bdaejec | 2a72afe6eb783cf0b9bcea82b6e4fa87ba8e6d94a11908e60dee87517446224e

Analysis

max time kernel
117s
max time network
120s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
20-12-2024 09:17

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2a72afe6eb783cf0b9bcea82b6e4fa87ba8e6d94a11908e60dee87517446224e.exe
Size

141KB
MD5

4dae1ddd256a815242b9f6d6f8c8ddec
SHA1

fe4c65aea8d7da1ad89213f7cbeecaa909436825
SHA256

2a72afe6eb783cf0b9bcea82b6e4fa87ba8e6d94a11908e60dee87517446224e
SHA512

64b66c837050d1ccaa92e3ccf3083b0754bf0c039941f91e09dfef5765a6d006d52512d2bf05e135b13b9c26a267e519d6b203e88a5313aa5d6926143c1c64e7
SSDEEP

3072:pc/QPqpDnKYSO40L58FvumU9aDtxG12X85cXaGCH:IQPq1nKLOxCM4A2Xvr

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
behavioral1/memory/2764-43-0x0000000001190000-0x0000000001199000-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
behavioral1/files/0x00090000000120f9-12.dat	aspack_v212_v242

Executes dropped EXE 1 IoCs

pid	Process
2764	tBknj.exe

Loads dropped DLL 2 IoCs

pid	Process
2224	2a72afe6eb783cf0b9bcea82b6e4fa87ba8e6d94a11908e60dee87517446224e.exe
2224	2a72afe6eb783cf0b9bcea82b6e4fa87ba8e6d94a11908e60dee87517446224e.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Microsoft Games\Multiplayer\Backgammon\bckgzm.exe	tBknj.exe
File opened for modification	C:\Program Files\Mozilla Firefox\default-browser-agent.exe	tBknj.exe
File opened for modification	C:\Program Files\Windows Mail\wabmig.exe	tBknj.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\GROOVEMN.EXE	tBknj.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\Installer\chrmstp.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jvisualvm.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jre7\bin\servertool.exe	tBknj.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Eula.exe	tBknj.exe
File opened for modification	C:\Program Files (x86)\Google\Update\DisabledGoogleUpdate.exe	tBknj.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ACCICONS.EXE	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\pack200.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jre7\bin\rmiregistry.exe	tBknj.exe
File opened for modification	C:\Program Files\Windows Photo Viewer\ImagingDevices.exe	tBknj.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\IEContentService.exe	tBknj.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\SCANPST.EXE	tBknj.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\XLICONS.EXE	tBknj.exe
File opened for modification	C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jdb.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jre7\bin\java-rmi.exe	tBknj.exe
File opened for modification	C:\Program Files\Microsoft Games\Minesweeper\MineSweeper.exe	tBknj.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\INFOPATH.EXE	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\rmiregistry.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\keytool.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jre7\bin\ssvagent.exe	tBknj.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\WORDICON.EXE	tBknj.exe
File opened for modification	C:\Program Files\Microsoft Games\Chess\Chess.exe	tBknj.exe
File opened for modification	C:\Program Files\Mozilla Firefox\uninstall\helper.exe	tBknj.exe
File opened for modification	C:\Program Files\Windows Defender\MSASCui.exe	tBknj.exe
File opened for modification	C:\Program Files\Mozilla Firefox\private_browsing.exe	tBknj.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSQRY32.EXE	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javaws.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\wsimport.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jre7\bin\jp2launcher.exe	tBknj.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\Installer\setup.exe	tBknj.exe
File opened for modification	C:\Program Files\Mozilla Firefox\pingsender.exe	tBknj.exe
File opened for modification	C:\Program Files\Windows Journal\PDIALOG.exe	tBknj.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroBroker.exe	tBknj.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Download\{8A69D345-D564-463C-AFF1-A69D9E530F96}\106.0.5249.119\chrome_installer.exe	tBknj.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\misc.exe	tBknj.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\wabmig.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javadoc.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\javaws.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jre7\bin\orbd.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\policytool.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\xjc.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\jp2launcher.exe	tBknj.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleCrashHandler64.exe	tBknj.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Install\{746C00E3-D163-4E65-BDB2-B93B068F8BCB}\chrome_installer.exe	tBknj.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\notification_helper.exe	tBknj.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome_proxy.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jconsole.exe	tBknj.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\sidebar.exe	tBknj.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\GROOVE.EXE	tBknj.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSTORE.EXE	tBknj.exe
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\Uninstall.exe	tBknj.exe
File opened for modification	C:\Program Files\Mozilla Firefox\crashreporter.exe	tBknj.exe
File opened for modification	C:\Program Files\Mozilla Firefox\minidump-analyzer.exe	tBknj.exe
File opened for modification	C:\Program Files\Mozilla Firefox\updater.exe	tBknj.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\reader_sl.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\schemagen.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\pack200.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jre7\bin\rmid.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\keytool.exe	tBknj.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroTextExtractor.exe	tBknj.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	2a72afe6eb783cf0b9bcea82b6e4fa87ba8e6d94a11908e60dee87517446224e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tBknj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2224 wrote to memory of 2764	2224	2a72afe6eb783cf0b9bcea82b6e4fa87ba8e6d94a11908e60dee87517446224e.exe	32
PID 2224 wrote to memory of 2764	2224	2a72afe6eb783cf0b9bcea82b6e4fa87ba8e6d94a11908e60dee87517446224e.exe	32
PID 2224 wrote to memory of 2764	2224	2a72afe6eb783cf0b9bcea82b6e4fa87ba8e6d94a11908e60dee87517446224e.exe	32
PID 2224 wrote to memory of 2764	2224	2a72afe6eb783cf0b9bcea82b6e4fa87ba8e6d94a11908e60dee87517446224e.exe	32
PID 2764 wrote to memory of 2704	2764	tBknj.exe	33
PID 2764 wrote to memory of 2704	2764	tBknj.exe	33
PID 2764 wrote to memory of 2704	2764	tBknj.exe	33
PID 2764 wrote to memory of 2704	2764	tBknj.exe	33

C:\Users\Admin\AppData\Local\Temp\2a72afe6eb783cf0b9bcea82b6e4fa87ba8e6d94a11908e60dee87517446224e.exe
"C:\Users\Admin\AppData\Local\Temp\2a72afe6eb783cf0b9bcea82b6e4fa87ba8e6d94a11908e60dee87517446224e.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Users\Admin\AppData\Local\Temp\tBknj.exe
  C:\Users\Admin\AppData\Local\Temp\tBknj.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2764
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\1046720d.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2704

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\K0PVW9XR\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\1046720d.bat

Filesize
185B

MD5
69adaf92d597775e1dbed6df20e8504e

SHA1
86d8ff290be8d0cee5acfcf1cf65d0a99ff3055f

SHA256
e175c3a770ecab012c1aa3ff43d373f7fea74bfc150beaa1a3c99a80b9d199c3

SHA512
5ea4f98f5a0cfdf1bf6213d27c1c4fe385657ed59d09eda01071d6f2314066ac02f1722d2d26710e09fb3d9a50bb36a78a2ca26fe0bf473bea3fd37c4203094c

Download Submit
C:\Users\Admin\AppData\Local\Temp\3F18086E.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/2224-0-0x0000000001260000-0x0000000001288000-memory.dmp

Filesize
160KB

Download
memory/2224-10-0x0000000001190000-0x0000000001199000-memory.dmp

Filesize
36KB

Download
memory/2224-9-0x0000000001190000-0x0000000001199000-memory.dmp

Filesize
36KB

Download
memory/2224-14-0x0000000001260000-0x0000000001288000-memory.dmp

Filesize
160KB

Download
memory/2764-11-0x0000000001190000-0x0000000001199000-memory.dmp

Filesize
36KB

Download
memory/2764-43-0x0000000001190000-0x0000000001199000-memory.dmp

Filesize
36KB

Download