8551b36540f1bf97f2974dbcf2cf87896cb50fef4d731a1c4aafdc1f337d1b67

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
09/09/2024, 22:26

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General

Target

2024-09-09_b146c1d4d21e2ae3f9b266354b01ef34_cryptolocker.exe
Size

80KB
MD5

b146c1d4d21e2ae3f9b266354b01ef34
SHA1

5fbbf48a3affacf0674db414c5494d606db0ad69
SHA256

8551b36540f1bf97f2974dbcf2cf87896cb50fef4d731a1c4aafdc1f337d1b67
SHA512

8a1c5219874a8c8342537d54a18a079684270376746f7bac4d24d65d9d282581b4c5d77581caf09ae37cda43d66f01d7422cba0668782d55e7fc29fa2424e16d
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsoLktN2r:X6a+SOtEvwDpjBZYvQd25

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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	2024-09-09_b146c1d4d21e2ae3f9b266354b01ef34_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1264	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	2024-09-09_b146c1d4d21e2ae3f9b266354b01ef34_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 4084 wrote to memory of 1264	4084	2024-09-09_b146c1d4d21e2ae3f9b266354b01ef34_cryptolocker.exe	86
PID 4084 wrote to memory of 1264	4084	2024-09-09_b146c1d4d21e2ae3f9b266354b01ef34_cryptolocker.exe	86
PID 4084 wrote to memory of 1264	4084	2024-09-09_b146c1d4d21e2ae3f9b266354b01ef34_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-09-09_b146c1d4d21e2ae3f9b266354b01ef34_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-09_b146c1d4d21e2ae3f9b266354b01ef34_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4084
- 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:1264

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
81KB

MD5
0e6e119c8f65be212a2b84077f1e7960

SHA1
13b3e8868d1cb7812eb3fcf33d4f12a046338cfa

SHA256
f250a69a7f66e2b46857d3cf9248a75615808369aea7ab1a0ba52acf9f14384b

SHA512
a3c216c44d3367e52822614ee19b061dd9f94ac1c34b055dc95c5b4865d4776909e194dc14c679b3f3cbb72fe02235c648724ae629663100990b1825d3036bf7

Download Submit
memory/1264-17-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/1264-18-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/4084-0-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/4084-1-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/4084-2-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download