bdaejec | 27bd27be65060ccc7e3723e082fdf628f2cfb6535cb31d995df672dd362f3674

Analysis

max time kernel
111s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20250211-en
resource tags

arch:x64arch:x86image:win10v2004-20250211-enlocale:en-usos:windows10-2004-x64system
submitted
12-02-2025 20:15

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General

Target

27bd27be65060ccc7e3723e082fdf628f2cfb6535cb31d995df672dd362f3674.exe
Size

134KB
MD5

f59a71cc895dc3f7e0194dcad482e61a
SHA1

b7408de2e30bc3c304b23c6990661956f050e9e1
SHA256

27bd27be65060ccc7e3723e082fdf628f2cfb6535cb31d995df672dd362f3674
SHA512

a33137ba3db208bf4aaa983fbcc21d46c37c32b2f503663f0848e7b7248f440de5ebb4a8ba77fb146d394ba656322251bbe6dcfc0ad6e5ab6c65c25bf3595897
SSDEEP

768:RuWGWvyDNo1sFBWfzdzemPV1KoukMt9Sbh9SbGDhwIMQGPL4vzZq2o9W7GsxBbPr:RufTDDWLdzBN1KlCDwIPGCq2iW7z

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/4708-8-0x0000000000060000-0x0000000000069000-memory.dmp	family_bdaejec_backdoor

Downloads MZ/PE file 1 IoCs

flow	pid	Process
42	4928	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/0x000c000000023c68-3.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-1-5-21-3296967594-3563063956-581523229-1000\Control Panel\International\Geo\Nation	VRzw.exe

Executes dropped EXE 1 IoCs

pid	Process
4708	VRzw.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeBridge\SkypeBridge.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jps.exe	VRzw.exe
File opened for modification	C:\Program Files\Mozilla Firefox\private_browsing.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\servertool.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\rmid.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ssvagent.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jp2launcher.exe	VRzw.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Source Engine\OSE.EXE	VRzw.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MixedReality.Portal_2000.19081.1301.0_x64__8wekyb3d8bbwe\MixedRealityPortal.Brokered.exe	VRzw.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_x64__8wekyb3d8bbwe\Time.exe	VRzw.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxAccounts.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\kinit.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\xjc.exe	VRzw.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\CLVIEW.EXE	VRzw.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOSYNC.EXE	VRzw.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateOnDemand.exe	VRzw.exe
File opened for modification	C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe	VRzw.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Installer\setup.exe	VRzw.exe
File opened for modification	C:\Program Files\Mozilla Firefox\uninstall\helper.exe	VRzw.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\Microsoft.Photos.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\kinit.exe	VRzw.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\PaintStudio.View.exe	VRzw.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javafxpackager.exe	VRzw.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome.exe	VRzw.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOHTMED.EXE	VRzw.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_2.34.28001.0_x64__8wekyb3d8bbwe\GameBar.exe	VRzw.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroLayoutRecognizer\AcroLayoutRecognizer.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstatd.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jsadebugd.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\ktab.exe	VRzw.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.NetFX40.exe	VRzw.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\GRAPH.EXE	VRzw.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOICONS.EXE	VRzw.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.People_10.1902.633.0_x64__8wekyb3d8bbwe\PeopleApp.exe	VRzw.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleCrashHandler.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jarsigner.exe	VRzw.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoev.exe	VRzw.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PDFREFLOW.EXE	VRzw.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX64\Microsoft Analysis Services\AS OLEDB\140\SQLDumper.exe	VRzw.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe	VRzw.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\WINWORD.EXE	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jjs.exe	VRzw.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate32.exe	VRzw.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\WORDICON.EXE	VRzw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jjs.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javac.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javacpl.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\java-rmi.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\orbd.exe	VRzw.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\filecompare.exe	VRzw.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\LocalBridge.exe	VRzw.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Eula.exe	VRzw.exe
File opened for modification	C:\Program Files\7-Zip\7zG.exe	VRzw.exe
File opened for modification	C:\Program Files\Mozilla Firefox\updater.exe	VRzw.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOXMLED.EXE	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\policytool.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jp2launcher.exe	VRzw.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.123\chrome_pwa_launcher.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\servertool.exe	VRzw.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.exe	VRzw.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.Loader.exe	VRzw.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\SQLDumper.exe	VRzw.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	27bd27be65060ccc7e3723e082fdf628f2cfb6535cb31d995df672dd362f3674.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	VRzw.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
908	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1448 wrote to memory of 4708	1448	27bd27be65060ccc7e3723e082fdf628f2cfb6535cb31d995df672dd362f3674.exe	87
PID 1448 wrote to memory of 4708	1448	27bd27be65060ccc7e3723e082fdf628f2cfb6535cb31d995df672dd362f3674.exe	87
PID 1448 wrote to memory of 4708	1448	27bd27be65060ccc7e3723e082fdf628f2cfb6535cb31d995df672dd362f3674.exe	87
PID 4708 wrote to memory of 1032	4708	VRzw.exe	92
PID 4708 wrote to memory of 1032	4708	VRzw.exe	92
PID 4708 wrote to memory of 1032	4708	VRzw.exe	92

C:\Users\Admin\AppData\Local\Temp\27bd27be65060ccc7e3723e082fdf628f2cfb6535cb31d995df672dd362f3674.exe
"C:\Users\Admin\AppData\Local\Temp\27bd27be65060ccc7e3723e082fdf628f2cfb6535cb31d995df672dd362f3674.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1448
- C:\Users\Admin\AppData\Local\Temp\VRzw.exe
  C:\Users\Admin\AppData\Local\Temp\VRzw.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:4708
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\0de962a2.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1032

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODIxNjkiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1MzE4NTEwMTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MTAwNTAzMjU2Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:908

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\Microsoft\Windows\INetCache\IE\OEEYYCOE\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\0de962a2.bat

Filesize
183B

MD5
8f5830e7ea71fcb992b9110620a798ce

SHA1
2815b06e031896ded2b5905f27e8aa2d7b83ff90

SHA256
d2f788d590e6b49c4728076bec05ff0eca2101df24ccfb21bf4ca6d0583667a7

SHA512
c8947fa819cf3ab365aa9e243d31daa12e8af6a35fd04518d37d5819bf2f62d2ed0595da75df1323f671f5b0fd0386da1076a52c71475c25d0f59ad294a798e5

Download Submit
C:\Users\Admin\AppData\Local\Temp\67EA597B.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/1448-0-0x0000000000E10000-0x0000000000E39000-memory.dmp

Filesize
164KB

Download
memory/1448-6-0x0000000000E10000-0x0000000000E39000-memory.dmp

Filesize
164KB

Download
memory/4708-4-0x0000000000060000-0x0000000000069000-memory.dmp

Filesize
36KB

Download
memory/4708-8-0x0000000000060000-0x0000000000069000-memory.dmp

Filesize
36KB

Download