bdaejec | 2f2b62f010f743124767b36ed6e0c3f885a1ad0db036a65dca5f7ec20dc74919

Analysis

max time kernel
132s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20250211-en
resource tags

arch:x64arch:x86image:win10v2004-20250211-enlocale:en-usos:windows10-2004-x64system
submitted
13-02-2025 18:22

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General

Target

Loader.exe
Size

593KB
MD5

7513aaaa736bf8d2b2a6d06a007fa6d2
SHA1

00d0077fd72d0046da42744474728b668776a1db
SHA256

2f2b62f010f743124767b36ed6e0c3f885a1ad0db036a65dca5f7ec20dc74919
SHA512

d8e0cc24274a075ea7ffd6745eb6d294de3639fcd51765499cab1966f53dff7f365325ab523280cca7b456eb23930f7776e77a968485a5f796932d4bcb424567
SSDEEP

12288:fmeOfxCoEB9DzYwLM8sNfuuKSmtkTGKKlmJj9//k/rTcPcYYYgYYYYYYYgYYYYYH:fxOp5uVLyqKKlmJj9//k//Ic

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/1664-16-0x0000000000B00000-0x0000000000B09000-memory.dmp	family_bdaejec_backdoor

Downloads MZ/PE file 1 IoCs

flow	pid	Process
45	2700	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/0x000b000000023cb3-4.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-1-5-21-1318997816-2171176372-1451785247-1000\Control Panel\International\Geo\Nation	ZavQTq.exe

Executes dropped EXE 2 IoCs

pid	Process
1664	ZavQTq.exe
3336	qCbGhQFiu0X7z4.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jcmd.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOXMLED.EXE	ZavQTq.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleCrashHandler64.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javapackager.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate32.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jinfo.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\native2ascii.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\VPREVIEW.EXE	ZavQTq.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc-cache-gen.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jarsigner.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\policytool.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SkypeSrv\SKYPESERVER.EXE	ZavQTq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\WORDICON.EXE	ZavQTq.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Mozilla Firefox\private_browsing.exe	ZavQTq.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\wab.exe	ZavQTq.exe
File opened for modification	C:\Program Files\7-Zip\7zG.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\keytool.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javacpl.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\WINWORD.EXE	ZavQTq.exe
File opened for modification	C:\Program Files\Microsoft Office 15\ClientX64\OfficeClickToRun.exe	ZavQTq.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\View3D.ResourceResolver.exe	ZavQTq.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ScreenSketch_10.1907.2471.0_x64__8wekyb3d8bbwe\ScreenSketch.exe	ZavQTq.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Xbox.TCUI_1.23.28002.0_x64__8wekyb3d8bbwe\TCUI-App.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\rmiregistry.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\keytool.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SETLANG.EXE	ZavQTq.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppInstallerPythonRedirector.exe	ZavQTq.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxCalendarAppImm.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE	ZavQTq.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeBackgroundHost.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\idlj.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jmap.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\rmid.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javaw.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\rmiregistry.exe	ZavQTq.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javaw.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\pack200.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.NetFX45.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PerfBoost.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SDXHelper.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.123\notification_helper.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\java.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PDFREFLOW.EXE	ZavQTq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SDXHelperBgt.exe	ZavQTq.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1907.3152.0_x64__8wekyb3d8bbwe\PilotshubApp.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\tnameserv.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Source Engine\OSE.EXE	ZavQTq.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.22753.0_x64__8wekyb3d8bbwe\codecpacks.webp.exe	ZavQTq.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.HEIFImageExtension_1.0.22742.0_x64__8wekyb3d8bbwe\codecpacks.heif.exe	ZavQTq.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Wallet_2.4.18324.0_x64__8wekyb3d8bbwe\Microsoft.Wallet.exe	ZavQTq.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\32BitMAPIBroker.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstatd.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ktab.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\klist.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoasb.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\SPREADSHEETCOMPARE.EXE	ZavQTq.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateOnDemand.exe	ZavQTq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\wsgen.exe	ZavQTq.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.People_10.1902.633.0_x64__8wekyb3d8bbwe\PeopleApp.exe	ZavQTq.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 5 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	Loader.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ZavQTq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qCbGhQFiu0X7z4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.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
1516	MicrosoftEdgeUpdate.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2232	Loader.exe
Token: SeDebugPrivilege	3336	qCbGhQFiu0X7z4.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 1664	2232	Loader.exe	91
PID 2232 wrote to memory of 1664	2232	Loader.exe	91
PID 2232 wrote to memory of 1664	2232	Loader.exe	91
PID 2232 wrote to memory of 3336	2232	Loader.exe	92
PID 2232 wrote to memory of 3336	2232	Loader.exe	92
PID 2232 wrote to memory of 3336	2232	Loader.exe	92
PID 1664 wrote to memory of 3272	1664	ZavQTq.exe	102
PID 1664 wrote to memory of 3272	1664	ZavQTq.exe	102
PID 1664 wrote to memory of 3272	1664	ZavQTq.exe	102

C:\Users\Admin\AppData\Local\Temp\Loader.exe
"C:\Users\Admin\AppData\Local\Temp\Loader.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Users\Admin\AppData\Local\Temp\ZavQTq.exe
  C:\Users\Admin\AppData\Local\Temp\ZavQTq.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:1664
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\78ab5309.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3272
- C:\Users\Admin\AppData\Local\Temp\qCbGhQFiu0X7z4.exe
  C:\Users\Admin\AppData\Local\Temp\Loader.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3336

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIyIiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODMzNzEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1NDE5Mjc1MzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0OTgwMjczMzU5Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:1516

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\78ab5309.bat

Filesize
187B

MD5
d554ade8a773e6b88afb11a7ede218d7

SHA1
b8b04e90e97eb3566537f11895df5877bfdd47aa

SHA256
ab619f74a322d8ab936f7839fcd2a6985e938577f6bed6c2fd4e70bf60a8068e

SHA512
ce0ff2e3fd436c06442241527b898da79ff2eb96e970b7e90c193bf4c148c109c4eb2dec281bd142116b9ba4b61bc91c1c5d54bb2ea2ebdfa92b9e2ce09e60c6

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
C:\Users\Admin\AppData\Local\Temp\qCbGhQFiu0X7z4.exe

Filesize
2.7MB

MD5
7075eaf975680dd337f402ec00b0b989

SHA1
6b1ca22120384ccfe10a828ea881963fd922c848

SHA256
ce4fb242dac2fe3cbe253df7f4bd296d9e9bef116649d4ec0ac39089ec4acbd3

SHA512
d03728de3ca1ddc7ee2d640b564aa2ba2b392fdd8895f2cd5f302ca2f027d49853ac4e2d7c141abaecf22859f65171a33ef7504bf334ff963807a3a8c940250a

Download Submit
memory/1664-5-0x0000000000B00000-0x0000000000B09000-memory.dmp

Filesize
36KB

Download
memory/1664-16-0x0000000000B00000-0x0000000000B09000-memory.dmp

Filesize
36KB

Download
memory/2232-0-0x0000000000DD0000-0x0000000000E6A000-memory.dmp

Filesize
616KB

Download
memory/2232-14-0x0000000000DD0000-0x0000000000E6A000-memory.dmp

Filesize
616KB

Download