systembc | 11c509649c391209ce09bc178ebffcfc7cbfcf038ce699aebfd1303191c136aa

Analysis

max time kernel
145s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
25-07-2024 15:45

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General

Target

11c509649c391209ce09bc178ebffcfc7cbfcf038ce699aebfd1303191c136aa.exe
Size

248KB
MD5

ecd0928e717ce95b2918b50460813db7
SHA1

bdb4d8572ef6f4a48fa0b5d9d6988bd6ac73db30
SHA256

11c509649c391209ce09bc178ebffcfc7cbfcf038ce699aebfd1303191c136aa
SHA512

ae1d641d2fcd77c8112928ccf564a028244f5763d8f93a093392ce561bac959d667325ac2d3a72abd2c3e3d358870bef1a930d44c611651c6356c0b6830d60e8
SSDEEP

3072:cLiOmI5XFUfxR14JisxsyCz8Q5bPdO4OyGCH:i1mmUeJZjeFe

Score

10^/10

systembc aspackv2 discovery trojan

Malware Config

Extracted

Family

systembc

31.44.185.6:4001

31.44.185.11:4001

Signatures

SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
trojan systembc

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral2/files/0x000900000002343e-4.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-1-5-21-2990742725-2267136959-192470804-1000\Control Panel\International\Geo\Nation	bGfoJD.exe

Executes dropped EXE 3 IoCs

pid	Process
2628	bGfoJD.exe
2680	crwta.exe
5084	bGfoJD.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstat.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\klist.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\DATABASECOMPARE.EXE	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroBroker.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\wsimport.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\pack200.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\CLVIEW.EXE	bGfoJD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOUC.EXE	bGfoJD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\SPREADSHEETCOMPARE.EXE	bGfoJD.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\Cortana.exe	bGfoJD.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_3.6.73.0_x64__8wekyb3d8bbwe\Microsoft.Notes.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmiregistry.exe	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Download\{8A69D345-D564-463C-AFF1-A69D9E530F96}\123.0.6312.106\chrome_installer.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javaw.exe	bGfoJD.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	bGfoJD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\WINWORD.EXE	bGfoJD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOXMLED.EXE	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javadoc.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jmap.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate32.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOSYNC.EXE	bGfoJD.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\native2ascii.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\rmid.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\MSOHTMED.EXE	bGfoJD.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeBridge\SkypeBridge.exe	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\64BitMAPIBroker.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\orbd.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoia.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSQRY32.EXE	bGfoJD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\officeappguardwin32.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\XLICONS.EXE	bGfoJD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\FLTLDR.EXE	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\Uninstall.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\policytool.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\WORDICON.EXE	bGfoJD.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Windows Mail\wab.exe	bGfoJD.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\WhatsNew.Store.exe	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleCrashHandler.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javafxpackager.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jinfo.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jsadebugd.exe	bGfoJD.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxCalendarAppImm.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ktab.exe	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Eula.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.106\notification_helper.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\excelcnv.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Source Engine\OSE.EXE	bGfoJD.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Mozilla Firefox\uninstall\helper.exe	bGfoJD.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_x64__8wekyb3d8bbwe\Time.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\kinit.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	bGfoJD.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\PaintStudio.View.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ssvagent.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate64.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\OLicenseHeartbeat.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Mozilla Firefox\crashreporter.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Mozilla Firefox\plugin-container.exe	bGfoJD.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\View3D.ResourceResolver.exe	bGfoJD.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCamera_2018.826.98.0_x64__8wekyb3d8bbwe\WindowsCamera.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javah.exe	bGfoJD.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\crwta.job	11c509649c391209ce09bc178ebffcfc7cbfcf038ce699aebfd1303191c136aa.exe
File opened for modification	C:\Windows\Tasks\crwta.job	11c509649c391209ce09bc178ebffcfc7cbfcf038ce699aebfd1303191c136aa.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
528	2636	WerFault.exe	83

System Location Discovery: System Language Discovery 1 TTPs 6 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	bGfoJD.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	11c509649c391209ce09bc178ebffcfc7cbfcf038ce699aebfd1303191c136aa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bGfoJD.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	crwta.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	bGfoJD.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	bGfoJD.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	bGfoJD.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	bGfoJD.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	bGfoJD.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2636	11c509649c391209ce09bc178ebffcfc7cbfcf038ce699aebfd1303191c136aa.exe
2636	11c509649c391209ce09bc178ebffcfc7cbfcf038ce699aebfd1303191c136aa.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2636 wrote to memory of 2628	2636	11c509649c391209ce09bc178ebffcfc7cbfcf038ce699aebfd1303191c136aa.exe	84
PID 2636 wrote to memory of 2628	2636	11c509649c391209ce09bc178ebffcfc7cbfcf038ce699aebfd1303191c136aa.exe	84
PID 2636 wrote to memory of 2628	2636	11c509649c391209ce09bc178ebffcfc7cbfcf038ce699aebfd1303191c136aa.exe	84
PID 2628 wrote to memory of 3868	2628	bGfoJD.exe	85
PID 2628 wrote to memory of 3868	2628	bGfoJD.exe	85
PID 2628 wrote to memory of 3868	2628	bGfoJD.exe	85
PID 2680 wrote to memory of 5084	2680	crwta.exe	99
PID 2680 wrote to memory of 5084	2680	crwta.exe	99
PID 2680 wrote to memory of 5084	2680	crwta.exe	99
PID 5084 wrote to memory of 2904	5084	bGfoJD.exe	100
PID 5084 wrote to memory of 2904	5084	bGfoJD.exe	100
PID 5084 wrote to memory of 2904	5084	bGfoJD.exe	100

C:\Users\Admin\AppData\Local\Temp\11c509649c391209ce09bc178ebffcfc7cbfcf038ce699aebfd1303191c136aa.exe
"C:\Users\Admin\AppData\Local\Temp\11c509649c391209ce09bc178ebffcfc7cbfcf038ce699aebfd1303191c136aa.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2636
- C:\Users\Admin\AppData\Local\Temp\bGfoJD.exe
  C:\Users\Admin\AppData\Local\Temp\bGfoJD.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:2628
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\28165bd9.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3868
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2636 -s 488
  2⤵
  - Program crash
  PID:528

C:\ProgramData\lifcrx\crwta.exe
C:\ProgramData\lifcrx\crwta.exe start
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2680
- C:\Windows\TEMP\bGfoJD.exe
  C:\Windows\TEMP\bGfoJD.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies data under HKEY_USERS
  - Suspicious use of WriteProcessMemory
  PID:5084
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Windows\TEMP\6bec6841.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2636 -ip 2636
1⤵
PID:3524

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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:\ProgramData\lifcrx\crwta.exe

Filesize
248KB

MD5
ecd0928e717ce95b2918b50460813db7

SHA1
bdb4d8572ef6f4a48fa0b5d9d6988bd6ac73db30

SHA256
11c509649c391209ce09bc178ebffcfc7cbfcf038ce699aebfd1303191c136aa

SHA512
ae1d641d2fcd77c8112928ccf564a028244f5763d8f93a093392ce561bac959d667325ac2d3a72abd2c3e3d358870bef1a930d44c611651c6356c0b6830d60e8

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\MQYRE6E5\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\28165bd9.bat

Filesize
187B

MD5
3b091efb1f340e376e08a23d51ece03e

SHA1
408ce5a39a998213dc6fcebb25c6cb84cfa894f8

SHA256
7511f4cdd712f0cb947808f132e63f56f97c323d6562cea58304db1a6ca3389f

SHA512
d704c311270236bb9a90094a3bf6dde1d6cc1c9e78f4f4c350220ee1b87e76d8e8ab2d44ee4fcb5ad0641e5915da0fbc75ca66e06bd87441b91e3ace6a564ac4

Download Submit
C:\Users\Admin\AppData\Local\Temp\40B641FE.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

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

Filesize
15KB

MD5
f7d21de5c4e81341eccd280c11ddcc9a

SHA1
d4e9ef10d7685d491583c6fa93ae5d9105d815bd

SHA256
4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794

SHA512
e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3

Download Submit
C:\Windows\TEMP\6bec6841.bat

Filesize
133B

MD5
f03f05086dca1504d802d5606e5b33e8

SHA1
498797f77e03380ffd1562870e0aa91d66417460

SHA256
324e2cfaf1e3a2faf07101052e045fe857782be11328129df5370fa2da275e21

SHA512
41bf6c8f39310dd7cf3c755a1e147025ca9e5d383a778ee1b3ec9dc1533660d300d882b678f352e32bee69b38fb5b5c8ddf58e4227b25bfe2228f3fa444fc1d5

Download Submit
memory/2628-5-0x0000000000630000-0x0000000000639000-memory.dmp

Filesize
36KB

Download
memory/2628-46-0x0000000000630000-0x0000000000639000-memory.dmp

Filesize
36KB

Download
memory/2636-50-0x0000000000510000-0x0000000000519000-memory.dmp

Filesize
36KB

Download
memory/2636-51-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2636-0-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2636-49-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/2636-69-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/2636-70-0x0000000000510000-0x0000000000519000-memory.dmp

Filesize
36KB

Download
memory/2680-71-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5084-63-0x0000000000AF0000-0x0000000000AF9000-memory.dmp

Filesize
36KB

Download