arkei | 99ae284534c8928e33330aa2c20dfa8445dc8189dbabff80cabf8606609d3afd

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
24-07-2024 12:57

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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/0x000800000002325a-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-1-5-21-1403246978-718555486-3105247137-1000\Control Panel\International\Geo\Nation	YGxtJPNn.exe

Executes dropped EXE 1 IoCs

pid	Process
1604	YGxtJPNn.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOHTMED.EXE	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\SQLDumper.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\Office16\ONENOTEM.EXE	YGxtJPNn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\onenoteshare.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOUC.EXE	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jrunscript.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\Java\jre-1.8\bin\unpack200.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\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DWTRIG20.EXE	YGxtJPNn.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxCalendarAppImm.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\jre\bin\jp2launcher.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jps.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\Mozilla Firefox\crashreporter.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\idlj.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\servertool.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\uninstall.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsStore_11910.1002.5.0_x64__8wekyb3d8bbwe\WinStore.App.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jdeps.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOXMLED.EXE	YGxtJPNn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_4.4.8204.0_x64__8wekyb3d8bbwe\Microsoft.MicrosoftSolitaireCollection.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Download\{8A69D345-D564-463C-AFF1-A69D9E530F96}\110.0.5481.104\chrome_installer.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmid.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msotd.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.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeApp.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Browser\WCChromeExtn\WCChromeNativeMessagingHost.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\serialver.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\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\javaws.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 (x86)\Google\Update\1.3.36.151\GoogleCrashHandler64.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate32.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\Microsoft Office\root\Office16\NAMECONTROLSERVER.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\Microsoft Office\root\Office16\WINWORD.EXE	YGxtJPNn.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.GetHelp_10.1706.13331.0_x64__8wekyb3d8bbwe\GetHelp.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdate.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\wsgen.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\Java\jre-1.8\bin\jjs.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\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection64.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\110.0.5481.104\Installer\chrmstp.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\misc.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoia.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\reader_sl.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\tnameserv.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Eula.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\110.0.5481.104\Installer\setup.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 (x86)\Adobe\Acrobat Reader DC\Reader\arh.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\kinit.exe	YGxtJPNn.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javacpl.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\Microsoft Office\root\Office16\EXCEL.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
1040	3564	WerFault.exe	82

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

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3564 wrote to memory of 1604	3564	58439dcc59f801b60ab3fda64fd1a5e3ae1a0de95dec6abff06e047603187ea1.exe	83
PID 3564 wrote to memory of 1604	3564	58439dcc59f801b60ab3fda64fd1a5e3ae1a0de95dec6abff06e047603187ea1.exe	83
PID 3564 wrote to memory of 1604	3564	58439dcc59f801b60ab3fda64fd1a5e3ae1a0de95dec6abff06e047603187ea1.exe	83
PID 1604 wrote to memory of 4976	1604	YGxtJPNn.exe	85
PID 1604 wrote to memory of 4976	1604	YGxtJPNn.exe	85
PID 1604 wrote to memory of 4976	1604	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:3564
- 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:1604
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\32ed3f29.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4976
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3564 -s 560
  2⤵
  - Program crash
  PID:1040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3564 -ip 3564
1⤵
PID:976

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\S5KAZR04\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\04F13115.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

Download Submit
C:\Users\Admin\AppData\Local\Temp\32ed3f29.bat

Filesize
191B

MD5
199119d6ea30c5a3b3cce812cb90167e

SHA1
48c039c8a581cd74df6e5ded5b5a006bb70b62c3

SHA256
c63037339421f8ecc4ef3fe99a286c582d49d083a94696333c2bc42a4221203c

SHA512
27a3ddac2066fa203c7e5f8d90a0a40a95aab1b4742a28ac1a4d0e1bedf19807cdab3f34a67a5d9c8651b9fd07ec0f9ed04b92872bba88f9e77d448d00bdbde0

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

Filesize
15KB

MD5
f7d21de5c4e81341eccd280c11ddcc9a

SHA1
d4e9ef10d7685d491583c6fa93ae5d9105d815bd

SHA256
4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794

SHA512
e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3

Download Submit
memory/1604-4-0x0000000000A20000-0x0000000000A29000-memory.dmp

Filesize
36KB

Download
memory/1604-46-0x0000000000A20000-0x0000000000A29000-memory.dmp

Filesize
36KB

Download
memory/3564-0-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/3564-50-0x0000000000620000-0x000000000063F000-memory.dmp

Filesize
124KB

Download
memory/3564-49-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/3564-51-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/3564-52-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/3564-53-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download