bdaejec | bfa2f162df38f24ab650339122304b46eab27c81ef66e7d9585fcae6f82d7cb8

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-01-2025 18:49

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

bfa2f162df38f24ab650339122304b46eab27c81ef66e7d9585fcae6f82d7cb8.exe
Size

6.7MB
MD5

f03b14e62c74d3b050140ff9a7015f13
SHA1

7aa17bf3b1ae7327a63c80f77d265bbfd2a2e578
SHA256

bfa2f162df38f24ab650339122304b46eab27c81ef66e7d9585fcae6f82d7cb8
SHA512

c06bcc4f0a113d44580d71308503795d53ccdb93d86c99fde6432706f95a737dd3b0931a835cb6c5c99257d7457373f3db22cc549dc9b84876094f22ca96a600
SSDEEP

98304:5kaWsAYtVm8xoZV/Cypkj2JY7kXeYfmFao4PWjJ8MjY0:5kaWsAYbZawypka4lYbMJ8MjY0

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/4200-45-0x00000000004F0000-0x00000000004F9000-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/0x000c000000023b71-3.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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	CMckUnD.exe

Executes dropped EXE 1 IoCs

pid	Process
4200	CMckUnD.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\EXCEL.EXE	CMckUnD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\GRAPH.EXE	CMckUnD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSQRY32.EXE	CMckUnD.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeApp.exe	CMckUnD.exe
File opened for modification	C:\Program Files\7-Zip\7zFM.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\servertool.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\CLVIEW.EXE	CMckUnD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOSYNC.EXE	CMckUnD.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateOnDemand.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javaw.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\rmid.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jp2launcher.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\OLicenseHeartbeat.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\SQLDumper.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jabswitch.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jsadebugd.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE	CMckUnD.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\ADelRCP.exe	CMckUnD.exe
File opened for modification	C:\Program Files\7-Zip\7zG.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jjs.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jjs.exe	CMckUnD.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.People_10.1902.633.0_x64__8wekyb3d8bbwe\PeopleApp.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SkypeSrv\SKYPESERVER.EXE	CMckUnD.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.VP9VideoExtensions_1.0.22681.0_x64__8wekyb3d8bbwe\codecpacks.VP9.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SDXHelperBgt.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Mozilla Firefox\default-browser-agent.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Mozilla Firefox\pingsender.exe	CMckUnD.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\FullTrustNotifier.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jrunscript.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\java-rmi.exe	CMckUnD.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroBroker.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\klist.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Mozilla Firefox\minidump-analyzer.exe	CMckUnD.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\wabmig.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jps.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\xjc.exe	CMckUnD.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1907.3152.0_x64__8wekyb3d8bbwe\PilotshubApp.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\servertool.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SELFCERT.EXE	CMckUnD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE	CMckUnD.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_4.4.8204.0_x64__8wekyb3d8bbwe\Microsoft.MicrosoftSolitaireCollection.exe	CMckUnD.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Wallet_2.4.18324.0_x64__8wekyb3d8bbwe\Microsoft.Wallet.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmiregistry.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\protocolhandler.exe	CMckUnD.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\LocalBridge.exe	CMckUnD.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.StorePurchaseApp_11811.1001.18.0_x64__8wekyb3d8bbwe\StoreExperienceHost.exe	CMckUnD.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxIdentityProvider_12.50.6001.0_x64__8wekyb3d8bbwe\XboxIdp.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoasb.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoia.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\tnameserv.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\pack200.exe	CMckUnD.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\Cortana.exe	CMckUnD.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppInstallerElevatedAppServiceClient.exe	CMckUnD.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleCrashHandler.exe	CMckUnD.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\createdump.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\kinit.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ssvagent.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\unpack200.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\misc.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\officeappguardwin32.exe	CMckUnD.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\Win32Bridge.Server.exe	CMckUnD.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe	CMckUnD.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	bfa2f162df38f24ab650339122304b46eab27c81ef66e7d9585fcae6f82d7cb8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CMckUnD.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5024 wrote to memory of 4200	5024	bfa2f162df38f24ab650339122304b46eab27c81ef66e7d9585fcae6f82d7cb8.exe	83
PID 5024 wrote to memory of 4200	5024	bfa2f162df38f24ab650339122304b46eab27c81ef66e7d9585fcae6f82d7cb8.exe	83
PID 5024 wrote to memory of 4200	5024	bfa2f162df38f24ab650339122304b46eab27c81ef66e7d9585fcae6f82d7cb8.exe	83
PID 4200 wrote to memory of 1528	4200	CMckUnD.exe	84
PID 4200 wrote to memory of 1528	4200	CMckUnD.exe	84
PID 4200 wrote to memory of 1528	4200	CMckUnD.exe	84

C:\Users\Admin\AppData\Local\Temp\bfa2f162df38f24ab650339122304b46eab27c81ef66e7d9585fcae6f82d7cb8.exe
"C:\Users\Admin\AppData\Local\Temp\bfa2f162df38f24ab650339122304b46eab27c81ef66e7d9585fcae6f82d7cb8.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5024
- C:\Users\Admin\AppData\Local\Temp\CMckUnD.exe
  C:\Users\Admin\AppData\Local\Temp\CMckUnD.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:4200
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\601b3c37.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1528

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\8R55UT9S\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\601b3c37.bat

Filesize
189B

MD5
fda2f3f00071f26f1d93173814ff3bd0

SHA1
29651d058bf633e283283e09c3d582b2bbdde059

SHA256
5b69c1e82ce8c16fbdc398de6d8029a01fece8af7937cfa802c5ce921c181955

SHA512
0de411a47e81368af8068c70f3c156edfd4363182976ec450f62fcf3ec763a742299abdeb7daeee1e230b26170c6b533e233146869c377fa85bb448a208e8584

Download Submit
C:\Users\Admin\AppData\Local\Temp\7E5C2E83.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/4200-5-0x00000000004F0000-0x00000000004F9000-memory.dmp

Filesize
36KB

Download
memory/4200-45-0x00000000004F0000-0x00000000004F9000-memory.dmp

Filesize
36KB

Download
memory/5024-0-0x0000000000400000-0x000000000102D000-memory.dmp

Filesize
12.2MB

Download
memory/5024-47-0x0000000000400000-0x000000000102D000-memory.dmp

Filesize
12.2MB

Download
memory/5024-49-0x0000000000400000-0x000000000102D000-memory.dmp

Filesize
12.2MB

Download