7ed9e880a1b6b26d9efba4e147e1bfda710cf4ddba54763dd38e58a887116d27

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
27/03/2024, 20:30

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General

Target

2024-03-27_3ea8d5157d16a31fbf966c4995e761f0_cryptolocker.exe
Size

37KB
MD5

3ea8d5157d16a31fbf966c4995e761f0
SHA1

781a20f13f131b92c6841b7e7bce04c97add17e4
SHA256

7ed9e880a1b6b26d9efba4e147e1bfda710cf4ddba54763dd38e58a887116d27
SHA512

65906cb866bc61a96974d27e6673fb6c894aafea45809afe8eee8d19a7e3deaa16c2cf4e00ccdaaa1a8e530faa708cd074f6948d1baf43198e208dd011562ad4
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLenUf:ZzFbxmLPWQMOtEvwDpjLe6

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000231e1-13.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	2024-03-27_3ea8d5157d16a31fbf966c4995e761f0_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3016	misid.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1600 wrote to memory of 3016	1600	2024-03-27_3ea8d5157d16a31fbf966c4995e761f0_cryptolocker.exe	86
PID 1600 wrote to memory of 3016	1600	2024-03-27_3ea8d5157d16a31fbf966c4995e761f0_cryptolocker.exe	86
PID 1600 wrote to memory of 3016	1600	2024-03-27_3ea8d5157d16a31fbf966c4995e761f0_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-03-27_3ea8d5157d16a31fbf966c4995e761f0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-27_3ea8d5157d16a31fbf966c4995e761f0_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1600
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3016

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
37KB

MD5
10d183b414a372ed90dbf4fa2d466bf7

SHA1
bc2336db489f846496d8959c2c0a805bf9e686b7

SHA256
2a973767172be11c7e4b1e06b4921738e25f38f6640350b437ca1d5827988ba8

SHA512
ad3765312ff0638dd9806b96867f126d8cf7483cb1a895a106099b5e46b53ee116f3d5d3e2fb52aa9450ff41c5ed17fc76fcf2a6c5ff15d5aae7d425d27340e3

Download Submit
memory/1600-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/1600-1-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/1600-2-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/1600-3-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/1600-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/3016-18-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/3016-20-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/3016-26-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/3016-27-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download