bdaejec | c5d6c0a69e5fd1c372c39dee82ab4f5ccc3c7b298a18db76f5807fb94154685a

Analysis

max time kernel
140s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19/01/2025, 08:37

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General

Target

c5d6c0a69e5fd1c372c39dee82ab4f5ccc3c7b298a18db76f5807fb94154685a.exe
Size

313KB
MD5

9c3ec6b0ddfc4213212948ec3d1aeaac
SHA1

65512cd09b6bdee42ebbbe24ec7844e8a0e6c824
SHA256

c5d6c0a69e5fd1c372c39dee82ab4f5ccc3c7b298a18db76f5807fb94154685a
SHA512

e1201809a89b8826cc19f08e872be5be5fdf10cc41aac448240e839841542ed4c18b297a76e41c999fa05a99cf346a79fcb3add22e78fcff0fb1d1db988e025d
SSDEEP

6144:7qV54oUeSsMY3j0cI8rdYEylF2EHJ8Sj6vzHrh8wDVU3wMs9ZFWW:7qV5dU7oTWKYEEF5J87vzLh8aVJS

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/4660-48-0x0000000000C80000-0x0000000000C89000-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/0x000c000000023b11-3.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	YrhAsn.exe

Executes dropped EXE 1 IoCs

pid	Process
4660	YrhAsn.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1952-0-0x0000000000400000-0x00000000004D8000-memory.dmp	upx
behavioral2/memory/1952-50-0x0000000000400000-0x00000000004D8000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javaws.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\pack200.exe	YrhAsn.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\createdump.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Integration\Addons\OneDriveSetup.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOSREC.EXE	YrhAsn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\onenoteshare.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javah.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\servertool.exe	YrhAsn.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\wow_helper.exe	YrhAsn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\Maps.exe	YrhAsn.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jar.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstat.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\kinit.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Mozilla Firefox\pingsender.exe	YrhAsn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebMediaExtensions_1.0.20875.0_x64__8wekyb3d8bbwe\Microsoft.WebMediaExtensions.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jhat.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate32.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate64.exe	YrhAsn.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32Info.exe	YrhAsn.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateComRegisterShell64.exe	YrhAsn.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Install\{CA9E0780-5A2C-43F8-9E63-52BCB11A02D4}\chrome_installer.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\NAMECONTROLSERVER.EXE	YrhAsn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\SQLDumper.exe	YrhAsn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.VP9VideoExtensions_1.0.22681.0_x64__8wekyb3d8bbwe\codecpacks.VP9.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\unpack200.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoev.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SDXHelperBgt.exe	YrhAsn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\LocalBridge.exe	YrhAsn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\XboxApp.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\klist.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javacpl.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\servertool.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\officeappguardwin32.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PDFREFLOW.EXE	YrhAsn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\Wordconv.exe	YrhAsn.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\createdump.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\extcheck.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Installer\chrmstp.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\native2ascii.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jabswitch.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Integration\Integrator.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoasb.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\tnameserv.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ssvagent.exe	YrhAsn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\YourPhone.exe	YrhAsn.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateOnDemand.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jconsole.exe	YrhAsn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\Cortana.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\OLicenseHeartbeat.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSQRY32.EXE	YrhAsn.exe
File opened for modification	C:\Program Files\Windows Mail\wab.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javaws.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection.exe	YrhAsn.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\32BitMAPIBroker.exe	YrhAsn.exe
File opened for modification	C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jjs.exe	YrhAsn.exe
File opened for modification	C:\Program Files\Mozilla Firefox\uninstall\helper.exe	YrhAsn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\View3D.ResourceResolver.exe	YrhAsn.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Browser\WCChromeExtn\WCChromeNativeMessagingHost.exe	YrhAsn.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\wabmig.exe	YrhAsn.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	YrhAsn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c5d6c0a69e5fd1c372c39dee82ab4f5ccc3c7b298a18db76f5807fb94154685a.exe

Modifies registry class 10 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PAWN.Script\DefaultIcon	c5d6c0a69e5fd1c372c39dee82ab4f5ccc3c7b298a18db76f5807fb94154685a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PAWN.Script	c5d6c0a69e5fd1c372c39dee82ab4f5ccc3c7b298a18db76f5807fb94154685a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.pwn\ = "PAWN.Script"	c5d6c0a69e5fd1c372c39dee82ab4f5ccc3c7b298a18db76f5807fb94154685a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PAWN.Script\shell\Open\command\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\c5d6c0a69e5fd1c372c39dee82ab4f5ccc3c7b298a18db76f5807fb94154685a.exe \"%1\""	c5d6c0a69e5fd1c372c39dee82ab4f5ccc3c7b298a18db76f5807fb94154685a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.pwn	c5d6c0a69e5fd1c372c39dee82ab4f5ccc3c7b298a18db76f5807fb94154685a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PAWN.Script\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\c5d6c0a69e5fd1c372c39dee82ab4f5ccc3c7b298a18db76f5807fb94154685a.exe,1"	c5d6c0a69e5fd1c372c39dee82ab4f5ccc3c7b298a18db76f5807fb94154685a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PAWN.Script\shell	c5d6c0a69e5fd1c372c39dee82ab4f5ccc3c7b298a18db76f5807fb94154685a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PAWN.Script\shell\ = "Open"	c5d6c0a69e5fd1c372c39dee82ab4f5ccc3c7b298a18db76f5807fb94154685a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PAWN.Script\shell\Open\command	c5d6c0a69e5fd1c372c39dee82ab4f5ccc3c7b298a18db76f5807fb94154685a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PAWN.Script\shell\Open	c5d6c0a69e5fd1c372c39dee82ab4f5ccc3c7b298a18db76f5807fb94154685a.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1952 wrote to memory of 4660	1952	c5d6c0a69e5fd1c372c39dee82ab4f5ccc3c7b298a18db76f5807fb94154685a.exe	82
PID 1952 wrote to memory of 4660	1952	c5d6c0a69e5fd1c372c39dee82ab4f5ccc3c7b298a18db76f5807fb94154685a.exe	82
PID 1952 wrote to memory of 4660	1952	c5d6c0a69e5fd1c372c39dee82ab4f5ccc3c7b298a18db76f5807fb94154685a.exe	82
PID 4660 wrote to memory of 1604	4660	YrhAsn.exe	83
PID 4660 wrote to memory of 1604	4660	YrhAsn.exe	83
PID 4660 wrote to memory of 1604	4660	YrhAsn.exe	83

C:\Users\Admin\AppData\Local\Temp\c5d6c0a69e5fd1c372c39dee82ab4f5ccc3c7b298a18db76f5807fb94154685a.exe
"C:\Users\Admin\AppData\Local\Temp\c5d6c0a69e5fd1c372c39dee82ab4f5ccc3c7b298a18db76f5807fb94154685a.exe"
1⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1952
- C:\Users\Admin\AppData\Local\Temp\YrhAsn.exe
  C:\Users\Admin\AppData\Local\Temp\YrhAsn.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:4660
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\4a415a33.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1604

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FQRZN8O7\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\3398397E.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

Download Submit
C:\Users\Admin\AppData\Local\Temp\4a415a33.bat

Filesize
187B

MD5
fb29c67206059457a1f4e33ffa624ab1

SHA1
c01aeff36d2e27a469d47d6f67e20f03dd5433d0

SHA256
baf59c09b01c2ba5ed2b344ea0acd79bdb5f95e1d533ea8e2c463266002ab757

SHA512
6308625b29658e0ae618cc63843e0b95fa88f3ce3ccac3a7883a6dfc5aae8d1c53749f453e76f88fee28bf62e1c1dca77a20fdf52beb5b847def9daf2c8a5109

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/1952-0-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/1952-7-0x0000000000AD0000-0x0000000000AD1000-memory.dmp

Filesize
4KB

Download
memory/1952-50-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/1952-52-0x0000000000AD0000-0x0000000000AD1000-memory.dmp

Filesize
4KB

Download
memory/4660-4-0x0000000000C80000-0x0000000000C89000-memory.dmp

Filesize
36KB

Download
memory/4660-48-0x0000000000C80000-0x0000000000C89000-memory.dmp

Filesize
36KB

Download