bdaejec | 8c3d4042b617a6a11b49463fa7c51bb06cb6887bb636e71c9b4ddef373264879

Analysis

max time kernel
111s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20250207-en
resource tags

arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system
submitted
16-02-2025 07:00

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General

Target

8c3d4042b617a6a11b49463fa7c51bb06cb6887bb636e71c9b4ddef373264879.exe
Size

419KB
MD5

a0c1223756a9a01fe6de92800d465b76
SHA1

3bcb40ac72b6fb3bfba3f121a18dcfc96858b179
SHA256

8c3d4042b617a6a11b49463fa7c51bb06cb6887bb636e71c9b4ddef373264879
SHA512

1f51b237489791ace32e0129ba7958bbe676c7e325e6e26a68d1271fd4175daee6ac86a10683732579c82cc236bfa6cee11bcd020c591e584aea195d26df9014
SSDEEP

12288:+VugDZ9r9oEExcbQQCIDeufHiAlbcUvAkyfAE4qJj1MXI:+lr+EExccQCIDeG5iZAE4Ar

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. 1 IoCs

Bdaejec is backdoor written in C++.

resource	yara_rule
behavioral2/memory/1900-17-0x00000000009B0000-0x00000000009B9000-memory.dmp	family_bdaejec_backdoor

Downloads MZ/PE file 1 IoCs

flow	pid	Process
65	3040	Process not Found

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral2/files/0x000a000000023d99-4.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-1-5-21-189444705-1272902858-1305688695-1000\Control Panel\International\Geo\Nation	ojcC.exe

Executes dropped EXE 1 IoCs

pid	Process
1900	ojcC.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3936-0-0x0000000000400000-0x000000000052A000-memory.dmp	upx
behavioral2/memory/3936-15-0x0000000000400000-0x000000000052A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Wallet_2.4.18324.0_x64__8wekyb3d8bbwe\Microsoft.Wallet.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\java.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jrunscript.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\rmid.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\java-rmi.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\servertool.exe	ojcC.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOXMLED.EXE	ojcC.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.GetHelp_10.1706.13331.0_x64__8wekyb3d8bbwe\GetHelp.exe	ojcC.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32Info.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\java.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jcmd.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\keytool.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\policytool.exe	ojcC.exe
File opened for modification	C:\Program Files\Mozilla Firefox\crashreporter.exe	ojcC.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\Cortana.exe	ojcC.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.VP9VideoExtensions_1.0.22681.0_x64__8wekyb3d8bbwe\codecpacks.VP9.exe	ojcC.exe
File opened for modification	C:\Program Files\7-Zip\7zG.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javac.exe	ojcC.exe
File opened for modification	C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE	ojcC.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\LogTransport2.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\extcheck.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jhat.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmic.exe	ojcC.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection64.exe	ojcC.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Install\{6FDB5D73-D43A-4374-B99E-84A6FE01F856}\chrome_installer.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\policytool.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javaw.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\java.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\klist.exe	ojcC.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\VPREVIEW.EXE	ojcC.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.22753.0_x64__8wekyb3d8bbwe\codecpacks.webp.exe	ojcC.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxAccounts.exe	ojcC.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_2.34.28001.0_x64__8wekyb3d8bbwe\GameBar.exe	ojcC.exe
File opened for modification	C:\Program Files\dotnet\dotnet.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javadoc.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmid.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javaws.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\tnameserv.exe	ojcC.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SELFCERT.EXE	ojcC.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SETLANG.EXE	ojcC.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jjs.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ssvagent.exe	ojcC.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\DATABASECOMPARE.EXE	ojcC.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\createdump.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstatd.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\kinit.exe	ojcC.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\officeappguardwin32.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\pack200.exe	ojcC.exe
File opened for modification	C:\Program Files\Mozilla Firefox\uninstall\helper.exe	ojcC.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\arh.exe	ojcC.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\64BitMAPIBroker.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jmap.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\pack200.exe	ojcC.exe
File opened for modification	C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe	ojcC.exe
File opened for modification	C:\Program Files\Windows Mail\wab.exe	ojcC.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javaws.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jp2launcher.exe	ojcC.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\misc.exe	ojcC.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoia.exe	ojcC.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\EQUATION\eqnedt32.exe	ojcC.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection.exe	ojcC.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroBroker.exe	ojcC.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\servertool.exe	ojcC.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 4 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	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8c3d4042b617a6a11b49463fa7c51bb06cb6887bb636e71c9b4ddef373264879.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ojcC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
3520	MicrosoftEdgeUpdate.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	8c3d4042b617a6a11b49463fa7c51bb06cb6887bb636e71c9b4ddef373264879.exe
Key created	\REGISTRY\USER\S-1-5-21-189444705-1272902858-1305688695-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	8c3d4042b617a6a11b49463fa7c51bb06cb6887bb636e71c9b4ddef373264879.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3936 wrote to memory of 1900	3936	8c3d4042b617a6a11b49463fa7c51bb06cb6887bb636e71c9b4ddef373264879.exe	87
PID 3936 wrote to memory of 1900	3936	8c3d4042b617a6a11b49463fa7c51bb06cb6887bb636e71c9b4ddef373264879.exe	87
PID 3936 wrote to memory of 1900	3936	8c3d4042b617a6a11b49463fa7c51bb06cb6887bb636e71c9b4ddef373264879.exe	87
PID 1900 wrote to memory of 216	1900	ojcC.exe	96
PID 1900 wrote to memory of 216	1900	ojcC.exe	96
PID 1900 wrote to memory of 216	1900	ojcC.exe	96

C:\Users\Admin\AppData\Local\Temp\8c3d4042b617a6a11b49463fa7c51bb06cb6887bb636e71c9b4ddef373264879.exe
"C:\Users\Admin\AppData\Local\Temp\8c3d4042b617a6a11b49463fa7c51bb06cb6887bb636e71c9b4ddef373264879.exe"
1⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3936
- C:\Users\Admin\AppData\Local\Temp\ojcC.exe
  C:\Users\Admin\AppData\Local\Temp\ojcC.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:1900
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\1c662be7.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:216

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz48cmVxdWVzdCBwcm90b2NvbD0iMy4wIiB1cGRhdGVyPSJPbWFoYSIgdXBkYXRlcnZlcnNpb249IjEuMy4xOTUuNDMiIHNoZWxsX3ZlcnNpb249IjEuMy4xOTUuNDMiIGlzbWFjaGluZT0iMSIgc2Vzc2lvbmlkPSJ7OTNCRTAzNDYtMDlCOC00MDU2LUI4RjYtMTBGNjcwRkEwQjg1fSIgdXNlcmlkPSJ7REVDNjcxMzktRTcwNi00OUU0LUE2NDEtOTMyODRGNjlGN0EwfSIgaW5zdGFsbHNvdXJjZT0ibGltaXRlZCIgcmVxdWVzdGlkPSJ7MDUzNkJDNTEtOUFDQi00QjVGLUE2ODQtNDczNjdDMDFFMDVFfSIgZGVkdXA9ImNyIiBkb21haW5qb2luZWQ9IjAiPjxodyBsb2dpY2FsX2NwdXM9IjIiIHBoeXNtZW1vcnk9IjQiIGRpc2tfdHlwZT0iMiIgc3NlPSIxIiBzc2UyPSIxIiBzc2UzPSIxIiBzc3NlMz0iMSIgc3NlNDE9IjEiIHNzZTQyPSIxIiBhdng9IjEiLz48b3MgcGxhdGZvcm09IndpbiIgdmVyc2lvbj0iMTAuMC4xOTA0MS4xMjg4IiBzcD0iIiBhcmNoPSJ4NjQiIHByb2R1Y3RfdHlwZT0iNDgiIGlzX3dpcD0iMCIgaXNfaW5fbG9ja2Rvd25fbW9kZT0iMCIvPjxvZW0gcHJvZHVjdF9tYW51ZmFjdHVyZXI9IiIgcHJvZHVjdF9uYW1lPSIiLz48ZXhwIGV0YWc9IiZxdW90O0UreGJBejZZNnNVMTI4OWJTNnFsNFZSTGJramZCVUdUTUpzanJIcjQ0aUk9JnF1b3Q7Ii8-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI4IiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5MjEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODE5ODA3NzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MzI4OTM5OTA2Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:3520

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

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\1c662be7.bat

Filesize
183B

MD5
343af3e7b1399b34a3fb72a8b37bc1e3

SHA1
25759d67c5926c312dce4236f72f50d77df0d3fb

SHA256
5c5f59571f707809b7b041b4c70dbac6ff7ab37082f317423fb7c64be0e1ca6c

SHA512
e2808ca01885e3b8f1020142eab45a527824b510c6d0cdabfee055e534c119a56784a4676e97d510727ab3d68bc1407b15d0c0b43edbf2168f9eb61f6e407d87

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/1900-5-0x00000000009B0000-0x00000000009B9000-memory.dmp

Filesize
36KB

Download
memory/1900-17-0x00000000009B0000-0x00000000009B9000-memory.dmp

Filesize
36KB

Download
memory/3936-0-0x0000000000400000-0x000000000052A000-memory.dmp

Filesize
1.2MB

Download
memory/3936-7-0x0000000000B50000-0x0000000000B51000-memory.dmp

Filesize
4KB

Download
memory/3936-15-0x0000000000400000-0x000000000052A000-memory.dmp

Filesize
1.2MB

Download
memory/3936-18-0x0000000000B50000-0x0000000000B51000-memory.dmp

Filesize
4KB

Download