, 22:55

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General

Target

2024-02-18_87a9b1c588a7913b47ab6f1488cf7b31_cryptolocker.exe
Size

385KB
MD5

87a9b1c588a7913b47ab6f1488cf7b31
SHA1

b103677fea445e72e3c795a645b5d712d41a6ec8
SHA256

679d214aee7de944f43295001eb37b9675acfa01b064d564c13f76ae69bb2caa
SHA512

1e0b1d35fc193faedcdf6fc3f9c2b6dbc20cdf343d78ca509b56a0a8ddbccd2d1ed3376e642c4cd030ea9a6887c82cce04ac2fd31893c20aad7ff0bf056ca109
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXO:nnOflT/ZFIjBz3xjTxynGUOUhXO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000014a5b-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2320	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
776	2024-02-18_87a9b1c588a7913b47ab6f1488cf7b31_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 776 wrote to memory of 2320	776	2024-02-18_87a9b1c588a7913b47ab6f1488cf7b31_cryptolocker.exe	28
PID 776 wrote to memory of 2320	776	2024-02-18_87a9b1c588a7913b47ab6f1488cf7b31_cryptolocker.exe	28
PID 776 wrote to memory of 2320	776	2024-02-18_87a9b1c588a7913b47ab6f1488cf7b31_cryptolocker.exe	28
PID 776 wrote to memory of 2320	776	2024-02-18_87a9b1c588a7913b47ab6f1488cf7b31_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-18_87a9b1c588a7913b47ab6f1488cf7b31_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_87a9b1c588a7913b47ab6f1488cf7b31_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:776
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2320

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
385KB

MD5
e31897fc53e793b81fd76fb44cb1c12e

SHA1
385f405f742ae5d58ddf2573c0736a7a780e8cfa

SHA256
85ec168ee2d239b93c08491931023d5543c99b0bd47b06d59f9b814d9faccc2f

SHA512
b639393ca0028671a751d96cb743c63e65c6fc8cbec3b966d880714f53cbe4d9c6d34f23fc2974ded6545a61d18bdcdb7de33fec7dd98a13bd74ab1c8477eeba

Download Submit
memory/776-0-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/776-2-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/776-1-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2320-16-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2320-15-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download