smokeloader | 9c6403ca45a75ab2d917b4014b0227534cc86638a059895ad5cc4889096dc840

General

Target

9c6403ca45a75ab2d917b4014b0227534cc86638a059895ad5cc4889096dc840.exe
Size

248KB
MD5

b77043673df8b86cdb3f3049fa4b5cdf
SHA1

998b7f59bf0acd24f920c5608422b59a1f610d80
SHA256

9c6403ca45a75ab2d917b4014b0227534cc86638a059895ad5cc4889096dc840
SHA512

63ab9f4b5108571d094189a6536be0e218e9296c60285d5d2e21f8f799e70421ec44988e94d73b6e7cf2b8020d8e39cd8b3b49c3d599ec8eca4d65280b81a712
SSDEEP

3072:/rwPX0z03zXLpLwAafrPH87QBLAKHIrzJ1fiXMOS5i8nF53JBLGCH:u9XLvafr/87QBEKHazrfi/4ba

Score

10^/10

smokeloader pub1 aspackv2 backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader

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\zyNGhf.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:

zyNGhf.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000\Control Panel\International\Geo\Nation zyNGhf.exe
Executes dropped EXE 1 IoCs

Processes:

zyNGhf.exe

pid process

2392 zyNGhf.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000\Control Panel\International\Geo\Nation	zyNGhf.exe

pid	process
2392	zyNGhf.exe

Drops file in Program Files directory 64 IoCs

Processes:

zyNGhf.exe

description	ioc	process
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.106\notification_helper.exe	zyNGhf.exe
File opened for modification	C:\Program Files\7-Zip\Uninstall.exe	zyNGhf.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\createdump.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jps.exe	zyNGhf.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroBroker.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Mozilla Firefox\pingsender.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jmap.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javaws.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\pack200.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoasb.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOICONS.EXE	zyNGhf.exe
File opened for modification	C:\Program Files\Windows Mail\wab.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Windows Mail\wabmig.exe	zyNGhf.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.22753.0_x64__8wekyb3d8bbwe\codecpacks.webp.exe	zyNGhf.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MixedReality.Portal_2000.19081.1301.0_x64__8wekyb3d8bbwe\MixedRealityPortal.Brokered.exe	zyNGhf.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsStore_11910.1002.5.0_x64__8wekyb3d8bbwe\WinStore.App.exe	zyNGhf.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroTextExtractor.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\ktab.exe	zyNGhf.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppInstallerPythonRedirector.exe	zyNGhf.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\YourPhone.exe	zyNGhf.exe
File opened for modification	C:\Program Files\7-Zip\7z.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Integration\Addons\OneDriveSetup.exe	zyNGhf.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc-cache-gen.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Windows Security\BrowserCore\BrowserCore.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\keytool.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\pack200.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jrunscript.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\rmid.exe	zyNGhf.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxSpeechToTextOverlay_1.17.29001.0_x64__8wekyb3d8bbwe\SpeechToTextOverlay64-Retail.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\kinit.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DWTRIG20.EXE	zyNGhf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\EQUATION\eqnedt32.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\klist.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\tnameserv.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javacpl.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\rmid.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\rmiregistry.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ORGCHART.EXE	zyNGhf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\java-rmi.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javadoc.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\serialver.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Integration\Integrator.exe	zyNGhf.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	zyNGhf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jdeps.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\tnameserv.exe	zyNGhf.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_2.34.28001.0_x64__8wekyb3d8bbwe\GameBar.exe	zyNGhf.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe	zyNGhf.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\createdump.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jp2launcher.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOXMLED.EXE	zyNGhf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\OLicenseHeartbeat.exe	zyNGhf.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroLayoutRecognizer\AcroLayoutRecognizer.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOSYNC.EXE	zyNGhf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\Wordconv.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Source Engine\OSE.EXE	zyNGhf.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_x64__8wekyb3d8bbwe\Time.exe	zyNGhf.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateOnDemand.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javac.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javaw.exe	zyNGhf.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxOutlook.exe	zyNGhf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\rmiregistry.exe	zyNGhf.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\WhatsNew.Store.exe	zyNGhf.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

2836 3620 WerFault.exe 9c6403ca45a75ab2d917b4014b0227534cc86638a059895ad5cc4889096dc840.exe

pid	pid_target	process	target process
2836	3620	WerFault.exe	9c6403ca45a75ab2d917b4014b0227534cc86638a059895ad5cc4889096dc840.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:

9c6403ca45a75ab2d917b4014b0227534cc86638a059895ad5cc4889096dc840.exezyNGhf.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9c6403ca45a75ab2d917b4014b0227534cc86638a059895ad5cc4889096dc840.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zyNGhf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

9c6403ca45a75ab2d917b4014b0227534cc86638a059895ad5cc4889096dc840.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	9c6403ca45a75ab2d917b4014b0227534cc86638a059895ad5cc4889096dc840.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	9c6403ca45a75ab2d917b4014b0227534cc86638a059895ad5cc4889096dc840.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	9c6403ca45a75ab2d917b4014b0227534cc86638a059895ad5cc4889096dc840.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

9c6403ca45a75ab2d917b4014b0227534cc86638a059895ad5cc4889096dc840.exezyNGhf.exe

description	pid	process	target process
PID 3620 wrote to memory of 2392	3620	9c6403ca45a75ab2d917b4014b0227534cc86638a059895ad5cc4889096dc840.exe	zyNGhf.exe
PID 3620 wrote to memory of 2392	3620	9c6403ca45a75ab2d917b4014b0227534cc86638a059895ad5cc4889096dc840.exe	zyNGhf.exe
PID 3620 wrote to memory of 2392	3620	9c6403ca45a75ab2d917b4014b0227534cc86638a059895ad5cc4889096dc840.exe	zyNGhf.exe
PID 2392 wrote to memory of 4840	2392	zyNGhf.exe	cmd.exe
PID 2392 wrote to memory of 4840	2392	zyNGhf.exe	cmd.exe
PID 2392 wrote to memory of 4840	2392	zyNGhf.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\9c6403ca45a75ab2d917b4014b0227534cc86638a059895ad5cc4889096dc840.exe
"C:\Users\Admin\AppData\Local\Temp\9c6403ca45a75ab2d917b4014b0227534cc86638a059895ad5cc4889096dc840.exe"
1⤵
- System Location Discovery: System Language Discovery
- Checks SCSI registry key(s)
- Suspicious use of WriteProcessMemory
PID:3620

C:\Users\Admin\AppData\Local\Temp\zyNGhf.exe
C:\Users\Admin\AppData\Local\Temp\zyNGhf.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:2392

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\603d3e41.bat" "
3⤵
- System Location Discovery: System Language Discovery
PID:4840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3620 -s 472
2⤵
- Program crash
PID:2836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3620 -ip 3620
1⤵
PID:2056

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

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\AF6HG05X\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\603d3e41.bat

Filesize
187B

MD5
c471e1ab74380f32a5e1a55c5244cb03

SHA1
f5267afcbf89624ec44b8b39aa4c75ec5cd4298c

SHA256
81409bbe59db6273ef59bd54a29776c31ca4592e6ca5262d506b3f100166f51a

SHA512
8766919a38b41154c7c33fbb7d31bb1e58649cd2bc567e4bf224de8c7a471edce928ff732576776f8d8283edba27beaea42b4fa530f3f4550de8d8272d05f458

Download Submit
C:\Users\Admin\AppData\Local\Temp\70683827.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

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

Filesize
15KB

MD5
f7d21de5c4e81341eccd280c11ddcc9a

SHA1
d4e9ef10d7685d491583c6fa93ae5d9105d815bd

SHA256
4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794

SHA512
e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3

Download Submit
memory/2392-4-0x0000000000FB0000-0x0000000000FB9000-memory.dmp

Filesize
36KB

Download
memory/2392-52-0x0000000000FB0000-0x0000000000FB9000-memory.dmp

Filesize
36KB

Download
memory/3620-0-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3620-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3620-9-0x00000000005F0000-0x00000000005FB000-memory.dmp

Filesize
44KB

Download
memory/3620-8-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/3620-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads