bdaejec | 167c4538f23a498e6521aed45d4135c75dd33c92e04df20ce54d6f99c489f03c

Analysis

max time kernel
105s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
21/03/2025, 01:21

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General

Target

2025-03-21_b11e44d25b66635ce1652c10f2507983_floxif_smoke-loader.exe
Size

135KB
MD5

b11e44d25b66635ce1652c10f2507983
SHA1

2018d2b921b2e9caebe49b7542ea568ff4a94f2a
SHA256

167c4538f23a498e6521aed45d4135c75dd33c92e04df20ce54d6f99c489f03c
SHA512

dd98fb6d5514a7266caa69a4b900f29fd0682c909384b53a5d68ca19e22a9852ee9dd63707cc9832a776e9bace3749952ca3d13182a0b6814ffa39d6bc7141b1
SSDEEP

3072:w7qXriW5/KNbwJFNvgDUGOh2lQBV+UdE+rECWp7hKvEPya:w+rvRK79O1BV+UdvrEFp7hKsPya

Score

10^/10

bdaejec floxif aspackv2 backdoor discovery trojan 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
behavioral2/memory/2400-44-0x0000000000670000-0x0000000000679000-memory.dmp	family_bdaejec_backdoor

Floxif family
floxif
Floxif, Floodfix
Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.
backdoor trojan floxif

Detected Nirsoft tools 1 IoCs

Free utilities often used by attackers which can steal passwords, product keys, etc.

resource	yara_rule
behavioral2/memory/2920-46-0x0000000000400000-0x0000000000420000-memory.dmp	Nirsoft

Detects Floxif payload 1 IoCs

backdoor

resource	yara_rule
behavioral2/files/0x000600000002334a-2.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000600000002334a-2.dat	acprotect

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral2/files/0x00080000000241fa-9.dat	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1062200478-553497403-3857448183-1000\Control Panel\International\Geo\Nation	mpPkgy.exe

Executes dropped EXE 1 IoCs

pid	Process
2400	mpPkgy.exe

Loads dropped DLL 1 IoCs

pid	Process
2920	2025-03-21_b11e44d25b66635ce1652c10f2507983_floxif_smoke-loader.exe

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\e:	2025-03-21_b11e44d25b66635ce1652c10f2507983_floxif_smoke-loader.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2920-0-0x0000000000400000-0x0000000000420000-memory.dmp	upx
behavioral2/files/0x000600000002334a-2.dat	upx
behavioral2/memory/2920-5-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/2920-46-0x0000000000400000-0x0000000000420000-memory.dmp	upx
behavioral2/memory/2920-50-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/2920-53-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ScreenSketch_10.1907.2471.0_x64__8wekyb3d8bbwe\ScreenSketch.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\orbd.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Microsoft Office 15\ClientX64\OfficeClickToRun.exe	mpPkgy.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Browser\WCChromeExtn\WCChromeNativeMessagingHost.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstatd.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\keytool.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\servertool.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Integration\Integrator.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\misc.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\AppSharingHookController.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\MSOHTMED.EXE	mpPkgy.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\createdump.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DWTRIG20.EXE	mpPkgy.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\DATABASECOMPARE.EXE	mpPkgy.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc-cache-gen.exe	mpPkgy.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeBackgroundHost.exe	mpPkgy.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Wallet_2.4.18324.0_x64__8wekyb3d8bbwe\Microsoft.Wallet.exe	mpPkgy.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_x64__8wekyb3d8bbwe\Time.exe	mpPkgy.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCamera_2018.826.98.0_x64__8wekyb3d8bbwe\WindowsCamera.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\133.0.6943.60\os_update_handler.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection.exe	mpPkgy.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\onenoteshare.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jabswitch.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jjs.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\orbd.exe	mpPkgy.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.22753.0_x64__8wekyb3d8bbwe\codecpacks.webp.exe	mpPkgy.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javapackager.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jhat.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\pack200.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoasb.exe	mpPkgy.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\createdump.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\133.0.6943.60\Installer\setup.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\rmiregistry.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\kinit.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ktab.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoev.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSQRY32.EXE	mpPkgy.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jabswitch.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javaw.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ktab.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PerfBoost.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Mozilla Firefox\default-browser-agent.exe	mpPkgy.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxCalendarAppImm.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\servertool.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoia.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ORGCHART.EXE	mpPkgy.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe	mpPkgy.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	mpPkgy.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppInstallerElevatedAppServiceClient.exe	mpPkgy.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxIdentityProvider_12.50.6001.0_x64__8wekyb3d8bbwe\XboxIdp.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\klist.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\schemagen.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE	mpPkgy.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.HEIFImageExtension_1.0.22742.0_x64__8wekyb3d8bbwe\codecpacks.heif.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOUC.EXE	mpPkgy.exe
File opened for modification	C:\Program Files\Mozilla Firefox\crashreporter.exe	mpPkgy.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\Maps.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ssvagent.exe	mpPkgy.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	mpPkgy.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebMediaExtensions_1.0.20875.0_x64__8wekyb3d8bbwe\Microsoft.WebMediaExtensions.exe	mpPkgy.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Xbox.TCUI_1.23.28002.0_x64__8wekyb3d8bbwe\TCUI-App.exe	mpPkgy.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\CLVIEW.EXE	mpPkgy.exe
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe	mpPkgy.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-03-21_b11e44d25b66635ce1652c10f2507983_floxif_smoke-loader.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mpPkgy.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2920	2025-03-21_b11e44d25b66635ce1652c10f2507983_floxif_smoke-loader.exe
2920	2025-03-21_b11e44d25b66635ce1652c10f2507983_floxif_smoke-loader.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2920	2025-03-21_b11e44d25b66635ce1652c10f2507983_floxif_smoke-loader.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2920 wrote to memory of 2400	2920	2025-03-21_b11e44d25b66635ce1652c10f2507983_floxif_smoke-loader.exe	86
PID 2920 wrote to memory of 2400	2920	2025-03-21_b11e44d25b66635ce1652c10f2507983_floxif_smoke-loader.exe	86
PID 2920 wrote to memory of 2400	2920	2025-03-21_b11e44d25b66635ce1652c10f2507983_floxif_smoke-loader.exe	86
PID 2400 wrote to memory of 4516	2400	mpPkgy.exe	90
PID 2400 wrote to memory of 4516	2400	mpPkgy.exe	90
PID 2400 wrote to memory of 4516	2400	mpPkgy.exe	90

C:\Users\Admin\AppData\Local\Temp\2025-03-21_b11e44d25b66635ce1652c10f2507983_floxif_smoke-loader.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-21_b11e44d25b66635ce1652c10f2507983_floxif_smoke-loader.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2920
- C:\Users\Admin\AppData\Local\Temp\mpPkgy.exe
  C:\Users\Admin\AppData\Local\Temp\mpPkgy.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:2400
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\472b12b0.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4516

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\463FIIFI\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\165F75C8.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

Download Submit
C:\Users\Admin\AppData\Local\Temp\472b12b0.bat

Filesize
187B

MD5
80d19af1ed9486a6890f8c8450a63001

SHA1
740cd87151ed479f9b95f9c36604b5f584f5bcfb

SHA256
dea7f5d0a80571a86941865b0d7a541e2b73ab928b6db95f89093dbf79649e7b

SHA512
bf4bed721afee16982f191a9db560e4f4b80cccaf494c1e55b3aca730dd0455b119f5797b9a369b48eb3a1b6fbd9d3e61597d3e5e578ee8cf3a00088da50869e

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/2400-44-0x0000000000670000-0x0000000000679000-memory.dmp

Filesize
36KB

Download
memory/2400-10-0x0000000000670000-0x0000000000679000-memory.dmp

Filesize
36KB

Download
memory/2920-39-0x00000000771F5000-0x00000000771F6000-memory.dmp

Filesize
4KB

Download
memory/2920-0-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2920-5-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2920-46-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2920-47-0x00000000771E0000-0x0000000077243000-memory.dmp

Filesize
396KB

Download
memory/2920-50-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2920-51-0x00000000771E0000-0x0000000077243000-memory.dmp

Filesize
396KB

Download
memory/2920-53-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2920-54-0x00000000771E0000-0x0000000077243000-memory.dmp

Filesize
396KB

Download