bdaejec | 208b76092a7d39987ceeb66ec607b3096a9bce88984e004c0958f15f50c1a761

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
30/11/2024, 20:23

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General

Target

208b76092a7d39987ceeb66ec607b3096a9bce88984e004c0958f15f50c1a761.exe
Size

583KB
MD5

f68deaf15799a7741a0264ba8bc25675
SHA1

c2f35a53d347f577389ce6d2111456c983f5ec11
SHA256

208b76092a7d39987ceeb66ec607b3096a9bce88984e004c0958f15f50c1a761
SHA512

8b72b2969348f0bd8960f3e542ea40aeb2f588f28e4dd2c8031e9cea1e10e9224c0f1f4d40a0c805d4630b35a2bb55e01cf1649ff3e2019074fc95dc40331c3e
SSDEEP

12288:ZgCYxPVQ1KRLLIyDASbumfbKFsdrojwSzunLEjzaQ/K1V+qr:ZgCYQ1LGum4sx8Kofd/uV+w

Score

10^/10

bdaejec aspackv2 backdoor discovery upx

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/1816-16-0x0000000000FD0000-0x0000000000FD9000-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/0x000e000000012261-10.dat	aspack_v212_v242

Executes dropped EXE 1 IoCs

pid	Process
1816	fvkcA.exe

Loads dropped DLL 2 IoCs

pid	Process
2600	208b76092a7d39987ceeb66ec607b3096a9bce88984e004c0958f15f50c1a761.exe
2600	208b76092a7d39987ceeb66ec607b3096a9bce88984e004c0958f15f50c1a761.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2600-1-0x0000000000400000-0x0000000000586000-memory.dmp	upx
behavioral1/memory/2600-15-0x0000000000400000-0x0000000000586000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\java-rmi.exe	fvkcA.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\uninstall.exe	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32Info.exe	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Download\{8A69D345-D564-463C-AFF1-A69D9E530F96}\106.0.5249.119\chrome_installer.exe	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\Uninstall.exe	fvkcA.exe
File opened for modification	C:\Program Files\InstallStart.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jstack.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jre7\bin\javaws.exe	fvkcA.exe
File opened for modification	C:\Program Files\Microsoft Games\Chess\Chess.exe	fvkcA.exe
File opened for modification	C:\Program Files\Microsoft Games\Multiplayer\Backgammon\bckgzm.exe	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\GRAPH.EXE	fvkcA.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice.exe	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe	fvkcA.exe
File opened for modification	C:\Program Files\7-Zip\7zFM.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\policytool.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\klist.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jre7\bin\unpack200.exe	fvkcA.exe
File opened for modification	C:\Program Files\Microsoft Games\Purble Place\PurblePlace.exe	fvkcA.exe
File opened for modification	C:\Program Files\Mozilla Firefox\crashreporter.exe	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OUTLOOK.EXE	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\CLVIEW.EXE	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\VPREVIEW.EXE	fvkcA.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe	fvkcA.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome_proxy.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\java.exe	fvkcA.exe
File opened for modification	C:\Program Files\Microsoft Games\Multiplayer\Checkers\chkrzm.exe	fvkcA.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Google\Update\DisabledGoogleUpdate.exe	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\WinMail.exe	fvkcA.exe
File opened for modification	C:\Program Files\Windows Mail\wab.exe	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\wabmig.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javafxpackager.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jhat.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jps.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jstatd.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\wsgen.exe	fvkcA.exe
File opened for modification	C:\Program Files\Mozilla Firefox\default-browser-agent.exe	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Wordconv.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jvisualvm.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jre7\bin\klist.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jre7\bin\rmid.exe	fvkcA.exe
File opened for modification	C:\Program Files\Mozilla Firefox\uninstall\helper.exe	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\ONELEV.EXE	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\GROOVEMN.EXE	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jsadebugd.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\javaws.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\ssvagent.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\lib\nbexec64.exe	fvkcA.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe	fvkcA.exe
File opened for modification	C:\Program Files\Windows Photo Viewer\ImagingDevices.exe	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\WORDICON.EXE	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javaws.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\rmic.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jre7\bin\pack200.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jre7\bin\ssvagent.exe	fvkcA.exe
File opened for modification	C:\Program Files\Microsoft Games\FreeCell\FreeCell.exe	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AdobeCollabSync.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javac.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\java.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jre7\bin\keytool.exe	fvkcA.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	fvkcA.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\SELFCERT.EXE	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\appletviewer.exe	fvkcA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\ktab.exe	fvkcA.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2772	2600	WerFault.exe	29

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	208b76092a7d39987ceeb66ec607b3096a9bce88984e004c0958f15f50c1a761.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fvkcA.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2600 wrote to memory of 1816	2600	208b76092a7d39987ceeb66ec607b3096a9bce88984e004c0958f15f50c1a761.exe	30
PID 2600 wrote to memory of 1816	2600	208b76092a7d39987ceeb66ec607b3096a9bce88984e004c0958f15f50c1a761.exe	30
PID 2600 wrote to memory of 1816	2600	208b76092a7d39987ceeb66ec607b3096a9bce88984e004c0958f15f50c1a761.exe	30
PID 2600 wrote to memory of 1816	2600	208b76092a7d39987ceeb66ec607b3096a9bce88984e004c0958f15f50c1a761.exe	30
PID 2600 wrote to memory of 2772	2600	208b76092a7d39987ceeb66ec607b3096a9bce88984e004c0958f15f50c1a761.exe	31
PID 2600 wrote to memory of 2772	2600	208b76092a7d39987ceeb66ec607b3096a9bce88984e004c0958f15f50c1a761.exe	31
PID 2600 wrote to memory of 2772	2600	208b76092a7d39987ceeb66ec607b3096a9bce88984e004c0958f15f50c1a761.exe	31
PID 2600 wrote to memory of 2772	2600	208b76092a7d39987ceeb66ec607b3096a9bce88984e004c0958f15f50c1a761.exe	31
PID 1816 wrote to memory of 1200	1816	fvkcA.exe	35
PID 1816 wrote to memory of 1200	1816	fvkcA.exe	35
PID 1816 wrote to memory of 1200	1816	fvkcA.exe	35
PID 1816 wrote to memory of 1200	1816	fvkcA.exe	35

C:\Users\Admin\AppData\Local\Temp\208b76092a7d39987ceeb66ec607b3096a9bce88984e004c0958f15f50c1a761.exe
"C:\Users\Admin\AppData\Local\Temp\208b76092a7d39987ceeb66ec607b3096a9bce88984e004c0958f15f50c1a761.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2600
- C:\Users\Admin\AppData\Local\Temp\fvkcA.exe
  C:\Users\Admin\AppData\Local\Temp\fvkcA.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1816
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\0e3430a5.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1200
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2600 -s 248
  2⤵
  - Program crash
  PID:2772

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\0e3430a5.bat

Filesize
185B

MD5
aec6cd91006b77e0263b12327453e274

SHA1
84ac98fb58247bb3d556da85007baf5681d824b0

SHA256
64b60df5b82a158e648181c9bd04601ec60caa0baa6a67eaa901d3d84c911ef6

SHA512
70c0c6d2533b859cae24121c6b3e9a44ca9687b933c0fb7abdcf8858e7508eea1a0f074d6245b74465d49caef95ad5cd45b900bf3c61ae00e1cf7e3638056934

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/1816-11-0x0000000000FD0000-0x0000000000FD9000-memory.dmp

Filesize
36KB

Download
memory/1816-16-0x0000000000FD0000-0x0000000000FD9000-memory.dmp

Filesize
36KB

Download
memory/2600-1-0x0000000000400000-0x0000000000586000-memory.dmp

Filesize
1.5MB

Download
memory/2600-9-0x00000000002C0000-0x00000000002C9000-memory.dmp

Filesize
36KB

Download
memory/2600-8-0x00000000002C0000-0x00000000002C9000-memory.dmp

Filesize
36KB

Download
memory/2600-15-0x0000000000400000-0x0000000000586000-memory.dmp

Filesize
1.5MB

Download