bdaejec | 8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c

General

Target

8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
Size

32KB
MD5

803008f5f087c184df1a3569fbff0321
SHA1

e1a13695ad6a6dca16f89e1951ac6e2fb44e19d7
SHA256

8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c
SHA512

aaf92024070f52ae9221a7127774411f426ea52ba3447643788a5132e6857fe05d29c57fe61b52662a90bc36ddfa84f6144905d5fc9e72e6ffc728b3ae89f1aa
SSDEEP

768:bQGPL4vzZq2o9W7GsxBbPrnzQGPL4vzZq2o9W7GsxBbPr:cGCq2iW7zjkGCq2iW7z

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/3504-83-0x0000000000A60000-0x0000000000A69000-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\ZLwljT.exe	aspack_v212_v242

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

ZLwljT.exe8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	ZLwljT.exe
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe

Executes dropped EXE 1 IoCs

Processes:

ZLwljT.exe

pid process

3504 ZLwljT.exe

pid	process
3504	ZLwljT.exe

Drops file in Program Files directory 64 IoCs

Processes:

ZLwljT.exe8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe

description	ioc	process
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\serialver.exe	ZLwljT.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\java-rmi.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javacpl.exe	ZLwljT.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\keytool.exe	ZLwljT.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\onenoteim.exe	ZLwljT.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_2.34.28001.0_x64__8wekyb3d8bbwe\GameBar.exe	ZLwljT.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe	ZLwljT.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\tnameserv.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\rmiregistry.exe	ZLwljT.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	ZLwljT.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\java-rmi.exe	ZLwljT.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jjs.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\kinit.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\Mozilla Firefox\minidump-analyzer.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\XboxApp.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\64BitMAPIBroker.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\java.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javafxpackager.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javapackager.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	ZLwljT.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PDFREFLOW.EXE	ZLwljT.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\fmui\fmui.exe	ZLwljT.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeApp.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.19071.19011.0_x64__8wekyb3d8bbwe\Video.UI.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\native2ascii.exe	ZLwljT.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\unpack200.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SETLANG.EXE	ZLwljT.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\OLicenseHeartbeat.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\SPREADSHEETCOMPARE.EXE	ZLwljT.exe
File opened for modification	C:\Program Files\dotnet\dotnet.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jar.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome.exe	ZLwljT.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroLayoutRecognizer\AcroLayoutRecognizer.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\createdump.exe	ZLwljT.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSQRY32.EXE	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe	ZLwljT.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\kinit.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PerfBoost.exe	ZLwljT.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOXMLED.EXE	ZLwljT.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.People_10.1902.633.0_x64__8wekyb3d8bbwe\PeopleApp.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javaws.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\CLVIEW.EXE	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\Windows Mail\wab.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jdb.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ssvagent.exe	ZLwljT.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\tnameserv.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\IEContentService.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxIdentityProvider_12.50.6001.0_x64__8wekyb3d8bbwe\XboxIdp.exe	ZLwljT.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\misc.exe	ZLwljT.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppInstaller.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\Maps.exe	ZLwljT.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jjs.exe	ZLwljT.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\policytool.exe	ZLwljT.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.19071.19011.0_x64__8wekyb3d8bbwe\Music.UI.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jabswitch.exe	ZLwljT.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\policytool.exe	ZLwljT.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SDXHelper.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\Microsoft.Photos.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppInstallerElevatedAppServiceClient.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.StorePurchaseApp_11811.1001.18.0_x64__8wekyb3d8bbwe\StoreExperienceHost.exe	ZLwljT.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jarsigner.exe	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.NetFX40.exe	ZLwljT.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 4 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:

8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exeZLwljT.execmd.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ZLwljT.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exeZLwljT.exe

description	pid	process	target process
PID 4896 wrote to memory of 3504	4896	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe	ZLwljT.exe
PID 4896 wrote to memory of 3504	4896	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe	ZLwljT.exe
PID 4896 wrote to memory of 3504	4896	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe	ZLwljT.exe
PID 3504 wrote to memory of 4908	3504	ZLwljT.exe	cmd.exe
PID 3504 wrote to memory of 4908	3504	ZLwljT.exe	cmd.exe
PID 3504 wrote to memory of 4908	3504	ZLwljT.exe	cmd.exe
PID 4896 wrote to memory of 4204	4896	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe	cmd.exe
PID 4896 wrote to memory of 4204	4896	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe	cmd.exe
PID 4896 wrote to memory of 4204	4896	8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe
"C:\Users\Admin\AppData\Local\Temp\8b20cfe86f2ef778461bb0ef34add6703c4bef84eb40f1547585ff515365900c.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4896

C:\Users\Admin\AppData\Local\Temp\ZLwljT.exe
C:\Users\Admin\AppData\Local\Temp\ZLwljT.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:3504

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\43fe62cb.bat" "
3⤵
- System Location Discovery: System Language Discovery
PID:4908

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\43fe62cb.bat" "
2⤵
- System Location Discovery: System Language Discovery
PID:4204

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:\Program Files\7-Zip\Uninstall.exe

Filesize
31KB

MD5
cdf0a07e2bda15f8648319a62bb3ed55

SHA1
34a78b1bc50f10fff94a76c20730743c74a4f937

SHA256
7dee460d6a3f63034dd32b07347b999db17b5fc49714b8f2c2999193f6281d1c

SHA512
c3cab5ee2e89f6775b9c54eae82b526275a2316a9f44d25c80c8507c1806765c3f7182c8ff33e5da23f1c4cbfc0b225a6640cb5319428092b39ce85b8100d7d7

Download Submit
C:\Users\Admin\AppData\Local\Temp\3D235757.exe

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\43fe62cb.bat

Filesize
187B

MD5
16fa54088ceb3b1a1f8b1b6608079cda

SHA1
905bab299bbc9f1ac3bb3a5d7395bbb945bb2a8b

SHA256
e96f911afda9d68475846cc001b3622a8f2902bfae34f4bcbf88b4f1ba50ae2b

SHA512
49d6f615cda89b9be2f47b9ca99e3135b36a1cce759958c4a00561adbd90065c4db1881f6c260976a63d2a67f4a679a76a93c7cfd1414517e0d67f50383fde9a

Download Submit
C:\Users\Admin\AppData\Local\Temp\4B464703.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/3504-4-0x0000000000A60000-0x0000000000A69000-memory.dmp

Filesize
36KB

Download
memory/3504-83-0x0000000000A60000-0x0000000000A69000-memory.dmp

Filesize
36KB

Download
memory/4896-0-0x0000000000F90000-0x0000000000F9E000-memory.dmp

Filesize
56KB

Download
memory/4896-85-0x0000000000F90000-0x0000000000F9E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads