arkei | 99ae284534c8928e33330aa2c20dfa8445dc8189dbabff80cabf8606609d3afd

Analysis

max time kernel
134s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
24-07-2024 12:26

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General

Target

58439dcc59f801b60ab3fda64fd1a5e3ae1a0de95dec6abff06e047603187ea1.exe
Size

267KB
MD5

78e2c97b3c64d2ca616d66d01182905f
SHA1

b124245b6716dacbbf84e1aede6b2854a5a8e8ca
SHA256

58439dcc59f801b60ab3fda64fd1a5e3ae1a0de95dec6abff06e047603187ea1
SHA512

30ba7b76a83a1f9a3eff3d7e536e152957db5670f0907d894b777f42098e5e30bb3d79e13dcf2e6a535626890cda983162202e3e022fd3a59a97039c36fd6b30
SSDEEP

3072:vsKwyFGOjBfvmRGEmRsGtgGqBXtdi6305UKvwUGCH:004iBGRGXOGqkUUC

Score

10^/10

arkei default aspackv2 discovery stealer

Malware Config

Extracted

Family

arkei

Botnet

Default

coin-file-file-19.com/tratata.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/0x0009000000023469-3.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-1-5-21-1176886754-713327781-2233697964-1000\Control Panel\International\Geo\Nation	YGxtJPNn.exe

Executes dropped EXE 1 IoCs

pid	Process
3016	YGxtJPNn.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jdb.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\WINWORD.EXE	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\FLTLDR.EXE	YGxtJPNn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_x64__8wekyb3d8bbwe\Microsoft.Msn.Weather.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\createdump.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOSREC.EXE	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jjs.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\policytool.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\WORDICON.EXE	YGxtJPNn.exe
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\protocolhandler.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\View3D.ResourceResolver.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroTextExtractor.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\native2ascii.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\unpack200.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOICONS.EXE	YGxtJPNn.exe
File opened for modification	C:\Program Files\Mozilla Firefox\uninstall\helper.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\YourPhone.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javafxpackager.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\rmid.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\wsimport.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\filecompare.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_4.4.8204.0_x64__8wekyb3d8bbwe\Solitaire.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jconsole.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Integration\Addons\OneDriveSetup.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrServicesUpdater.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmic.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\klist.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\pack200.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.Loader.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Mozilla Firefox\private_browsing.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\fmui\fmui.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeApp.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\7-Zip\Uninstall.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstatd.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ssvagent.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\MSOHTMED.EXE	YGxtJPNn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\onenoteim.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\Microsoft.Photos.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSQRY32.EXE	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE	YGxtJPNn.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxTsr.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.106\elevation_service.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jabswitch.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SDXHelper.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Mozilla Firefox\default-browser-agent.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Mozilla Firefox\minidump-analyzer.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\unpack200.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\DATABASECOMPARE.EXE	YGxtJPNn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\PaintStudio.View.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ktab.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Mozilla Firefox\plugin-container.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\GRAPH.EXE	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoev.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\Cortana.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxGameOverlay_1.46.11001.0_x64__8wekyb3d8bbwe\GameBar.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jar.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ORGCHART.EXE	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PerfBoost.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Windows Mail\wab.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jhat.exe	YGxtJPNn.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2224	3028	WerFault.exe	83

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	58439dcc59f801b60ab3fda64fd1a5e3ae1a0de95dec6abff06e047603187ea1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	YGxtJPNn.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 3016	3028	58439dcc59f801b60ab3fda64fd1a5e3ae1a0de95dec6abff06e047603187ea1.exe	84
PID 3028 wrote to memory of 3016	3028	58439dcc59f801b60ab3fda64fd1a5e3ae1a0de95dec6abff06e047603187ea1.exe	84
PID 3028 wrote to memory of 3016	3028	58439dcc59f801b60ab3fda64fd1a5e3ae1a0de95dec6abff06e047603187ea1.exe	84
PID 3016 wrote to memory of 3048	3016	YGxtJPNn.exe	85
PID 3016 wrote to memory of 3048	3016	YGxtJPNn.exe	85
PID 3016 wrote to memory of 3048	3016	YGxtJPNn.exe	85

C:\Users\Admin\AppData\Local\Temp\58439dcc59f801b60ab3fda64fd1a5e3ae1a0de95dec6abff06e047603187ea1.exe
"C:\Users\Admin\AppData\Local\Temp\58439dcc59f801b60ab3fda64fd1a5e3ae1a0de95dec6abff06e047603187ea1.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3028
- C:\Users\Admin\AppData\Local\Temp\YGxtJPNn.exe
  C:\Users\Admin\AppData\Local\Temp\YGxtJPNn.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:3016
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\30e7206d.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3048
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3028 -s 560
  2⤵
  - Program crash
  PID:2224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3028 -ip 3028
1⤵
PID:2588

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\Microsoft\Windows\INetCache\IE\I0E3LJN0\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\090A261A.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

Download Submit
C:\Users\Admin\AppData\Local\Temp\30e7206d.bat

Filesize
191B

MD5
a8dfd0e15b33df5e060a6ba6c10cb2d8

SHA1
174d3d58a4771d7c9ea7b259158a3f55b482295c

SHA256
efe2299ce8439e6486cb853d2b8f040ed3114c87c66c875bcf744b1122a6987f

SHA512
8898de7707081e9941207bf49e936104f79ef9a90e31ea14caa801b857adf9fa5fdc379aee017e05c44c10b468501ccfd7cf19e7d63094a363c226db1ffaf1bf

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

Filesize
15KB

MD5
f7d21de5c4e81341eccd280c11ddcc9a

SHA1
d4e9ef10d7685d491583c6fa93ae5d9105d815bd

SHA256
4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794

SHA512
e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3

Download Submit
memory/3016-5-0x00000000009A0000-0x00000000009A9000-memory.dmp

Filesize
36KB

Download
memory/3016-46-0x00000000009A0000-0x00000000009A9000-memory.dmp

Filesize
36KB

Download
memory/3028-0-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/3028-50-0x0000000000560000-0x000000000057F000-memory.dmp

Filesize
124KB

Download
memory/3028-49-0x00000000006C0000-0x00000000007C0000-memory.dmp

Filesize
1024KB

Download
memory/3028-51-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/3028-52-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/3028-53-0x0000000000560000-0x000000000057F000-memory.dmp

Filesize
124KB

Download
memory/3028-54-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download