bdaejec | 973a408c30ae29f27061effbfdb0c32b64f00929df0d17ae87682b18f713319c

General

Target

2024-10-21_c818478c68b8685c2285e500d20fbe0f_bkransomware_wapomi.exe
Size

168KB
MD5

c818478c68b8685c2285e500d20fbe0f
SHA1

8b49da4b33ae5369f4171b97a4e0e8aef55df09b
SHA256

973a408c30ae29f27061effbfdb0c32b64f00929df0d17ae87682b18f713319c
SHA512

54715932d7943c17572b05dd990e31095a1ffde6bfc5cae249eff31a088bdc76183b2e4b9f26f5e28c62b84de95b289d2ff35617df52a3031d3db2c81230dfb7
SSDEEP

1536:W6fZO3jpPdcwLF5zrfQ2erSaMrb4W5QTq9gQf+PcQdqbmsWjcdrnYNY1lme4OtB2:WIe7RUwFrbsa+74bJzYNY1kGB+PNGCH

Score

10^/10

bdaejec aspackv2 backdoor discovery

Malware Config

Extracted

Family

bdaejec

C2

ddos.dnsnb8.net

Signatures

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

Detects Bdaejec Backdoor. 1 IoCs

Bdaejec is backdoor written in C++.

Processes:

resource	yara_rule
behavioral2/memory/3412-47-0x00000000004E0000-0x00000000004E9000-memory.dmp	family_bdaejec_backdoor

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\HCehyU.exe	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

Processes:

HCehyU.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation HCehyU.exe
Executes dropped EXE 1 IoCs

Processes:

HCehyU.exe

pid process

3412 HCehyU.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	HCehyU.exe

pid	process
3412	HCehyU.exe

Drops file in Program Files directory 64 IoCs

Processes:

HCehyU.exe

description	ioc	process
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE	HCehyU.exe
File opened for modification	C:\Program Files\Mozilla Firefox\private_browsing.exe	HCehyU.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\PaintStudio.View.exe	HCehyU.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateBroker.exe	HCehyU.exe
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\Uninstall.exe	HCehyU.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome.exe	HCehyU.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ORGCHART.EXE	HCehyU.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxCalendarAppImm.exe	HCehyU.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javac.exe	HCehyU.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection.exe	HCehyU.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Integration\Integrator.exe	HCehyU.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\Wordconv.exe	HCehyU.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.People_10.1902.633.0_x64__8wekyb3d8bbwe\PeopleApp.exe	HCehyU.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\java.exe	HCehyU.exe
File opened for modification	C:\Program Files\Mozilla Firefox\plugin-container.exe	HCehyU.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppInstaller.exe	HCehyU.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\kinit.exe	HCehyU.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	HCehyU.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe	HCehyU.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\IEContentService.exe	HCehyU.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javapackager.exe	HCehyU.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstatd.exe	HCehyU.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\unpack200.exe	HCehyU.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\wsimport.exe	HCehyU.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javaws.exe	HCehyU.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ssvagent.exe	HCehyU.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javacpl.exe	HCehyU.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc-cache-gen.exe	HCehyU.exe
File opened for modification	C:\Program Files\Windows Mail\wabmig.exe	HCehyU.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\LogTransport2.exe	HCehyU.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\EXCEL.EXE	HCehyU.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ScreenSketch_10.1907.2471.0_x64__8wekyb3d8bbwe\ScreenSketch.exe	HCehyU.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\orbd.exe	HCehyU.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOXMLED.EXE	HCehyU.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppInstallerPythonRedirector.exe	HCehyU.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.GetHelp_10.1706.13331.0_x64__8wekyb3d8bbwe\GetHelp.exe	HCehyU.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.HEIFImageExtension_1.0.22742.0_x64__8wekyb3d8bbwe\codecpacks.heif.exe	HCehyU.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1906.55.0_x64__8wekyb3d8bbwe\Calculator.exe	HCehyU.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jinfo.exe	HCehyU.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jabswitch.exe	HCehyU.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PPTICO.EXE	HCehyU.exe
File opened for modification	C:\Program Files\Microsoft Office 15\ClientX64\OfficeClickToRun.exe	HCehyU.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\64BitMAPIBroker.exe	HCehyU.exe
File opened for modification	C:\Program Files\7-Zip\7zFM.exe	HCehyU.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	HCehyU.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\wow_helper.exe	HCehyU.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdate.exe	HCehyU.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jjs.exe	HCehyU.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\protocolhandler.exe	HCehyU.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX64\Microsoft Analysis Services\AS OLEDB\140\SQLDumper.exe	HCehyU.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVLP.exe	HCehyU.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\GRAPH.EXE	HCehyU.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Smart Tag\SmartTagInstall.exe	HCehyU.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppInstallerElevatedAppServiceClient.exe	HCehyU.exe
File opened for modification	C:\Program Files\7-Zip\7zG.exe	HCehyU.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\extcheck.exe	HCehyU.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\java-rmi.exe	HCehyU.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jdb.exe	HCehyU.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\tnameserv.exe	HCehyU.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoev.exe	HCehyU.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateComRegisterShell64.exe	HCehyU.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_3.6.73.0_x64__8wekyb3d8bbwe\Microsoft.Notes.exe	HCehyU.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleCrashHandler.exe	HCehyU.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateCore.exe	HCehyU.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

Processes:

2024-10-21_c818478c68b8685c2285e500d20fbe0f_bkransomware_wapomi.exeHCehyU.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-21_c818478c68b8685c2285e500d20fbe0f_bkransomware_wapomi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HCehyU.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

2024-10-21_c818478c68b8685c2285e500d20fbe0f_bkransomware_wapomi.exeHCehyU.exe

description	pid	process	target process
PID 1416 wrote to memory of 3412	1416	2024-10-21_c818478c68b8685c2285e500d20fbe0f_bkransomware_wapomi.exe	HCehyU.exe
PID 1416 wrote to memory of 3412	1416	2024-10-21_c818478c68b8685c2285e500d20fbe0f_bkransomware_wapomi.exe	HCehyU.exe
PID 1416 wrote to memory of 3412	1416	2024-10-21_c818478c68b8685c2285e500d20fbe0f_bkransomware_wapomi.exe	HCehyU.exe
PID 3412 wrote to memory of 2440	3412	HCehyU.exe	cmd.exe
PID 3412 wrote to memory of 2440	3412	HCehyU.exe	cmd.exe
PID 3412 wrote to memory of 2440	3412	HCehyU.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-21_c818478c68b8685c2285e500d20fbe0f_bkransomware_wapomi.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-21_c818478c68b8685c2285e500d20fbe0f_bkransomware_wapomi.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1416
- C:\Users\Admin\AppData\Local\Temp\HCehyU.exe
  C:\Users\Admin\AppData\Local\Temp\HCehyU.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:3412
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\1c84660d.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2440

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

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\1c84660d.bat

Filesize
187B

MD5
50d6617d4ba88e9d860b6b918e523f3d

SHA1
0d23145a268204faa7272090405a80fb16a889a3

SHA256
511d6277039138de2523e236f2a3732de58490ccb3a4f4ce2817f96545a2a076

SHA512
1afa30d8268ddc77caee1fba29e8623653ad748134993afba0fed9f2e0e88afd95c146475d6f29b400202dfade5d4603886c6fa33b3f1b06c000de8d82b3484f

Download Submit
C:\Users\Admin\AppData\Local\Temp\7E2004C8.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/1416-0-0x0000000000660000-0x0000000000691000-memory.dmp

Filesize
196KB

Download
memory/1416-49-0x0000000000660000-0x0000000000691000-memory.dmp

Filesize
196KB

Download
memory/3412-4-0x00000000004E0000-0x00000000004E9000-memory.dmp

Filesize
36KB

Download
memory/3412-47-0x00000000004E0000-0x00000000004E9000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads