bdaejec | 4b99249035f5fcd5f64e70bf7e09cd5a622400ea734b5d9823018d9a27b4a236

General

Target

4b99249035f5fcd5f64e70bf7e09cd5a622400ea734b5d9823018d9a27b4a236.exe
Size

19KB
MD5

b3ce4f6af8b4780ac038584f6eb4e427
SHA1

6449971b1f22750122cfe2cc532cdcf9b5277714
SHA256

4b99249035f5fcd5f64e70bf7e09cd5a622400ea734b5d9823018d9a27b4a236
SHA512

fbc35ea6360c74e1c2da729ce13524981e71169e91f9c157f197723968ffd3733f3cabd05c21453229584df9351e46cf525f2c4518e894ce664d5c7f3daf3bd2
SSDEEP

384:1FwS0XZQaD7U8iu4YsAa7ZA0UvH2lsRv21yW7GbAxur6+Y9PffPz:hUQGPL4vzZq2o9W7GsxBbPr

Score

10^/10

bdaejec aspackv2 backdoor discovery

Malware Config

Extracted

Family

bdaejec

C2

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
behavioral2/memory/312-25-0x0000000000DF0000-0x0000000000DF9000-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
C:\Users\Admin\AppData\Local\Temp\vCGUFyn.exe	aspack_v212_v242

Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

vCGUFyn.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation vCGUFyn.exe
Executes dropped EXE 1 IoCs

Processes:

vCGUFyn.exe

pid process

312 vCGUFyn.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	vCGUFyn.exe

pid	process
312	vCGUFyn.exe

Drops file in Program Files directory 64 IoCs

Processes:

vCGUFyn.exe

description	ioc	process
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxAccounts.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxIdentityProvider_12.50.6001.0_x64__8wekyb3d8bbwe\XboxIdp.exe	vCGUFyn.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\arh.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmic.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\schemagen.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\EXCEL.EXE	vCGUFyn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\officeappguardwin32.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jarsigner.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\tnameserv.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\GRAPH.EXE	vCGUFyn.exe
File opened for modification	C:\Program Files\Mozilla Firefox\default-browser-agent.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\LocalBridge.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\7-Zip\7z.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\java-rmi.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\rmid.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOUC.EXE	vCGUFyn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SDXHelperBgt.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.ShowHelp.exe	vCGUFyn.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Source Engine\OSE.EXE	vCGUFyn.exe
File opened for modification	C:\Program Files\Mozilla Firefox\private_browsing.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_3.6.73.0_x64__8wekyb3d8bbwe\Microsoft.Notes.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxCalendarAppImm.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstatd.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Mozilla Firefox\crashreporter.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\fmui\fmui.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Mozilla Firefox\pingsender.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Windows Photo Viewer\ImagingDevices.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.VP9VideoExtensions_1.0.22681.0_x64__8wekyb3d8bbwe\codecpacks.VP9.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Installer\setup.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\pack200.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\java-rmi.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection64.exe	vCGUFyn.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrServicesUpdater.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ssvagent.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MixedReality.Portal_2000.19081.1301.0_x64__8wekyb3d8bbwe\MixedRealityPortal.Brokered.exe	vCGUFyn.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\LogTransport2.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\7-Zip\7zFM.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javaws.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\native2ascii.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javaws.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javah.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\kinit.exe	vCGUFyn.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleCrashHandler.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\idlj.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\wsimport.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jabswitch.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\WhatsNew.Store.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Windows Security\BrowserCore\BrowserCore.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\xjc.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ssvagent.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOXMLED.EXE	vCGUFyn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\SQLDumper.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome_proxy.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\rmiregistry.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_x64__8wekyb3d8bbwe\Microsoft.Msn.Weather.exe	vCGUFyn.exe
File opened for modification	C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\kinit.exe	vCGUFyn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\CLVIEW.EXE	vCGUFyn.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\misc.exe	vCGUFyn.exe

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

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2716 3784 WerFault.exe 4b99249035f5fcd5f64e70bf7e09cd5a622400ea734b5d9823018d9a27b4a236.exe

pid	pid_target	process	target process
2716	3784	WerFault.exe	4b99249035f5fcd5f64e70bf7e09cd5a622400ea734b5d9823018d9a27b4a236.exe

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:

4b99249035f5fcd5f64e70bf7e09cd5a622400ea734b5d9823018d9a27b4a236.exevCGUFyn.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4b99249035f5fcd5f64e70bf7e09cd5a622400ea734b5d9823018d9a27b4a236.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vCGUFyn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

4b99249035f5fcd5f64e70bf7e09cd5a622400ea734b5d9823018d9a27b4a236.exevCGUFyn.exe

description	pid	process	target process
PID 3784 wrote to memory of 312	3784	4b99249035f5fcd5f64e70bf7e09cd5a622400ea734b5d9823018d9a27b4a236.exe	vCGUFyn.exe
PID 3784 wrote to memory of 312	3784	4b99249035f5fcd5f64e70bf7e09cd5a622400ea734b5d9823018d9a27b4a236.exe	vCGUFyn.exe
PID 3784 wrote to memory of 312	3784	4b99249035f5fcd5f64e70bf7e09cd5a622400ea734b5d9823018d9a27b4a236.exe	vCGUFyn.exe
PID 312 wrote to memory of 4192	312	vCGUFyn.exe	cmd.exe
PID 312 wrote to memory of 4192	312	vCGUFyn.exe	cmd.exe
PID 312 wrote to memory of 4192	312	vCGUFyn.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\4b99249035f5fcd5f64e70bf7e09cd5a622400ea734b5d9823018d9a27b4a236.exe
"C:\Users\Admin\AppData\Local\Temp\4b99249035f5fcd5f64e70bf7e09cd5a622400ea734b5d9823018d9a27b4a236.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3784
- C:\Users\Admin\AppData\Local\Temp\vCGUFyn.exe
  C:\Users\Admin\AppData\Local\Temp\vCGUFyn.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:312
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\7ee57bad.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4192
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3784 -s 688
  2⤵
  - Program crash
  PID:2716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 3784 -ip 3784
1⤵
PID:5076

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\8R55UT9S\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\740704AD.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ee57bad.bat

Filesize
189B

MD5
1d61a4c2a201d6522132bb5c59040f3b

SHA1
c31e35edbc4feb02a71ac562fbb16969d8a4a347

SHA256
d061f4466c07310a87eea626c1a8f5b08ba7f703ac7372113817f1cff53cb73a

SHA512
e48668428c15ba8d9d06a67b1150caa30c8666b283e180541aa25576ec6d166b3626ce7511ab6271958b2a6592d1cc28ce1662bea81391730d25a0ee96c230c9

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/312-4-0x0000000000DF0000-0x0000000000DF9000-memory.dmp

Filesize
36KB

Download
memory/312-25-0x0000000000DF0000-0x0000000000DF9000-memory.dmp

Filesize
36KB

Download
memory/3784-0-0x0000000001000000-0x0000000001008000-memory.dmp

Filesize
32KB

Download
memory/3784-21-0x0000000001000000-0x0000000001008000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads