6974ae12e4d3281d7ea4275770f44cf2f07bdc5bed0cd7f182357634e354dc89

Analysis

max time kernel
148s
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
10/08/2024, 04:04

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General

Target

2024-08-10_784928881e547bdeeb076809ecc11a28_cryptolocker.exe
Size

36KB
MD5

784928881e547bdeeb076809ecc11a28
SHA1

78bbe1fd521214dc2a65a4b64575d798136ebaa6
SHA256

6974ae12e4d3281d7ea4275770f44cf2f07bdc5bed0cd7f182357634e354dc89
SHA512

4320bef1bffc4680b1d59c70a02f7a16c310ff8141d4c2808d3e47e1f35a98dda3e9a3e4e67f2d22fc1d48af370ceae4c954c425dd5222347f10ad4aca290022
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkIT6S:qDdFJy3QMOtEvwDpjjWMl7T6S

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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	2024-08-10_784928881e547bdeeb076809ecc11a28_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3008	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4964-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x00090000000233fc-13.dat	upx
behavioral2/memory/4964-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/3008-27-0x0000000000500000-0x0000000000510000-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	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-10_784928881e547bdeeb076809ecc11a28_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4964 wrote to memory of 3008	4964	2024-08-10_784928881e547bdeeb076809ecc11a28_cryptolocker.exe	86
PID 4964 wrote to memory of 3008	4964	2024-08-10_784928881e547bdeeb076809ecc11a28_cryptolocker.exe	86
PID 4964 wrote to memory of 3008	4964	2024-08-10_784928881e547bdeeb076809ecc11a28_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-08-10_784928881e547bdeeb076809ecc11a28_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-10_784928881e547bdeeb076809ecc11a28_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4964
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3008

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

Replay Monitor

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Downloads

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

Filesize
36KB

MD5
b3c037cd3dd8880d3372ac52ab549e40

SHA1
3dbc58f2447e35171f2febd6e6097afa39b40a5f

SHA256
14aaefd8e3f9074b51650220195ea77b93c8de75196154076657cd58f5e21dd6

SHA512
7ccb800bf96f6133cac1f7e31ecf4db55d6af2c3c5b2c7d0c1b63ba32c68148dcd0bbf1ec194fef6e1a53124bbdf9769b77c71ed0cbe914acab1ffed74590d6b

Download Submit
memory/3008-20-0x00000000007C0000-0x00000000007C6000-memory.dmp

Filesize
24KB

Download
memory/3008-26-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/3008-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4964-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4964-1-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/4964-2-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/4964-3-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/4964-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download