6054312339d49008c081dbc8c3e9246c95accd77177e59796ab17be00c6df6a0

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01-09-2024 20:06

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General

Target

2024-09-01_1a43645a2be7cb9c453531a06c49febe_cryptolocker.exe
Size

36KB
MD5

1a43645a2be7cb9c453531a06c49febe
SHA1

24d78a8d1b56221fbf539ce4e8be913f222fd5eb
SHA256

6054312339d49008c081dbc8c3e9246c95accd77177e59796ab17be00c6df6a0
SHA512

eaa52d27af5bd43ce6616fcd0b6b0dc456bc05db5a5292ce034d6d1b97fb4aaa6229f146b8611a7f4c3e5c77e98451e57d06e264cb2f552b5301b4dfbe87e3ae
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkIT65:qDdFJy3QMOtEvwDpjjWMl7T65

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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	2024-09-01_1a43645a2be7cb9c453531a06c49febe_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1936	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2748-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x0009000000023474-13.dat	upx
behavioral2/memory/2748-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/1936-27-0x0000000000500000-0x0000000000510000-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	2024-09-01_1a43645a2be7cb9c453531a06c49febe_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 2748 wrote to memory of 1936	2748	2024-09-01_1a43645a2be7cb9c453531a06c49febe_cryptolocker.exe	86
PID 2748 wrote to memory of 1936	2748	2024-09-01_1a43645a2be7cb9c453531a06c49febe_cryptolocker.exe	86
PID 2748 wrote to memory of 1936	2748	2024-09-01_1a43645a2be7cb9c453531a06c49febe_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-09-01_1a43645a2be7cb9c453531a06c49febe_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-01_1a43645a2be7cb9c453531a06c49febe_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2748
- 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:1936

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
36KB

MD5
93f2a24aa3951869f36d2a03711c60a2

SHA1
7bf0b81fd1ee3e977fdadf2202e1b913f4875083

SHA256
67091685b0594ef8b03842944a6749ec71f353e3f085dfa388f456a2ac368eb2

SHA512
bdb894855b50cb6aa2dfbb1097541d911d5e0bb16ec91359a715fba2e4e9443b36cb7337d98223937e4070e996fa3a546f20baf614fd4cfea47fa9712f671801

Download Submit
memory/1936-20-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/1936-26-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/1936-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2748-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2748-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2748-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2748-3-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/2748-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download