f20def35a5e5efc92f4f1a2c16ec8a646170845a22ef2e1297aad4ad89c4a341

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21/11/2024, 06:31

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General

Target

2024-11-21_2fe716d9b69a77df78e5d1be17298969_cryptolocker.exe
Size

64KB
MD5

2fe716d9b69a77df78e5d1be17298969
SHA1

01fd6ed906d80c013a26f873d3434ae2a5ed4167
SHA256

f20def35a5e5efc92f4f1a2c16ec8a646170845a22ef2e1297aad4ad89c4a341
SHA512

56a71e61fa258488cffa63c582514f6227aa68ecce32fdb4bdb8d57549a57d2b47a5092ef53d6e993c6052bf7ed60a9d11222bfcfd60e902401bd34559dc5737
SSDEEP

1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTOOZl:T6a+rdOOtEvwDpjNX

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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	2024-11-21_2fe716d9b69a77df78e5d1be17298969_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3912	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2648-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x0009000000023c4e-13.dat	upx
behavioral2/memory/2648-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/3912-26-0x0000000000500000-0x0000000000510000-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	2024-11-21_2fe716d9b69a77df78e5d1be17298969_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2648 wrote to memory of 3912	2648	2024-11-21_2fe716d9b69a77df78e5d1be17298969_cryptolocker.exe	82
PID 2648 wrote to memory of 3912	2648	2024-11-21_2fe716d9b69a77df78e5d1be17298969_cryptolocker.exe	82
PID 2648 wrote to memory of 3912	2648	2024-11-21_2fe716d9b69a77df78e5d1be17298969_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-11-21_2fe716d9b69a77df78e5d1be17298969_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-21_2fe716d9b69a77df78e5d1be17298969_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2648
- 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:3912

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
64KB

MD5
7806e1a57859139ebfb6bad96cc15793

SHA1
71f97507bcade341b0dfa590fabeafe995c7febf

SHA256
c97499bca13160123fd87019279227d036e72f723df197b9528fc384b6f9a9a1

SHA512
29cac7762063d751c6c97284c1269dd28a895c240fe0c4239997faef47cdc477f1da846c0204e7c806f80d92c508b759d03f672012865a6f9f27e26f4c8bafef

Download Submit
memory/2648-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2648-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2648-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2648-3-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/2648-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3912-19-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/3912-20-0x0000000000870000-0x0000000000876000-memory.dmp

Filesize
24KB

Download
memory/3912-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download