arkei | c634d3b81cf3991d24b037fdb80bacfb576216c3768149432b3e799583ef7b21

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
24-07-2024 16:50

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General

Target

c634d3b81cf3991d24b037fdb80bacfb576216c3768149432b3e799583ef7b21.exe
Size

281KB
MD5

a131f7c0c6109b3d701767b24a1ec9b8
SHA1

2d42e6211039255898af5606ce8f7c60b31782de
SHA256

c634d3b81cf3991d24b037fdb80bacfb576216c3768149432b3e799583ef7b21
SHA512

a7724856692645bf37c3504771895cda1d75e9d09a9b15d923e0bd5aa323c9949ff5fe790724eb89b4cdeb3631688b5d07edb2d2bdbb2ef6462ac72cebd001fd
SSDEEP

6144:8oTJaMlWeC/iKbHiiq1YmNin91Izx2KQcVWMo4:8uzlWeC/iKbfeSnox7

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
behavioral1/files/0x00080000000120fd-3.dat	aspack_v212_v242

Executes dropped EXE 1 IoCs

pid	Process
2416	brTOGrD.exe

Loads dropped DLL 2 IoCs

pid	Process
2688	c634d3b81cf3991d24b037fdb80bacfb576216c3768149432b3e799583ef7b21.exe
2688	c634d3b81cf3991d24b037fdb80bacfb576216c3768149432b3e799583ef7b21.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jre7\bin\javaws.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\Installer\chrmstp.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jdb.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\tnameserv.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jre7\bin\ssvagent.exe	brTOGrD.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AdobeCollabSync.exe	brTOGrD.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Setup Files\{AC76BA86-7AD7-1033-7B44-A90000000001}\Setup.exe	brTOGrD.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\wabmig.exe	brTOGrD.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\WinMail.exe	brTOGrD.exe
File opened for modification	C:\Program Files\DVD Maker\DVDMaker.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Microsoft Office\Office14\MSOHTMED.EXE	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\pack200.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jre7\bin\jabswitch.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jre7\bin\policytool.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Microsoft Games\FreeCell\FreeCell.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Windows Mail\wabmig.exe	brTOGrD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\kinit.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\javacpl.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jps.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Mozilla Firefox\updater.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\unpack200.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Mozilla Firefox\default-browser-agent.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Windows Defender\MSASCui.exe	brTOGrD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSTORE.EXE	brTOGrD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PPTICO.EXE	brTOGrD.exe
File opened for modification	C:\Program Files\7-Zip\7z.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\rmid.exe	brTOGrD.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc-cache-gen.exe	brTOGrD.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\sidebar.exe	brTOGrD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\GROOVEMN.EXE	brTOGrD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSOSYNC.EXE	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javah.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\native2ascii.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe	brTOGrD.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\reader_sl.exe	brTOGrD.exe
File opened for modification	C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\rmid.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Microsoft Games\Multiplayer\Spades\shvlzm.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javap.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\wsimport.exe	brTOGrD.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroTextExtractor.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\rmiregistry.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Microsoft Games\Purble Place\PurblePlace.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\lib\nbexec.exe	brTOGrD.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateBroker.exe	brTOGrD.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Install\{DDB7E7A7-D625-45EC-93C8-C15199469555}\chrome_installer.exe	brTOGrD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OUTLOOK.EXE	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jabswitch.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\java.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jre7\bin\klist.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\chrome_pwa_launcher.exe	brTOGrD.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\uninstall.exe	brTOGrD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSACCESS.EXE	brTOGrD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\SCANPST.EXE	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\javaw.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Microsoft Games\Multiplayer\Checkers\chkrzm.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Mozilla Firefox\private_browsing.exe	brTOGrD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\SETLANG.EXE	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jre7\bin\rmid.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jre7\bin\servertool.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\ktab.exe	brTOGrD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\pack200.exe	brTOGrD.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	c634d3b81cf3991d24b037fdb80bacfb576216c3768149432b3e799583ef7b21.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	brTOGrD.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 2416	2688	c634d3b81cf3991d24b037fdb80bacfb576216c3768149432b3e799583ef7b21.exe	30
PID 2688 wrote to memory of 2416	2688	c634d3b81cf3991d24b037fdb80bacfb576216c3768149432b3e799583ef7b21.exe	30
PID 2688 wrote to memory of 2416	2688	c634d3b81cf3991d24b037fdb80bacfb576216c3768149432b3e799583ef7b21.exe	30
PID 2688 wrote to memory of 2416	2688	c634d3b81cf3991d24b037fdb80bacfb576216c3768149432b3e799583ef7b21.exe	30
PID 2416 wrote to memory of 3044	2416	brTOGrD.exe	32
PID 2416 wrote to memory of 3044	2416	brTOGrD.exe	32
PID 2416 wrote to memory of 3044	2416	brTOGrD.exe	32
PID 2416 wrote to memory of 3044	2416	brTOGrD.exe	32

C:\Users\Admin\AppData\Local\Temp\c634d3b81cf3991d24b037fdb80bacfb576216c3768149432b3e799583ef7b21.exe
"C:\Users\Admin\AppData\Local\Temp\c634d3b81cf3991d24b037fdb80bacfb576216c3768149432b3e799583ef7b21.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2688
- C:\Users\Admin\AppData\Local\Temp\brTOGrD.exe
  C:\Users\Admin\AppData\Local\Temp\brTOGrD.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2416
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\541e7aca.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3044

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\541e7aca.bat

Filesize
189B

MD5
60fef086cc620aafd40a8998b98fca42

SHA1
e8df1dfea6ea7fed49a87e35b57d0c2d5de5eae0

SHA256
0409af030d0b725fdee40d48893e95106fa9521d1cbcc7544af3e39dad22d23c

SHA512
728bdd5247200bd25e860da873dcfed9ebc3bdbb7fcb596f6d200a15d9a3f7b490656d2fb74615b6618095fa0d7c34c8bf7192adb9277812a67a7ea2d3389a14

Download Submit
\Users\Admin\AppData\Local\Temp\brTOGrD.exe

Filesize
15KB

MD5
f7d21de5c4e81341eccd280c11ddcc9a

SHA1
d4e9ef10d7685d491583c6fa93ae5d9105d815bd

SHA256
4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794

SHA512
e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3

Download Submit
memory/2416-12-0x0000000001190000-0x0000000001199000-memory.dmp

Filesize
36KB

Download
memory/2416-34-0x0000000001190000-0x0000000001199000-memory.dmp

Filesize
36KB

Download
memory/2688-10-0x0000000000220000-0x0000000000229000-memory.dmp

Filesize
36KB

Download
memory/2688-16-0x00000000008C0000-0x00000000009C0000-memory.dmp

Filesize
1024KB

Download
memory/2688-17-0x0000000000220000-0x000000000023F000-memory.dmp

Filesize
124KB

Download
memory/2688-18-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/2688-9-0x0000000000400000-0x0000000000473000-memory.dmp

Filesize
460KB

Download
memory/2688-11-0x0000000000220000-0x0000000000229000-memory.dmp

Filesize
36KB

Download
memory/2688-36-0x0000000000400000-0x0000000000473000-memory.dmp

Filesize
460KB

Download
memory/2688-38-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/2688-37-0x0000000000220000-0x0000000000229000-memory.dmp

Filesize
36KB

Download