bdaejec | 208b76092a7d39987ceeb66ec607b3096a9bce88984e004c0958f15f50c1a761

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30/11/2024, 20:23

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General

Target

208b76092a7d39987ceeb66ec607b3096a9bce88984e004c0958f15f50c1a761.exe
Size

583KB
MD5

f68deaf15799a7741a0264ba8bc25675
SHA1

c2f35a53d347f577389ce6d2111456c983f5ec11
SHA256

208b76092a7d39987ceeb66ec607b3096a9bce88984e004c0958f15f50c1a761
SHA512

8b72b2969348f0bd8960f3e542ea40aeb2f588f28e4dd2c8031e9cea1e10e9224c0f1f4d40a0c805d4630b35a2bb55e01cf1649ff3e2019074fc95dc40331c3e
SSDEEP

12288:ZgCYxPVQ1KRLLIyDASbumfbKFsdrojwSzunLEjzaQ/K1V+qr:ZgCYQ1LGum4sx8Kofd/uV+w

Score

10^/10

bdaejec aspackv2 backdoor discovery upx

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/4864-5-0x0000000000C40000-0x0000000000C49000-memory.dmp	family_bdaejec_backdoor
behavioral2/memory/4864-37-0x0000000000C40000-0x0000000000C49000-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/0x0008000000023caa-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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	fvkcA.exe

Executes dropped EXE 1 IoCs

pid	Process
4864	fvkcA.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4808-0-0x0000000000400000-0x0000000000586000-memory.dmp	upx
behavioral2/memory/4808-22-0x0000000000400000-0x0000000000586000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Mozilla Firefox\uninstall\helper.exe	fvkcA.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebMediaExtensions_1.0.20875.0_x64__8wekyb3d8bbwe\Microsoft.WebMediaExtensions.exe	fvkcA.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	fvkcA.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE	fvkcA.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\VPREVIEW.EXE	fvkcA.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\OLicenseHeartbeat.exe	fvkcA.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppInstallerPythonRedirector.exe	fvkcA.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\WhatsNew.Store.exe	fvkcA.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe	fvkcA.exe
File opened for modification	C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE	fvkcA.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\protocolhandler.exe	fvkcA.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\XLICONS.EXE	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmic.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javacpl.exe	fvkcA.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\POWERPNT.EXE	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstack.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javacpl.exe	fvkcA.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.GetHelp_10.1706.13331.0_x64__8wekyb3d8bbwe\GetHelp.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\pack200.exe	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\FullTrustNotifier.exe	fvkcA.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeApp.exe	fvkcA.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCamera_2018.826.98.0_x64__8wekyb3d8bbwe\WindowsCamera.exe	fvkcA.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.19071.19011.0_x64__8wekyb3d8bbwe\Music.UI.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jdb.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jinfo.exe	fvkcA.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE	fvkcA.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jp2launcher.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ssvagent.exe	fvkcA.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoadfsb.exe	fvkcA.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_3.6.73.0_x64__8wekyb3d8bbwe\Microsoft.Notes.exe	fvkcA.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Xbox.TCUI_1.23.28002.0_x64__8wekyb3d8bbwe\TCUI-App.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javac.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\kinit.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\orbd.exe	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\reader_sl.exe	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javaw.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\servertool.exe	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Download\{8A69D345-D564-463C-AFF1-A69D9E530F96}\123.0.6312.123\chrome_installer.exe	fvkcA.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DWTRIG20.EXE	fvkcA.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\View3D.ResourceResolver.exe	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Install\{4E6AEEAD-B62E-4CF8-80E5-2A66138AEFDE}\chrome_installer.exe	fvkcA.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\MSOHTMED.EXE	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateCore.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\idlj.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jarsigner.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\native2ascii.exe	fvkcA.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.22753.0_x64__8wekyb3d8bbwe\codecpacks.webp.exe	fvkcA.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_x64__8wekyb3d8bbwe\Time.exe	fvkcA.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\policytool.exe	fvkcA.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\CLVIEW.EXE	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\java.exe	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroLayoutRecognizer\AcroLayoutRecognizer.exe	fvkcA.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.exe	fvkcA.exe
File opened for modification	C:\Program Files\Mozilla Firefox\pingsender.exe	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateBroker.exe	fvkcA.exe
File opened for modification	C:\Program Files\dotnet\dotnet.exe	fvkcA.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\createdump.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\klist.exe	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\Uninstall.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\servertool.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\wsimport.exe	fvkcA.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
4220	4808	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	fvkcA.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	208b76092a7d39987ceeb66ec607b3096a9bce88984e004c0958f15f50c1a761.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4808 wrote to memory of 4864	4808	208b76092a7d39987ceeb66ec607b3096a9bce88984e004c0958f15f50c1a761.exe	83
PID 4808 wrote to memory of 4864	4808	208b76092a7d39987ceeb66ec607b3096a9bce88984e004c0958f15f50c1a761.exe	83
PID 4808 wrote to memory of 4864	4808	208b76092a7d39987ceeb66ec607b3096a9bce88984e004c0958f15f50c1a761.exe	83
PID 4864 wrote to memory of 1996	4864	fvkcA.exe	105
PID 4864 wrote to memory of 1996	4864	fvkcA.exe	105
PID 4864 wrote to memory of 1996	4864	fvkcA.exe	105

C:\Users\Admin\AppData\Local\Temp\208b76092a7d39987ceeb66ec607b3096a9bce88984e004c0958f15f50c1a761.exe
"C:\Users\Admin\AppData\Local\Temp\208b76092a7d39987ceeb66ec607b3096a9bce88984e004c0958f15f50c1a761.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4808
- C:\Users\Admin\AppData\Local\Temp\fvkcA.exe
  C:\Users\Admin\AppData\Local\Temp\fvkcA.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:4864
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\4f64612a.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1996
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 564
  2⤵
  - Program crash
  PID:4220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4808 -ip 4808
1⤵
PID:1152

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\6IJLDY7V\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\4f64612a.bat

Filesize
185B

MD5
dc4f677b7c9e250133d17251ef8a32df

SHA1
7d70ef323dad9b7f1dbe23cef93ee2e0d90c127f

SHA256
ccb3961497b3b01dccc1f316af3f548a25b1e66a47922745ea627ce7bada57a8

SHA512
c247bde1381d737030f4c70936ff0003a8fe5cb43d1690b5906a31510b63f146bd72bfa1907c3375f0fd5c980df2304506eaea2f13eeb3f14abd3a4658910f78

Download Submit
C:\Users\Admin\AppData\Local\Temp\7D5C20E1.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/4808-0-0x0000000000400000-0x0000000000586000-memory.dmp

Filesize
1.5MB

Download
memory/4808-22-0x0000000000400000-0x0000000000586000-memory.dmp

Filesize
1.5MB

Download
memory/4864-5-0x0000000000C40000-0x0000000000C49000-memory.dmp

Filesize
36KB

Download
memory/4864-37-0x0000000000C40000-0x0000000000C49000-memory.dmp

Filesize
36KB

Download