cac6179457a36e85f137eabf14c12169bc693b187c8e0ca3654fa6c430076360

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07/09/2024, 01:24

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General

Target

2024-09-07_d879e2d98b6de7cde7f7919334b847b7_cryptolocker.exe
Size

26KB
MD5

d879e2d98b6de7cde7f7919334b847b7
SHA1

beea5c6ce96a6d4e12c2b58ecc164c2bedc20bef
SHA256

cac6179457a36e85f137eabf14c12169bc693b187c8e0ca3654fa6c430076360
SHA512

eb570a8b28b9e89bc8d1d03dff2864aca546527591449627932b2e8af154273ab099174469f5fcce5bd2b11b03cafdf8c7b8a49785a266364ce5cd7e8cbf25e2
SSDEEP

384:bVCPwFRuFn65arz1ZhdaXFXSCVQTLfjDp6HMmHBdae:bVCPwFRo6CpwXFXSqQXfjAsmHBd7

Score

7^/10

discovery upx

Malware Config

Signatures

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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	2024-09-07_d879e2d98b6de7cde7f7919334b847b7_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3940	hasfj.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/412-0-0x0000000008000000-0x000000000800E000-memory.dmp	upx
behavioral2/files/0x000900000002346d-13.dat	upx
behavioral2/memory/412-18-0x0000000008000000-0x000000000800E000-memory.dmp	upx
behavioral2/memory/3940-27-0x0000000008000000-0x000000000800E000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-07_d879e2d98b6de7cde7f7919334b847b7_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hasfj.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 412 wrote to memory of 3940	412	2024-09-07_d879e2d98b6de7cde7f7919334b847b7_cryptolocker.exe	83
PID 412 wrote to memory of 3940	412	2024-09-07_d879e2d98b6de7cde7f7919334b847b7_cryptolocker.exe	83
PID 412 wrote to memory of 3940	412	2024-09-07_d879e2d98b6de7cde7f7919334b847b7_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-09-07_d879e2d98b6de7cde7f7919334b847b7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-07_d879e2d98b6de7cde7f7919334b847b7_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:412
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3940

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
26KB

MD5
6aec94f3947a08ec79c85fcb09a74372

SHA1
ff9e89759a6ac856e381e396e935fdc476c26e07

SHA256
aa26e43e2cdf09b9564a6c6e087f9fddc63b2d971a883d5f0c9c032f2647419d

SHA512
a393e5a1c0742c0021c4eeb6b1d535352e0e32ac70a0cc014851e7fe83adfb08a67b6ec8e2c3b7222d6c5bdf2b0d686fb1015b76121fb5bf92574099658b0ec0

Download Submit
memory/412-0-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download
memory/412-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/412-2-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/412-3-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/412-18-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download
memory/3940-20-0x0000000000780000-0x0000000000786000-memory.dmp

Filesize
24KB

Download
memory/3940-21-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/3940-27-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download