b353732d67c5832b45f3cfd329998d92c3517ae1bc1c17f695b187b0e8499829

Analysis

max time kernel
148s
max time network
150s
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, 06:21

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General

Target

2024-11-21_049a77a8bcbf6dd78b976e48755260e4_cryptolocker.exe
Size

54KB
MD5

049a77a8bcbf6dd78b976e48755260e4
SHA1

0b514ddb01a022dccadc1315f6a43d45ad12c758
SHA256

b353732d67c5832b45f3cfd329998d92c3517ae1bc1c17f695b187b0e8499829
SHA512

310c520bea3081cec48acb68f0cef1a93a950f88980aa88984304f2c789f3c7b4fc2892974612e20a6e0665b5eb2d1af0f8efbdb3185544814dd204c3f7dd993
SSDEEP

768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YY1J+OTOk/9o:z6QFElP6n+gKmddpMOtEvwDpj31ik/9o

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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	2024-11-21_049a77a8bcbf6dd78b976e48755260e4_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3068	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/404-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000c000000023b30-13.dat	upx
behavioral2/memory/404-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/3068-26-0x0000000000500000-0x0000000000510000-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	2024-11-21_049a77a8bcbf6dd78b976e48755260e4_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 404 wrote to memory of 3068	404	2024-11-21_049a77a8bcbf6dd78b976e48755260e4_cryptolocker.exe	82
PID 404 wrote to memory of 3068	404	2024-11-21_049a77a8bcbf6dd78b976e48755260e4_cryptolocker.exe	82
PID 404 wrote to memory of 3068	404	2024-11-21_049a77a8bcbf6dd78b976e48755260e4_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-11-21_049a77a8bcbf6dd78b976e48755260e4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-21_049a77a8bcbf6dd78b976e48755260e4_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:404
- 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:3068

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
54KB

MD5
5578a77efb2146892ab383b98ecd7d2a

SHA1
f30dee64add4bbcf2320ac724875a205b963dcd4

SHA256
5788a9f2ce307e69c0777123db653bb4b4fefbece48e1da5b7a2af9e286ba89a

SHA512
42697683faeb2b5861064db0481e1d63c741eae5c93e5a3d63c348ca1c8cc9cacb6996915f41ce480e311b90a1449f42e09050061331417b5cbf480566cd3b39

Download Submit
memory/404-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/404-1-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/404-2-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/404-3-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/404-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3068-19-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/3068-25-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/3068-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download