bdaejec | 27bd27be65060ccc7e3723e082fdf628f2cfb6535cb31d995df672dd362f3674

Analysis

max time kernel
141s
max time network
141s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12-02-2025 20:15

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General

Target

27bd27be65060ccc7e3723e082fdf628f2cfb6535cb31d995df672dd362f3674.exe
Size

134KB
MD5

f59a71cc895dc3f7e0194dcad482e61a
SHA1

b7408de2e30bc3c304b23c6990661956f050e9e1
SHA256

27bd27be65060ccc7e3723e082fdf628f2cfb6535cb31d995df672dd362f3674
SHA512

a33137ba3db208bf4aaa983fbcc21d46c37c32b2f503663f0848e7b7248f440de5ebb4a8ba77fb146d394ba656322251bbe6dcfc0ad6e5ab6c65c25bf3595897
SSDEEP

768:RuWGWvyDNo1sFBWfzdzemPV1KoukMt9Sbh9SbGDhwIMQGPL4vzZq2o9W7GsxBbPr:RufTDDWLdzBN1KlCDwIPGCq2iW7z

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/2484-11-0x0000000000940000-0x0000000000949000-memory.dmp	family_bdaejec_backdoor
behavioral1/memory/2484-14-0x0000000000940000-0x0000000000949000-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/0x0007000000012117-2.dat	aspack_v212_v242

Executes dropped EXE 1 IoCs

pid	Process
2484	VRzw.exe

Loads dropped DLL 2 IoCs

pid	Process
1796	27bd27be65060ccc7e3723e082fdf628f2cfb6535cb31d995df672dd362f3674.exe
1796	27bd27be65060ccc7e3723e082fdf628f2cfb6535cb31d995df672dd362f3674.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javaws.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jre7\bin\pack200.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jre7\bin\ssvagent.exe	VRzw.exe
File opened for modification	C:\Program Files\Windows Photo Viewer\ImagingDevices.exe	VRzw.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Resource\Icons\SC_Reader.exe	VRzw.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateOnDemand.exe	VRzw.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OIS.EXE	VRzw.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\Installer\setup.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\jabswitch.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jre7\bin\javacpl.exe	VRzw.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\VPREVIEW.EXE	VRzw.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\pack200.exe	VRzw.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroTextExtractor.exe	VRzw.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE	VRzw.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\GROOVEMN.EXE	VRzw.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\WORDICON.EXE	VRzw.exe
File opened for modification	C:\Program Files\Microsoft Games\Solitaire\Solitaire.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\kinit.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\lib\nbexec64.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jre7\bin\javaw.exe	VRzw.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe	VRzw.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\GRAPH.EXE	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jmap.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\wsgen.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\wsimport.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\tnameserv.exe	VRzw.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc-cache-gen.exe	VRzw.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSPUB.EXE	VRzw.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\WinMail.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\klist.exe	VRzw.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	VRzw.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\NAMECONTROLSERVER.EXE	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\orbd.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\javacpl.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jre7\bin\java.exe	VRzw.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice.exe	VRzw.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdate.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\tnameserv.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jre7\bin\keytool.exe	VRzw.exe
File opened for modification	C:\Program Files\Windows Defender\MpCmdRun.exe	VRzw.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\misc.exe	VRzw.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ONENOTE.EXE	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javafxpackager.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javap.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\ktab.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\pack200.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\launcher.exe	VRzw.exe
File opened for modification	C:\Program Files\Microsoft Games\Multiplayer\Backgammon\bckgzm.exe	VRzw.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\INFOPATH.EXE	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\java-rmi.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jcmd.exe	VRzw.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateComRegisterShell64.exe	VRzw.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSOSYNC.EXE	VRzw.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSQRY32.EXE	VRzw.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSTORE.EXE	VRzw.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\policytool.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\javaw.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\servertool.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\lib\nbexec.exe	VRzw.exe
File opened for modification	C:\Program Files\Java\jre7\bin\klist.exe	VRzw.exe
File opened for modification	C:\Program Files\Windows Defender\MSASCui.exe	VRzw.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Download\{8A69D345-D564-463C-AFF1-A69D9E530F96}\106.0.5249.119\chrome_installer.exe	VRzw.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	27bd27be65060ccc7e3723e082fdf628f2cfb6535cb31d995df672dd362f3674.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	VRzw.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1796 wrote to memory of 2484	1796	27bd27be65060ccc7e3723e082fdf628f2cfb6535cb31d995df672dd362f3674.exe	30
PID 1796 wrote to memory of 2484	1796	27bd27be65060ccc7e3723e082fdf628f2cfb6535cb31d995df672dd362f3674.exe	30
PID 1796 wrote to memory of 2484	1796	27bd27be65060ccc7e3723e082fdf628f2cfb6535cb31d995df672dd362f3674.exe	30
PID 1796 wrote to memory of 2484	1796	27bd27be65060ccc7e3723e082fdf628f2cfb6535cb31d995df672dd362f3674.exe	30

C:\Users\Admin\AppData\Local\Temp\27bd27be65060ccc7e3723e082fdf628f2cfb6535cb31d995df672dd362f3674.exe
"C:\Users\Admin\AppData\Local\Temp\27bd27be65060ccc7e3723e082fdf628f2cfb6535cb31d995df672dd362f3674.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1796
- C:\Users\Admin\AppData\Local\Temp\VRzw.exe
  C:\Users\Admin\AppData\Local\Temp\VRzw.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  PID:2484

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\VRzw.exe

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/1796-0-0x0000000000B10000-0x0000000000B39000-memory.dmp

Filesize
164KB

Download
memory/1796-9-0x0000000000B10000-0x0000000000B39000-memory.dmp

Filesize
164KB

Download
memory/2484-11-0x0000000000940000-0x0000000000949000-memory.dmp

Filesize
36KB

Download
memory/2484-14-0x0000000000940000-0x0000000000949000-memory.dmp

Filesize
36KB

Download