bdaejec | b3ef8b8d3bf02da4f2d7338f3f0e53261376883e4a1f9dc97f79be7dd9d59535

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16-01-2025 02:38

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General

Target

b3ef8b8d3bf02da4f2d7338f3f0e53261376883e4a1f9dc97f79be7dd9d59535.exe
Size

96KB
MD5

e02b739deb3c2c69e74b0e162752be8b
SHA1

6f6f6af5744013e40022665138c8f8b590f84aa9
SHA256

b3ef8b8d3bf02da4f2d7338f3f0e53261376883e4a1f9dc97f79be7dd9d59535
SHA512

e73ded6500e9b3395f9643da379a6186079dcd96654d7b5de0867a7daf5acd32cbf8b46e41262b5fb805fc7fd073462eef7eef8479ad5e73a867bcfc68ee601a
SSDEEP

1536:MqPjvlpp/06w6Px9+3cu9V+gKf8GCq2iW7z+:MqPL1/7w6ZAs+VBKkGCHS

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/1968-14-0x0000000000280000-0x0000000000289000-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/0x000f000000012245-2.dat	aspack_v212_v242

Executes dropped EXE 1 IoCs

pid	Process
1968	mhW.exe

Loads dropped DLL 2 IoCs

pid	Process
2996	b3ef8b8d3bf02da4f2d7338f3f0e53261376883e4a1f9dc97f79be7dd9d59535.exe
2996	b3ef8b8d3bf02da4f2d7338f3f0e53261376883e4a1f9dc97f79be7dd9d59535.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Windows Mail\wabmig.exe	mhW.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Setup Files\{AC76BA86-7AD7-1033-7B44-A90000000001}\Setup.exe	mhW.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\GROOVEMN.EXE	mhW.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\appletviewer.exe	mhW.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jhat.exe	mhW.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\javaws.exe	mhW.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\launcher.exe	mhW.exe
File opened for modification	C:\Program Files\Java\jre7\bin\ktab.exe	mhW.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSOUC.EXE	mhW.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ONENOTEM.EXE	mhW.exe
File opened for modification	C:\Program Files\Windows Mail\wab.exe	mhW.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroBroker.exe	mhW.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jarsigner.exe	mhW.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\klist.exe	mhW.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice.exe	mhW.exe
File opened for modification	C:\Program Files\Mozilla Firefox\plugin-container.exe	mhW.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc-cache-gen.exe	mhW.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\java.exe	mhW.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\uninstall.exe	mhW.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe	mhW.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Wordconv.exe	mhW.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\A3DUtility.exe	mhW.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\Installer\chrmstp.exe	mhW.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\wsgen.exe	mhW.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\jabswitch.exe	mhW.exe
File opened for modification	C:\Program Files\Microsoft Games\Multiplayer\Backgammon\bckgzm.exe	mhW.exe
File opened for modification	C:\Program Files\Mozilla Firefox\crashreporter.exe	mhW.exe
File opened for modification	C:\Program Files\Mozilla Firefox\minidump-analyzer.exe	mhW.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\SCANPST.EXE	mhW.exe
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\Uninstall.exe	mhW.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\notification_helper.exe	mhW.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome.exe	mhW.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\ssvagent.exe	mhW.exe
File opened for modification	C:\Program Files\Java\jre7\bin\jabswitch.exe	mhW.exe
File opened for modification	C:\Program Files\Java\jre7\bin\klist.exe	mhW.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroTextExtractor.exe	mhW.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OUTLOOK.EXE	mhW.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE	mhW.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jcmd.exe	mhW.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\pack200.exe	mhW.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\tnameserv.exe	mhW.exe
File opened for modification	C:\Program Files\Java\jre7\bin\tnameserv.exe	mhW.exe
File opened for modification	C:\Program Files\Microsoft Games\Chess\Chess.exe	mhW.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jconsole.exe	mhW.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\wsimport.exe	mhW.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\java-rmi.exe	mhW.exe
File opened for modification	C:\Program Files\Microsoft Games\Solitaire\Solitaire.exe	mhW.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSTORDB.EXE	mhW.exe
File opened for modification	C:\Program Files\Microsoft Games\Minesweeper\MineSweeper.exe	mhW.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe	mhW.exe
File opened for modification	C:\Program Files\Windows Journal\PDIALOG.exe	mhW.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\kinit.exe	mhW.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\ktab.exe	mhW.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\unpack200.exe	mhW.exe
File opened for modification	C:\Program Files\Java\jre7\bin\ssvagent.exe	mhW.exe
File opened for modification	C:\Program Files\Java\jre7\bin\unpack200.exe	mhW.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSTORE.EXE	mhW.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PPTICO.EXE	mhW.exe
File opened for modification	C:\Program Files\Java\jre7\bin\java.exe	mhW.exe
File opened for modification	C:\Program Files\Java\jre7\bin\rmid.exe	mhW.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdate.exe	mhW.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\chrome_pwa_launcher.exe	mhW.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe	mhW.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\native2ascii.exe	mhW.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	mhW.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b3ef8b8d3bf02da4f2d7338f3f0e53261376883e4a1f9dc97f79be7dd9d59535.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2996 wrote to memory of 1968	2996	b3ef8b8d3bf02da4f2d7338f3f0e53261376883e4a1f9dc97f79be7dd9d59535.exe	30
PID 2996 wrote to memory of 1968	2996	b3ef8b8d3bf02da4f2d7338f3f0e53261376883e4a1f9dc97f79be7dd9d59535.exe	30
PID 2996 wrote to memory of 1968	2996	b3ef8b8d3bf02da4f2d7338f3f0e53261376883e4a1f9dc97f79be7dd9d59535.exe	30
PID 2996 wrote to memory of 1968	2996	b3ef8b8d3bf02da4f2d7338f3f0e53261376883e4a1f9dc97f79be7dd9d59535.exe	30
PID 1968 wrote to memory of 2552	1968	mhW.exe	33
PID 1968 wrote to memory of 2552	1968	mhW.exe	33
PID 1968 wrote to memory of 2552	1968	mhW.exe	33
PID 1968 wrote to memory of 2552	1968	mhW.exe	33

C:\Users\Admin\AppData\Local\Temp\b3ef8b8d3bf02da4f2d7338f3f0e53261376883e4a1f9dc97f79be7dd9d59535.exe
"C:\Users\Admin\AppData\Local\Temp\b3ef8b8d3bf02da4f2d7338f3f0e53261376883e4a1f9dc97f79be7dd9d59535.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2996
- C:\Users\Admin\AppData\Local\Temp\mhW.exe
  C:\Users\Admin\AppData\Local\Temp\mhW.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1968
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\1fc95dd1.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2552

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\BQQODH7V\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\107257B7.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

Download Submit
C:\Users\Admin\AppData\Local\Temp\1fc95dd1.bat

Filesize
181B

MD5
8507a9ba83634a409b73832e25230883

SHA1
a464657ab01d90ccbd88fb1f134ec56bc5b42bbd

SHA256
2aa8e92f57b483e1f30a7858bc77dd547648beb1c4de928143fe001db61c9310

SHA512
7fd4106e8e54c8bfd2449d67be48deabba98291ff3078c662d84f14fd4a9e803e1002d9d97b2c9f8aaeae26a1088b91b43a06a9502737797e0589cec1f723bba

Download Submit
\Users\Admin\AppData\Local\Temp\mhW.exe

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/1968-14-0x0000000000280000-0x0000000000289000-memory.dmp

Filesize
36KB

Download
memory/2996-0-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2996-5-0x00000000000F0000-0x00000000000F9000-memory.dmp

Filesize
36KB

Download
memory/2996-12-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download