bdaejec | bfa2f162df38f24ab650339122304b46eab27c81ef66e7d9585fcae6f82d7cb8

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
24-01-2025 18:49

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General

Target

bfa2f162df38f24ab650339122304b46eab27c81ef66e7d9585fcae6f82d7cb8.exe
Size

6.7MB
MD5

f03b14e62c74d3b050140ff9a7015f13
SHA1

7aa17bf3b1ae7327a63c80f77d265bbfd2a2e578
SHA256

bfa2f162df38f24ab650339122304b46eab27c81ef66e7d9585fcae6f82d7cb8
SHA512

c06bcc4f0a113d44580d71308503795d53ccdb93d86c99fde6432706f95a737dd3b0931a835cb6c5c99257d7457373f3db22cc549dc9b84876094f22ca96a600
SSDEEP

98304:5kaWsAYtVm8xoZV/Cypkj2JY7kXeYfmFao4PWjJ8MjY0:5kaWsAYbZawypka4lYbMJ8MjY0

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. 2 IoCs

Bdaejec is backdoor written in C++.

resource	yara_rule
behavioral1/memory/2364-12-0x0000000000E40000-0x0000000000E49000-memory.dmp	family_bdaejec_backdoor
behavioral1/memory/2364-54-0x0000000000E40000-0x0000000000E49000-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/0x000c000000012280-1.dat	aspack_v212_v242

Executes dropped EXE 1 IoCs

pid	Process
2364	CMckUnD.exe

Loads dropped DLL 2 IoCs

pid	Process
2176	bfa2f162df38f24ab650339122304b46eab27c81ef66e7d9585fcae6f82d7cb8.exe
2176	bfa2f162df38f24ab650339122304b46eab27c81ef66e7d9585fcae6f82d7cb8.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\7-Zip\Uninstall.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\Installer\setup.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\appletviewer.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jinfo.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Microsoft Games\SpiderSolitaire\SpiderSolitaire.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\apt.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\wsimport.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jre7\bin\ktab.exe	CMckUnD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\INFOPATH.EXE	CMckUnD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSACCESS.EXE	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jcmd.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jstat.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\tnameserv.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jre7\bin\kinit.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jre7\bin\ssvagent.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Microsoft Games\Mahjong\Mahjong.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Windows Mail\wabmig.exe	CMckUnD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSOHTMED.EXE	CMckUnD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSPUB.EXE	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\ktab.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jre7\bin\keytool.exe	CMckUnD.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleCrashHandler.exe	CMckUnD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\ONELEV.EXE	CMckUnD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSQRY32.EXE	CMckUnD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ONENOTE.EXE	CMckUnD.exe
File opened for modification	C:\Program Files\7-Zip\7zG.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\rmiregistry.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\rmiregistry.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jre7\bin\java-rmi.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Mozilla Firefox\pingsender.exe	CMckUnD.exe
File opened for modification	C:\Program Files (x86)\Google\Update\DisabledGoogleUpdate.exe	CMckUnD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Microsoft Games\Minesweeper\MineSweeper.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Mozilla Firefox\private_browsing.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Windows Mail\WinMail.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Windows Photo Viewer\ImagingDevices.exe	CMckUnD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\WORDICON.EXE	CMckUnD.exe
File opened for modification	C:\Program Files\7-Zip\7z.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\java.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javah.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\wsgen.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Microsoft Games\Purble Place\PurblePlace.exe	CMckUnD.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Install\{06715A9D-70D2-4C5C-9F8A-D2392905D83D}\chrome_installer.exe	CMckUnD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\SETLANG.EXE	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\klist.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\native2ascii.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\javaws.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Microsoft Games\Multiplayer\Checkers\chkrzm.exe	CMckUnD.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javac.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jhat.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jps.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\pack200.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\lib\nbexec64.exe	CMckUnD.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32Info.exe	CMckUnD.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleCrashHandler64.exe	CMckUnD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\excelcnv.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javap.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\javaw.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Java\jre7\bin\servertool.exe	CMckUnD.exe
File opened for modification	C:\Program Files\Microsoft Games\Solitaire\Solitaire.exe	CMckUnD.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateBroker.exe	CMckUnD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSOSYNC.EXE	CMckUnD.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	CMckUnD.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bfa2f162df38f24ab650339122304b46eab27c81ef66e7d9585fcae6f82d7cb8.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2176 wrote to memory of 2364	2176	bfa2f162df38f24ab650339122304b46eab27c81ef66e7d9585fcae6f82d7cb8.exe	30
PID 2176 wrote to memory of 2364	2176	bfa2f162df38f24ab650339122304b46eab27c81ef66e7d9585fcae6f82d7cb8.exe	30
PID 2176 wrote to memory of 2364	2176	bfa2f162df38f24ab650339122304b46eab27c81ef66e7d9585fcae6f82d7cb8.exe	30
PID 2176 wrote to memory of 2364	2176	bfa2f162df38f24ab650339122304b46eab27c81ef66e7d9585fcae6f82d7cb8.exe	30
PID 2364 wrote to memory of 2340	2364	CMckUnD.exe	33
PID 2364 wrote to memory of 2340	2364	CMckUnD.exe	33
PID 2364 wrote to memory of 2340	2364	CMckUnD.exe	33
PID 2364 wrote to memory of 2340	2364	CMckUnD.exe	33

C:\Users\Admin\AppData\Local\Temp\bfa2f162df38f24ab650339122304b46eab27c81ef66e7d9585fcae6f82d7cb8.exe
"C:\Users\Admin\AppData\Local\Temp\bfa2f162df38f24ab650339122304b46eab27c81ef66e7d9585fcae6f82d7cb8.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2176
- C:\Users\Admin\AppData\Local\Temp\CMckUnD.exe
  C:\Users\Admin\AppData\Local\Temp\CMckUnD.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2364
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\63b00e9b.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2340

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\6G4X5UFP\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\542D7400.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

Download Submit
C:\Users\Admin\AppData\Local\Temp\63b00e9b.bat

Filesize
189B

MD5
431700ea70f46b4bf0a7abe7440500a5

SHA1
e29a694b5f25c5dbc1a1dfbd2a3113b61bc4405e

SHA256
da35aec67b9c2250d9f51513e252b307510f760a9bef49e0e97cff0630581086

SHA512
f91cb9ab6f8f21acd57f431d663644c45880ca7c75218fa794b845b1130c7d1abea3aa02b72f2b772ae57a4be387896e1a48b023ea44b8aa9eea6a0eed635160

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/2176-10-0x0000000000400000-0x000000000102D000-memory.dmp

Filesize
12.2MB

Download
memory/2176-13-0x00000000001B0000-0x00000000001B9000-memory.dmp

Filesize
36KB

Download
memory/2176-11-0x00000000001B0000-0x00000000001B9000-memory.dmp

Filesize
36KB

Download
memory/2176-56-0x0000000000400000-0x000000000102D000-memory.dmp

Filesize
12.2MB

Download
memory/2176-58-0x0000000000400000-0x000000000102D000-memory.dmp

Filesize
12.2MB

Download
memory/2364-12-0x0000000000E40000-0x0000000000E49000-memory.dmp

Filesize
36KB

Download
memory/2364-54-0x0000000000E40000-0x0000000000E49000-memory.dmp

Filesize
36KB

Download