fb9d172e5ec50ce019e5db0354292b4a167cbf22aa8456e9c35acf3fb97bfca0

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
05/09/2024, 12:25

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General

Target

2024-09-05_0bd445b6f1f0fdfa989d4580acd60115_cryptolocker.exe
Size

68KB
MD5

0bd445b6f1f0fdfa989d4580acd60115
SHA1

8460937e07ad0d04ac272a1dbaf08cbbbd2dcbe9
SHA256

fb9d172e5ec50ce019e5db0354292b4a167cbf22aa8456e9c35acf3fb97bfca0
SHA512

08164f632cb4a7c4a90798c8592068ee38cfefece3fbcc550f67f1b3dc001853f97978b671894ad7b1db4891087023af583e62c9fa9f32a626f8a81ff1a9c35b
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjYibAoQRr:1nK6a+qdOOtEvwDpjK

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	2024-09-05_0bd445b6f1f0fdfa989d4580acd60115_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1768	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2436-0-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/files/0x00090000000233f5-13.dat	upx
behavioral2/memory/2436-17-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/memory/1768-26-0x0000000000500000-0x000000000050F311-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	2024-09-05_0bd445b6f1f0fdfa989d4580acd60115_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 2436 wrote to memory of 1768	2436	2024-09-05_0bd445b6f1f0fdfa989d4580acd60115_cryptolocker.exe	83
PID 2436 wrote to memory of 1768	2436	2024-09-05_0bd445b6f1f0fdfa989d4580acd60115_cryptolocker.exe	83
PID 2436 wrote to memory of 1768	2436	2024-09-05_0bd445b6f1f0fdfa989d4580acd60115_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-09-05_0bd445b6f1f0fdfa989d4580acd60115_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-05_0bd445b6f1f0fdfa989d4580acd60115_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2436
- 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:1768

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
69KB

MD5
73bc0dbc8b2b7364dd8a38045d384568

SHA1
4eb5e2d620db9925a42de414b2fdeb5976e3f42c

SHA256
821473b0266ec472cf3840a35ada2a71248006f3a063279eb689fe0210b46c52

SHA512
8177bfac495e124c8057b5474f0e4c0744affa6078643f259096a7fefc9a1a339dc96a0bc32446a005c65c3edb36cec456954308ac310fa1e5359d543c878851

Download Submit
memory/1768-20-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/1768-19-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/1768-26-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2436-0-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2436-1-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/2436-2-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/2436-3-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/2436-17-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download