bdaejec | 70783516c21114fb509a7e4b1c4f6ff58e08c481f7ec1dbb3433bcd98837555e

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-11-2024 10:03

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General

Target

bzwa.exe
Size

933KB
MD5

d71ffaa29328353b394dcd613d6935ab
SHA1

464b4fca112e9fb6a299fd44a4b32bc8a1ee4e9f
SHA256

bf698c75cf8e70b00ef0dc1dca1220144aff0c016dc44fd0410e5774da3b2041
SHA512

f457761b6e331a06ead72bf20bc5377d972b42761b2326a6090ad01eaa11bdc71ed9ac4331ef84a7a11ff8cf78bb1f7ffbc7dc7db6f5cbc4ec28faeedd324475
SSDEEP

12288:EJLKppfDhILiihuu2uZZSnBd4OfnJ9YeckuZIcIHwVejWqV:EcppfDhIxSnBKOfHYZ+HwVejP

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/2328-56-0x0000000000380000-0x0000000000389000-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/0x0007000000012117-7.dat	aspack_v212_v242

Executes dropped EXE 1 IoCs

pid	Process
2328	ASvJIZ.exe

Loads dropped DLL 2 IoCs

pid	Process
1680	bzwa.exe
1680	bzwa.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jre7\bin\javaw.exe	ASvJIZ.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSTORE.EXE	ASvJIZ.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\kinit.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jstatd.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\java-rmi.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\keytool.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\orbd.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\lib\nbexec.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\lib\nbexec64.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Java\jre7\bin\ssvagent.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jar.exe	ASvJIZ.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE	ASvJIZ.exe
File opened for modification	C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe	ASvJIZ.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroTextExtractor.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\7-Zip\7zG.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javaw.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Windows Photo Viewer\ImagingDevices.exe	ASvJIZ.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSTORDB.EXE	ASvJIZ.exe
File opened for modification	C:\Program Files\7-Zip\7zFM.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Mozilla Firefox\updater.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Windows Sidebar\sidebar.exe	ASvJIZ.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\INFOPATH.EXE	ASvJIZ.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\chrome_pwa_launcher.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Microsoft Games\Multiplayer\Checkers\chkrzm.exe	ASvJIZ.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\reader_sl.exe	ASvJIZ.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ONENOTE.EXE	ASvJIZ.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jstack.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Microsoft Games\Purble Place\PurblePlace.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Microsoft Games\Solitaire\Solitaire.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Mozilla Firefox\minidump-analyzer.exe	ASvJIZ.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Eula.exe	ASvJIZ.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\CNFNOT32.EXE	ASvJIZ.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OUTLOOK.EXE	ASvJIZ.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\launcher.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\ktab.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\ssvagent.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Microsoft Games\Chess\Chess.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Windows Journal\Journal.exe	ASvJIZ.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSOHTMED.EXE	ASvJIZ.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\schemagen.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\servertool.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\java.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Microsoft Games\Multiplayer\Spades\shvlzm.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Mozilla Firefox\crashreporter.exe	ASvJIZ.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe	ASvJIZ.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\misc.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jsadebugd.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\policytool.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\rmid.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\tnameserv.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Mozilla Firefox\uninstall\helper.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Windows Defender\MSASCui.exe	ASvJIZ.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ACCICONS.EXE	ASvJIZ.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSQRY32.EXE	ASvJIZ.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\orbd.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\rmid.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Windows Journal\PDIALOG.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Windows Mail\WinMail.exe	ASvJIZ.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Download\{8A69D345-D564-463C-AFF1-A69D9E530F96}\106.0.5249.119\chrome_installer.exe	ASvJIZ.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\java-rmi.exe	ASvJIZ.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome_proxy.exe	ASvJIZ.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	bzwa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ASvJIZ.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 2328	1680	bzwa.exe	32
PID 1680 wrote to memory of 2328	1680	bzwa.exe	32
PID 1680 wrote to memory of 2328	1680	bzwa.exe	32
PID 1680 wrote to memory of 2328	1680	bzwa.exe	32
PID 2328 wrote to memory of 3016	2328	ASvJIZ.exe	34
PID 2328 wrote to memory of 3016	2328	ASvJIZ.exe	34
PID 2328 wrote to memory of 3016	2328	ASvJIZ.exe	34
PID 2328 wrote to memory of 3016	2328	ASvJIZ.exe	34

C:\Users\Admin\AppData\Local\Temp\bzwa.exe
"C:\Users\Admin\AppData\Local\Temp\bzwa.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1680
- C:\Users\Admin\AppData\Local\Temp\ASvJIZ.exe
  C:\Users\Admin\AppData\Local\Temp\ASvJIZ.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2328
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\4979750c.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3016

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\2446774C.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

Download Submit
C:\Users\Admin\AppData\Local\Temp\4979750c.bat

Filesize
187B

MD5
4b2476473572c382fe813f354e898fd1

SHA1
eaea7f7af97faab618a71f965e129858e1408e5f

SHA256
e67df32ac23fc511ad4d42b7cac4bd95675acdcc6016d9ce93693533ecfed72a

SHA512
d1c606db82b726dee672763a8c9dc2f9a38c68ef46f8c9b32af1dba248e45ba39195701c284fdbe5f7768a53c7795091b83931e6a3744b87111a12d5bd23ba55

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/1680-0-0x0000000000850000-0x0000000000941000-memory.dmp

Filesize
964KB

Download
memory/1680-9-0x0000000000030000-0x0000000000039000-memory.dmp

Filesize
36KB

Download
memory/1680-12-0x00000000007D0000-0x0000000000810000-memory.dmp

Filesize
256KB

Download
memory/1680-10-0x0000000000030000-0x0000000000039000-memory.dmp

Filesize
36KB

Download
memory/1680-58-0x0000000000850000-0x0000000000941000-memory.dmp

Filesize
964KB

Download
memory/1680-59-0x00000000007D0000-0x0000000000810000-memory.dmp

Filesize
256KB

Download
memory/2328-13-0x0000000000380000-0x0000000000389000-memory.dmp

Filesize
36KB

Download
memory/2328-56-0x0000000000380000-0x0000000000389000-memory.dmp

Filesize
36KB

Download