bdaejec | 9b1cb48ed91b98d32b6a9ca70013154967f312b848a3bb28888345c2f1e25b69

Analysis

max time kernel
130s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
28-12-2024 18:05

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General

Target

9b1cb48ed91b98d32b6a9ca70013154967f312b848a3bb28888345c2f1e25b69.exe
Size

12.0MB
MD5

d164266b0d36285a526cb2686a053d05
SHA1

a538acac544379ac205e3ebb6b67dd85c0a08667
SHA256

9b1cb48ed91b98d32b6a9ca70013154967f312b848a3bb28888345c2f1e25b69
SHA512

7ef006eb29c2741aa1be702404f41f9b09bbc797607a4a419a3f1fdda84b35d279d5dd29a7d805bc45f44c3b32223ab6614e499dd3c92a0b3f502498a47bf188
SSDEEP

49152:s/KE1ld3/wAyJxVZp2bnbJ5eA+zsFTCTMqQ:s/KU9/pyJx9Y5elA0T

Score

10^/10

bdaejec aspackv2 backdoor discovery

Malware Config

Extracted

Family

bdaejec

ddos.dnsnb8.net

Signatures

Bdaejec
Bdaejec is a backdoor written in C++.
backdoor bdaejec
Bdaejec family
bdaejec

Detects Bdaejec Backdoor. 2 IoCs

Bdaejec is backdoor written in C++.

resource	yara_rule
behavioral2/memory/4844-6-0x00000000000F0000-0x00000000000F9000-memory.dmp	family_bdaejec_backdoor
behavioral2/memory/4844-10-0x00000000000F0000-0x00000000000F9000-memory.dmp	family_bdaejec_backdoor

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral2/files/0x000c000000023b33-2.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	hstemk.exe

Executes dropped EXE 1 IoCs

pid	Process
4844	hstemk.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome.exe	hstemk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jhat.exe	hstemk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jjs.exe	hstemk.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javacpl.exe	hstemk.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrServicesUpdater.exe	hstemk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jdb.exe	hstemk.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ktab.exe	hstemk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SETLANG.EXE	hstemk.exe
File opened for modification	C:\Program Files\Windows Mail\wabmig.exe	hstemk.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.VP9VideoExtensions_1.0.22681.0_x64__8wekyb3d8bbwe\codecpacks.VP9.exe	hstemk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javacpl.exe	hstemk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection64.exe	hstemk.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ScreenSketch_10.1907.2471.0_x64__8wekyb3d8bbwe\ScreenSketch.exe	hstemk.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxIdentityProvider_12.50.6001.0_x64__8wekyb3d8bbwe\XboxIdp.exe	hstemk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Smart Tag\SmartTagInstall.exe	hstemk.exe
File opened for modification	C:\Program Files\dotnet\dotnet.exe	hstemk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jps.exe	hstemk.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	hstemk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOXMLED.EXE	hstemk.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\onenoteim.exe	hstemk.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroTextExtractor.exe	hstemk.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\arh.exe	hstemk.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Installer\setup.exe	hstemk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe	hstemk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\java.exe	hstemk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\officeappguardwin32.exe	hstemk.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxTsr.exe	hstemk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\wsimport.exe	hstemk.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jp2launcher.exe	hstemk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\NAMECONTROLSERVER.EXE	hstemk.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\onenoteshare.exe	hstemk.exe
File opened for modification	C:\Program Files\Windows Mail\wab.exe	hstemk.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\Cortana.exe	hstemk.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_10.1906.1972.0_x64__8wekyb3d8bbwe\SoundRec.exe	hstemk.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\reader_sl.exe	hstemk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\xjc.exe	hstemk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate32.exe	hstemk.exe
File opened for modification	C:\Program Files\Microsoft Office 15\ClientX64\IntegratedOffice.exe	hstemk.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\uninstall.exe	hstemk.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Install\{1E8F5DDF-3FB3-4332-A4CC-B46FF6E6899A}\chrome_installer.exe	hstemk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jinfo.exe	hstemk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstatd.exe	hstemk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.ShowHelp.exe	hstemk.exe
File opened for modification	C:\Program Files\Mozilla Firefox\plugin-container.exe	hstemk.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.123\notification_helper.exe	hstemk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE	hstemk.exe
File opened for modification	C:\Program Files\Windows Security\BrowserCore\BrowserCore.exe	hstemk.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdate.exe	hstemk.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_2.34.28001.0_x64__8wekyb3d8bbwe\GameBar.exe	hstemk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jarsigner.exe	hstemk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javaw.exe	hstemk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\rmiregistry.exe	hstemk.exe
File opened for modification	C:\Program Files\Mozilla Firefox\pingsender.exe	hstemk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\FLTLDR.EXE	hstemk.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_4.4.8204.0_x64__8wekyb3d8bbwe\Solitaire.exe	hstemk.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeBridge\SkypeBridge.exe	hstemk.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32Info.exe	hstemk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmiregistry.exe	hstemk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOICONS.EXE	hstemk.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxGameOverlay_1.46.11001.0_x64__8wekyb3d8bbwe\GameBar.exe	hstemk.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Browser\WCChromeExtn\WCChromeNativeMessagingHost.exe	hstemk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\policytool.exe	hstemk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DWTRIG20.EXE	hstemk.exe
File opened for modification	C:\Program Files\Mozilla Firefox\private_browsing.exe	hstemk.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	9b1cb48ed91b98d32b6a9ca70013154967f312b848a3bb28888345c2f1e25b69.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hstemk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4480	9b1cb48ed91b98d32b6a9ca70013154967f312b848a3bb28888345c2f1e25b69.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4480	9b1cb48ed91b98d32b6a9ca70013154967f312b848a3bb28888345c2f1e25b69.exe
4480	9b1cb48ed91b98d32b6a9ca70013154967f312b848a3bb28888345c2f1e25b69.exe
4480	9b1cb48ed91b98d32b6a9ca70013154967f312b848a3bb28888345c2f1e25b69.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4480 wrote to memory of 4844	4480	9b1cb48ed91b98d32b6a9ca70013154967f312b848a3bb28888345c2f1e25b69.exe	82
PID 4480 wrote to memory of 4844	4480	9b1cb48ed91b98d32b6a9ca70013154967f312b848a3bb28888345c2f1e25b69.exe	82
PID 4480 wrote to memory of 4844	4480	9b1cb48ed91b98d32b6a9ca70013154967f312b848a3bb28888345c2f1e25b69.exe	82
PID 4844 wrote to memory of 4880	4844	hstemk.exe	93
PID 4844 wrote to memory of 4880	4844	hstemk.exe	93
PID 4844 wrote to memory of 4880	4844	hstemk.exe	93

C:\Users\Admin\AppData\Local\Temp\9b1cb48ed91b98d32b6a9ca70013154967f312b848a3bb28888345c2f1e25b69.exe
"C:\Users\Admin\AppData\Local\Temp\9b1cb48ed91b98d32b6a9ca70013154967f312b848a3bb28888345c2f1e25b69.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4480
- C:\Users\Admin\AppData\Local\Temp\hstemk.exe
  C:\Users\Admin\AppData\Local\Temp\hstemk.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:4844
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\7cbe7308.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4880

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\Temp\7cbe7308.bat

Filesize
187B

MD5
c1b7b7145710cf2cdb49d5bbafb1d142

SHA1
777b8e9097e1b517fcfddfe85984a177a0bfba02

SHA256
f98f5d6fa3ba9b1e5e04f7c5165151a96eae03958583e5b805e783f117133887

SHA512
f6ef0f851045cd8f9e79cc0db9bf4b8c10ed878746f40498a9227307778972304fa24dad4b8b59960533b9add78690d68a963cf497eeaebc472f07570deb14e2

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/4480-5-0x0000000000070000-0x0000000000CD1000-memory.dmp

Filesize
12.4MB

Download
memory/4480-8-0x0000000003550000-0x0000000003650000-memory.dmp

Filesize
1024KB

Download
memory/4480-9-0x0000000000070000-0x0000000000CD1000-memory.dmp

Filesize
12.4MB

Download
memory/4480-11-0x0000000003550000-0x0000000003650000-memory.dmp

Filesize
1024KB

Download
memory/4844-6-0x00000000000F0000-0x00000000000F9000-memory.dmp

Filesize
36KB

Download
memory/4844-10-0x00000000000F0000-0x00000000000F9000-memory.dmp

Filesize
36KB

Download