bdaejec | 8fe8638fc0de6cc719a93d19c35becb82f06f1c1d00f09e3e9afb62f72b5a7a5

Analysis

max time kernel
95s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2024 05:14

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General

Target

8fe8638fc0de6cc719a93d19c35becb82f06f1c1d00f09e3e9afb62f72b5a7a5.exe
Size

104KB
MD5

0f3ea0f5dd4f63c920b1985ece3f7b4f
SHA1

a2b827719e963078f0bfe3648b83ea148851d96d
SHA256

8fe8638fc0de6cc719a93d19c35becb82f06f1c1d00f09e3e9afb62f72b5a7a5
SHA512

3fade54ae287a8e28ca44fcceb0372819668574df394a84a851801edae8f4ea080d4b47bb55bce33721528087d3dcc233256fa9cbb13edaf1b15bb88e3b0d520
SSDEEP

1536:DFEL0c3++wG5NlKOln9N7oKsMmuB2IMokC+0FfHYToSMygGCq2iW7zq:DFUxlnjmDXokC+GfHYToSMTGCHm

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. 1 IoCs

Bdaejec is backdoor written in C++.

resource	yara_rule
behavioral2/memory/4056-46-0x0000000000970000-0x0000000000979000-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/0x000d000000023b80-4.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	MfmirF.exe

Executes dropped EXE 1 IoCs

pid	Process
4056	MfmirF.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\kinit.exe	MfmirF.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\tnameserv.exe	MfmirF.exe
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe	MfmirF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SDXHelper.exe	MfmirF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\WORDICON.EXE	MfmirF.exe
File opened for modification	C:\Program Files\Mozilla Firefox\default-browser-agent.exe	MfmirF.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeApp.exe	MfmirF.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\reader_sl.exe	MfmirF.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\wow_helper.exe	MfmirF.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateCore.exe	MfmirF.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\keytool.exe	MfmirF.exe
File opened for modification	C:\Program Files\Windows Security\BrowserCore\BrowserCore.exe	MfmirF.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\LogTransport2.exe	MfmirF.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\kinit.exe	MfmirF.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\servertool.exe	MfmirF.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdate.exe	MfmirF.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_4.4.8204.0_x64__8wekyb3d8bbwe\Solitaire.exe	MfmirF.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32Info.exe	MfmirF.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\wsimport.exe	MfmirF.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\xjc.exe	MfmirF.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\tnameserv.exe	MfmirF.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\pack200.exe	MfmirF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ONENOTEM.EXE	MfmirF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SDXHelperBgt.exe	MfmirF.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.GetHelp_10.1706.13331.0_x64__8wekyb3d8bbwe\GetHelp.exe	MfmirF.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\java.exe	MfmirF.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\klist.exe	MfmirF.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javaw.exe	MfmirF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\DATABASECOMPARE.EXE	MfmirF.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	MfmirF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOUC.EXE	MfmirF.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\fmui\fmui.exe	MfmirF.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.HEIFImageExtension_1.0.22742.0_x64__8wekyb3d8bbwe\codecpacks.heif.exe	MfmirF.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxSpeechToTextOverlay_1.17.29001.0_x64__8wekyb3d8bbwe\SpeechToTextOverlay64-Retail.exe	MfmirF.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroTextExtractor.exe	MfmirF.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Download\{8A69D345-D564-463C-AFF1-A69D9E530F96}\123.0.6312.123\chrome_installer.exe	MfmirF.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\java.exe	MfmirF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\Wordconv.exe	MfmirF.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsStore_11910.1002.5.0_x64__8wekyb3d8bbwe\WinStore.App.exe	MfmirF.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateBroker.exe	MfmirF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoev.exe	MfmirF.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1906.55.0_x64__8wekyb3d8bbwe\Calculator.exe	MfmirF.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.123\chrome_pwa_launcher.exe	MfmirF.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe	MfmirF.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jabswitch.exe	MfmirF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msotd.exe	MfmirF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\POWERPNT.EXE	MfmirF.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\rmiregistry.exe	MfmirF.exe
File opened for modification	C:\Program Files\Windows Mail\wab.exe	MfmirF.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MixedReality.Portal_2000.19081.1301.0_x64__8wekyb3d8bbwe\MixedRealityPortal.exe	MfmirF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection64.exe	MfmirF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\filecompare.exe	MfmirF.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\pack200.exe	MfmirF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\GRAPH.EXE	MfmirF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE	MfmirF.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppInstaller.exe	MfmirF.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\extcheck.exe	MfmirF.exe
File opened for modification	C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE	MfmirF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\NAMECONTROLSERVER.EXE	MfmirF.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\Cortana.exe	MfmirF.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\unpack200.exe	MfmirF.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\rmiregistry.exe	MfmirF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.ShowHelp.exe	MfmirF.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Wallet_2.4.18324.0_x64__8wekyb3d8bbwe\Microsoft.Wallet.exe	MfmirF.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	8fe8638fc0de6cc719a93d19c35becb82f06f1c1d00f09e3e9afb62f72b5a7a5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MfmirF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4472 wrote to memory of 4056	4472	8fe8638fc0de6cc719a93d19c35becb82f06f1c1d00f09e3e9afb62f72b5a7a5.exe	82
PID 4472 wrote to memory of 4056	4472	8fe8638fc0de6cc719a93d19c35becb82f06f1c1d00f09e3e9afb62f72b5a7a5.exe	82
PID 4472 wrote to memory of 4056	4472	8fe8638fc0de6cc719a93d19c35becb82f06f1c1d00f09e3e9afb62f72b5a7a5.exe	82
PID 4056 wrote to memory of 1468	4056	MfmirF.exe	83
PID 4056 wrote to memory of 1468	4056	MfmirF.exe	83
PID 4056 wrote to memory of 1468	4056	MfmirF.exe	83

C:\Users\Admin\AppData\Local\Temp\8fe8638fc0de6cc719a93d19c35becb82f06f1c1d00f09e3e9afb62f72b5a7a5.exe
"C:\Users\Admin\AppData\Local\Temp\8fe8638fc0de6cc719a93d19c35becb82f06f1c1d00f09e3e9afb62f72b5a7a5.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4472
- C:\Users\Admin\AppData\Local\Temp\MfmirF.exe
  C:\Users\Admin\AppData\Local\Temp\MfmirF.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:4056
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\66aa1b76.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1468

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\0BHOTC3C\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\3ECF416B.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

Download Submit
C:\Users\Admin\AppData\Local\Temp\66aa1b76.bat

Filesize
187B

MD5
8a15bc4b7cdd526309bdb954eec24892

SHA1
32a4ab5c7bfcea28833b7fa7da4b418fb2a4e049

SHA256
39ea18dd1439e85565f83dc7e15213494c378ea4d540b1b6909642eb76422c12

SHA512
26b6f7e945c59fa1a14bf3173fb57557c332067ac6743b627bf397709d0e50001cbc7b316de1be5ae373a16deaaf579cdd9eb1d18f6b0f320d0d2aede548568c

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/4056-5-0x0000000000970000-0x0000000000979000-memory.dmp

Filesize
36KB

Download
memory/4056-46-0x0000000000970000-0x0000000000979000-memory.dmp

Filesize
36KB

Download
memory/4472-0-0x00000000005B0000-0x00000000005D0000-memory.dmp

Filesize
128KB

Download
memory/4472-48-0x00000000005B0000-0x00000000005D0000-memory.dmp

Filesize
128KB

Download