39a88dcc55395428bb5d8b9c13f6ef44f649bc32a88226f582a25938f3711686

Analysis

max time kernel
148s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
12/09/2024, 23:24

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General

Target

2024-09-12_debba4683329c73b3867f4f3f87f958a_cryptolocker.exe
Size

72KB
MD5

debba4683329c73b3867f4f3f87f958a
SHA1

33d66ff25f21e35347186ebf50a77f75c4db900c
SHA256

39a88dcc55395428bb5d8b9c13f6ef44f649bc32a88226f582a25938f3711686
SHA512

d1f6dd12a9e7f01d1fcb99e853768b4511e26df8ed858674aef97122d3e00890b0ab3df38f413bf989868fb809540a944e92ed9d37a5002bd0d7de2d63da0674
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUNZOe:DW60sllyWOtEvwDpjwF85F

Score

7^/10

discovery

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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	2024-09-12_debba4683329c73b3867f4f3f87f958a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2464	asih.exe

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	2024-09-12_debba4683329c73b3867f4f3f87f958a_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2980 wrote to memory of 2464	2980	2024-09-12_debba4683329c73b3867f4f3f87f958a_cryptolocker.exe	86
PID 2980 wrote to memory of 2464	2980	2024-09-12_debba4683329c73b3867f4f3f87f958a_cryptolocker.exe	86
PID 2980 wrote to memory of 2464	2980	2024-09-12_debba4683329c73b3867f4f3f87f958a_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-09-12_debba4683329c73b3867f4f3f87f958a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-12_debba4683329c73b3867f4f3f87f958a_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2980
- 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:2464

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
72KB

MD5
a1c5a5aa1ed1b3b5959be4d2087c8f99

SHA1
0b4b08348bda6409868678d9ae915e5b41b71e39

SHA256
7490d1c178be0fb0926b128fedbf0d24bd57b080c557ee6c5baba3cd8e087ade

SHA512
5173eb20e7751f5665532381db58d1624e1da9adec9b8963dd60f405b8ad03abc9896c509bf38e17669e94a6ead06dcd454af615e6a22d64f203e6ebad7cae7f

Download Submit
memory/2464-19-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2464-25-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/2464-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2980-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2980-2-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2980-3-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2980-1-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2980-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download