7d974daeee3ff53ebc6902ad1dae608020d8565f1f1923302bc1f7179580727c

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
27/09/2024, 04:47

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General

Target

2024-09-27_fd49a6140b823ad19efb80a96a370044_cryptolocker.exe
Size

37KB
MD5

fd49a6140b823ad19efb80a96a370044
SHA1

e062fa3b849b58f8df8d1ca6185e625d39654d09
SHA256

7d974daeee3ff53ebc6902ad1dae608020d8565f1f1923302bc1f7179580727c
SHA512

8fc2ea4cbfda1f3e2326f2361b69032234cfaa30a798fef1fc5673ceef36ad76985a6e11d1095796c994114b22f2bbbca281edf9583542bb6e096b33185d87f4
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkIT6J:qDdFJy3QMOtEvwDpjjWMl7T6J

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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	2024-09-27_fd49a6140b823ad19efb80a96a370044_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1116	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4240-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000b000000023423-13.dat	upx
behavioral2/memory/4240-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/1116-27-0x0000000000500000-0x0000000000510000-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	2024-09-27_fd49a6140b823ad19efb80a96a370044_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 4240 wrote to memory of 1116	4240	2024-09-27_fd49a6140b823ad19efb80a96a370044_cryptolocker.exe	82
PID 4240 wrote to memory of 1116	4240	2024-09-27_fd49a6140b823ad19efb80a96a370044_cryptolocker.exe	82
PID 4240 wrote to memory of 1116	4240	2024-09-27_fd49a6140b823ad19efb80a96a370044_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-27_fd49a6140b823ad19efb80a96a370044_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-27_fd49a6140b823ad19efb80a96a370044_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4240
- 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:1116

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\asih.exe

Filesize
37KB

MD5
4cde18a28261e23ce1101250f5aa9b55

SHA1
ba82190b1b14ca62e7fdbf44ad3fa62a43436e7d

SHA256
cc7086edd3a403b1c396d1650e01dd970f67e86405677253d6a11aaac3649fc6

SHA512
b52915758c594e30e77bb8e82b6ff711bc7428319752fa8219711f1b83c25480e810fe60ad678460b829e03365136a420972746092a1f9d454eb66a77ebbaed0

Download Submit
memory/1116-20-0x0000000000860000-0x0000000000866000-memory.dmp

Filesize
24KB

Download
memory/1116-26-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/1116-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4240-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4240-1-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/4240-2-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/4240-3-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/4240-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download