bdaejec | 2044f5b3d1fea1ae395ce733f5bebca50319ee4a28e804276e9a28c04765c29e

Analysis

max time kernel
117s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27-10-2024 14:46

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General

Target

2044f5b3d1fea1ae395ce733f5bebca50319ee4a28e804276e9a28c04765c29eN.exe
Size

60KB
MD5

58a19a9a0aa6b43144aa8b164317b820
SHA1

a49b9026ea435898d498d620169993861d3b1919
SHA256

2044f5b3d1fea1ae395ce733f5bebca50319ee4a28e804276e9a28c04765c29e
SHA512

8a2ade5d299047df99c1792042e9d70b65d607f7adb521302d0a607725b3a838534c741af00197d43375304243e4c5537405b36df5d94c93526296ae77f871bf
SSDEEP

768:ya1qGZIyiZjaflAkOCpwjWviZKB7JD6gK2QGPL4vzZq2o9W7GsxBbPr:ya1jZCZj83Hpwav4KDDRqGCq2iW7z

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++.

Processes:

resource	yara_rule
behavioral1/memory/3064-29-0x0000000001200000-0x0000000001209000-memory.dmp	family_bdaejec_backdoor

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

Processes:

resource	yara_rule
behavioral1/files/0x0007000000012116-7.dat	aspack_v212_v242

Executes dropped EXE 1 IoCs

Processes:

MRBFXKM.exe

pid	Process
3064	MRBFXKM.exe

Loads dropped DLL 2 IoCs

Processes:

2044f5b3d1fea1ae395ce733f5bebca50319ee4a28e804276e9a28c04765c29eN.exe

pid	Process
2536	2044f5b3d1fea1ae395ce733f5bebca50319ee4a28e804276e9a28c04765c29eN.exe
2536	2044f5b3d1fea1ae395ce733f5bebca50319ee4a28e804276e9a28c04765c29eN.exe

Drops file in Program Files directory 64 IoCs

Processes:

MRBFXKM.exe

description	ioc	Process
File opened for modification	C:\Program Files\Windows Journal\PDIALOG.exe	MRBFXKM.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Install\{49D76B3D-D6A1-4419-AFD0-EDBEA65C21F0}\chrome_installer.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\wsimport.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\javaws.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\keytool.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Microsoft Games\Hearts\Hearts.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Mozilla Firefox\uninstall\helper.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Windows Journal\Journal.exe	MRBFXKM.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSQRY32.EXE	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javaw.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jmc.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\rmid.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\jp2launcher.exe	MRBFXKM.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\reader_sl.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javah.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\unpack200.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Microsoft Games\Solitaire\Solitaire.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Windows Mail\WinMail.exe	MRBFXKM.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateSetup.exe	MRBFXKM.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\WORDICON.EXE	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\servertool.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Mozilla Firefox\private_browsing.exe	MRBFXKM.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\LogTransport2.exe	MRBFXKM.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdate.exe	MRBFXKM.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe	MRBFXKM.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\ONELEV.EXE	MRBFXKM.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\notification_helper.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\xjc.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\kinit.exe	MRBFXKM.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\A3DUtility.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\tnameserv.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Windows Mail\wab.exe	MRBFXKM.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe	MRBFXKM.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Wordconv.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\chrome_pwa_launcher.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javaws.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jps.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jvisualvm.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\serialver.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\java-rmi.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\lib\nbexec.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jre7\bin\tnameserv.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javac.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javadoc.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\klist.exe	MRBFXKM.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ONENOTEM.EXE	MRBFXKM.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\wab.exe	MRBFXKM.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\sidebar.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Microsoft Office\Office14\MSOHTMED.EXE	MRBFXKM.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSOHTMED.EXE	MRBFXKM.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OUTLOOK.EXE	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jcmd.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\ktab.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\rmiregistry.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jre7\bin\javaws.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jre7\bin\jp2launcher.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jre7\bin\policytool.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	MRBFXKM.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateOnDemand.exe	MRBFXKM.exe
File opened for modification	C:\Program Files (x86)\Google\Update\DisabledGoogleUpdate.exe	MRBFXKM.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

Processes:

2044f5b3d1fea1ae395ce733f5bebca50319ee4a28e804276e9a28c04765c29eN.exeMRBFXKM.execmd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2044f5b3d1fea1ae395ce733f5bebca50319ee4a28e804276e9a28c04765c29eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MRBFXKM.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

2044f5b3d1fea1ae395ce733f5bebca50319ee4a28e804276e9a28c04765c29eN.exeMRBFXKM.exe

description	pid	Process	procid_target
PID 2536 wrote to memory of 3064	2536	2044f5b3d1fea1ae395ce733f5bebca50319ee4a28e804276e9a28c04765c29eN.exe	30
PID 2536 wrote to memory of 3064	2536	2044f5b3d1fea1ae395ce733f5bebca50319ee4a28e804276e9a28c04765c29eN.exe	30
PID 2536 wrote to memory of 3064	2536	2044f5b3d1fea1ae395ce733f5bebca50319ee4a28e804276e9a28c04765c29eN.exe	30
PID 2536 wrote to memory of 3064	2536	2044f5b3d1fea1ae395ce733f5bebca50319ee4a28e804276e9a28c04765c29eN.exe	30
PID 3064 wrote to memory of 2748	3064	MRBFXKM.exe	32
PID 3064 wrote to memory of 2748	3064	MRBFXKM.exe	32
PID 3064 wrote to memory of 2748	3064	MRBFXKM.exe	32
PID 3064 wrote to memory of 2748	3064	MRBFXKM.exe	32

C:\Users\Admin\AppData\Local\Temp\2044f5b3d1fea1ae395ce733f5bebca50319ee4a28e804276e9a28c04765c29eN.exe
"C:\Users\Admin\AppData\Local\Temp\2044f5b3d1fea1ae395ce733f5bebca50319ee4a28e804276e9a28c04765c29eN.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Users\Admin\AppData\Local\Temp\MRBFXKM.exe
  C:\Users\Admin\AppData\Local\Temp\MRBFXKM.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3064
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\5d041fcb.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2748

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\Temp\5d041fcb.bat

Filesize
189B

MD5
3dbb127982b6b3de04d5a81d9aa03806

SHA1
4b3c3ce8ed07af3742877f5cfca4b1d627a54d44

SHA256
f167b734098e67a38acb3712b5ecf88d5073c4ad6156e2d49cc58ca40065bccc

SHA512
86bdb1f65ae4a6d5c5d5477974927b3cb6562adace22503ed3607d4ff8f70b44ef168b70a462cfcda368094f2e51c9223053824646eec511628557c7871cac45

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/2536-0-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2536-8-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3064-10-0x0000000001200000-0x0000000001209000-memory.dmp

Filesize
36KB

Download
memory/3064-29-0x0000000001200000-0x0000000001209000-memory.dmp

Filesize
36KB

Download