arkei | 6aa9785c788205916c58c12be189e23101c3b8137e08a851061968d6e1826b59

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
25/07/2024, 03:31

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General

Target

6aa9785c788205916c58c12be189e23101c3b8137e08a851061968d6e1826b59.exe
Size

175KB
MD5

9e31bf43798ffd4d029c94caff29023e
SHA1

d96e79d2bd84ec6ce72d5195cd7cb55ac5db2e68
SHA256

6aa9785c788205916c58c12be189e23101c3b8137e08a851061968d6e1826b59
SHA512

8ad8bec5075be1e803724d1d962b2f99badb96b94f992c2005c5fb5e389af6378450b624c21c940579140b6b5a34b4587645be7035f031125b3b93252e4d124a
SSDEEP

3072:K/E8k9V0JIYmDdMh1+foxoSaS4eH53U/tV+FNb8EGBGCH:K/E8k9SgD6/Tmb/r+Fp8EG0

Score

10^/10

arkei default aspackv2 discovery stealer

Malware Config

Extracted

Family

arkei

Botnet

Default

62.3.12.9/oCWKaZ5eh7.php

Signatures

Arkei
Arkei is an infostealer written in C++.
stealer arkei

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral2/files/0x00080000000234b2-3.dat	aspack_v212_v242

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-1-5-21-2650514177-1034912467-4025611726-1000\Control Panel\International\Geo\Nation	boxRcG.exe

Executes dropped EXE 1 IoCs

pid	Process
3588	boxRcG.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxIdentityProvider_12.50.6001.0_x64__8wekyb3d8bbwe\XboxIdp.exe	boxRcG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\java-rmi.exe	boxRcG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection64.exe	boxRcG.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebMediaExtensions_1.0.20875.0_x64__8wekyb3d8bbwe\Microsoft.WebMediaExtensions.exe	boxRcG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msotd.exe	boxRcG.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\Win32Bridge.Server.exe	boxRcG.exe
File opened for modification	C:\Program Files\7-Zip\7z.exe	boxRcG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstack.exe	boxRcG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\CLVIEW.EXE	boxRcG.exe
File opened for modification	C:\Program Files\Windows Mail\wabmig.exe	boxRcG.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.GetHelp_10.1706.13331.0_x64__8wekyb3d8bbwe\GetHelp.exe	boxRcG.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	boxRcG.exe
File opened for modification	C:\Program Files (x86)\Google\Update\DisabledGoogleUpdate.exe	boxRcG.exe
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe	boxRcG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javaw.exe	boxRcG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.NetFX45.exe	boxRcG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOSYNC.EXE	boxRcG.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\64BitMAPIBroker.exe	boxRcG.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\policytool.exe	boxRcG.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.People_10.1902.633.0_x64__8wekyb3d8bbwe\PeopleApp.exe	boxRcG.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Wallet_2.4.18324.0_x64__8wekyb3d8bbwe\Microsoft.Wallet.exe	boxRcG.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\createdump.exe	boxRcG.exe
File opened for modification	C:\Program Files\Mozilla Firefox\minidump-analyzer.exe	boxRcG.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\java-rmi.exe	boxRcG.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroTextExtractor.exe	boxRcG.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32Info.exe	boxRcG.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateBroker.exe	boxRcG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jjs.exe	boxRcG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\officeappguardwin32.exe	boxRcG.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxCalendarAppImm.exe	boxRcG.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroBroker.exe	boxRcG.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\servertool.exe	boxRcG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\XLICONS.EXE	boxRcG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOXMLED.EXE	boxRcG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SkypeSrv\SKYPESERVER.EXE	boxRcG.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateCore.exe	boxRcG.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javaw.exe	boxRcG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE	boxRcG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SETLANG.EXE	boxRcG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\servertool.exe	boxRcG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection.exe	boxRcG.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1906.55.0_x64__8wekyb3d8bbwe\Calculator.exe	boxRcG.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ktab.exe	boxRcG.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\orbd.exe	boxRcG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SDXHelper.exe	boxRcG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SDXHelperBgt.exe	boxRcG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SELFCERT.EXE	boxRcG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javaws.exe	boxRcG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jmap.exe	boxRcG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\wsimport.exe	boxRcG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOICONS.EXE	boxRcG.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCamera_2018.826.98.0_x64__8wekyb3d8bbwe\WindowsCamera.exe	boxRcG.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\wab.exe	boxRcG.exe
File opened for modification	C:\Program Files\Mozilla Firefox\pingsender.exe	boxRcG.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroLayoutRecognizer\AcroLayoutRecognizer.exe	boxRcG.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.106\elevation_service.exe	boxRcG.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.106\notification_helper.exe	boxRcG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstat.exe	boxRcG.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_2.34.28001.0_x64__8wekyb3d8bbwe\GameBar.exe	boxRcG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\java.exe	boxRcG.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\kinit.exe	boxRcG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\POWERPNT.EXE	boxRcG.exe
File opened for modification	C:\Program Files\Mozilla Firefox\default-browser-agent.exe	boxRcG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jabswitch.exe	boxRcG.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 3 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6aa9785c788205916c58c12be189e23101c3b8137e08a851061968d6e1826b59.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	boxRcG.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3656 wrote to memory of 3588	3656	6aa9785c788205916c58c12be189e23101c3b8137e08a851061968d6e1826b59.exe	84
PID 3656 wrote to memory of 3588	3656	6aa9785c788205916c58c12be189e23101c3b8137e08a851061968d6e1826b59.exe	84
PID 3656 wrote to memory of 3588	3656	6aa9785c788205916c58c12be189e23101c3b8137e08a851061968d6e1826b59.exe	84
PID 3588 wrote to memory of 2928	3588	boxRcG.exe	88
PID 3588 wrote to memory of 2928	3588	boxRcG.exe	88
PID 3588 wrote to memory of 2928	3588	boxRcG.exe	88

C:\Users\Admin\AppData\Local\Temp\6aa9785c788205916c58c12be189e23101c3b8137e08a851061968d6e1826b59.exe
"C:\Users\Admin\AppData\Local\Temp\6aa9785c788205916c58c12be189e23101c3b8137e08a851061968d6e1826b59.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3656
- C:\Users\Admin\AppData\Local\Temp\boxRcG.exe
  C:\Users\Admin\AppData\Local\Temp\boxRcG.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3588
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\1771230c.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2928

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\Microsoft\Windows\INetCache\IE\WZ04RUV6\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\1771230c.bat

Filesize
187B

MD5
87e101e14e01070b71e032d7958695df

SHA1
bb0bd881522dd79903d3c75334a3c00a773316b7

SHA256
906bbabbcb69402ac7ceab9f1a6ee88d0adf468f13d48250fd2c949308a87b6c

SHA512
5c567f0c7b0e692ab53f1f67ff53b2a7eaadd4864ef3501206b1ea765f88220c506783021f0ff3864a39bad16741456cda5802581aa6bfa64e5140ebf46b4e8b

Download Submit
C:\Users\Admin\AppData\Local\Temp\2B3668E9.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

Download Submit
C:\Users\Admin\AppData\Local\Temp\boxRcG.exe

Filesize
15KB

MD5
f7d21de5c4e81341eccd280c11ddcc9a

SHA1
d4e9ef10d7685d491583c6fa93ae5d9105d815bd

SHA256
4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794

SHA512
e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3

Download Submit
memory/3588-5-0x0000000000D80000-0x0000000000D89000-memory.dmp

Filesize
36KB

Download
memory/3588-45-0x0000000000D80000-0x0000000000D89000-memory.dmp

Filesize
36KB

Download
memory/3656-0-0x0000000000C20000-0x0000000000C61000-memory.dmp

Filesize
260KB

Download
memory/3656-47-0x0000000000C20000-0x0000000000C61000-memory.dmp

Filesize
260KB

Download