systembc | 69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d

Analysis

max time kernel
145s
max time network
150s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
25-07-2024 03:30

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General

Target

69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d.exe
Size

240KB
MD5

9ad0e9c3ba18150e9bb1176cd3cc5cfb
SHA1

ca69a444c9bdb2b80411cd9ba8a3be06a87053c2
SHA256

69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d
SHA512

78af683bfb37d139a1cb3e3050b1a7075443197fec209d376aafdaa0694590de1a9103dd82725649dd4b35d7485e5b7a92f74d59a531ebe06fef513e15f3650b
SSDEEP

1536:YzlKjIgWITA+dAGkDEQqrj0OzgFx3wyU0SyvmQm3ZH459VSypXoDzjD7GCq2iW7z:OlKjIbAUFzU0Scm13259VSypXAv/GCH

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
behavioral1/files/0x000a000000012029-8.dat	aspack_v212_v242

Executes dropped EXE 3 IoCs

pid	Process
2524	CaEsb.exe
376	pfbpls.exe
1868	CaEsb.exe

Loads dropped DLL 4 IoCs

pid	Process
1460	69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d.exe
1460	69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d.exe
376	pfbpls.exe
376	pfbpls.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc-cache-gen.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSTORE.EXE	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\tnameserv.exe	CaEsb.exe
File opened for modification	C:\Program Files\Mozilla Firefox\minidump-analyzer.exe	CaEsb.exe
File opened for modification	C:\Program Files\Windows Mail\wab.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\policytool.exe	CaEsb.exe
File opened for modification	C:\Program Files\Mozilla Firefox\private_browsing.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Download\{8A69D345-D564-463C-AFF1-A69D9E530F96}\106.0.5249.119\chrome_installer.exe	CaEsb.exe
File opened for modification	C:\Program Files\7-Zip\7zFM.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\unpack200.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateSetup.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\WORDICON.EXE	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\servertool.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Wordconv.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\keytool.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\rmid.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\rmiregistry.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jre7\bin\kinit.exe	CaEsb.exe
File opened for modification	C:\Program Files\Windows Sidebar\sidebar.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jabswitch.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javaw.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\launcher.exe	CaEsb.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	CaEsb.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\wsgen.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSOUC.EXE	CaEsb.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\Installer\setup.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jstack.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\java.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jcmd.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\wsimport.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OIS.EXE	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\java-rmi.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\pack200.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jre7\bin\unpack200.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\sidebar.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jar.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jstatd.exe	CaEsb.exe
File opened for modification	C:\Program Files\Microsoft Games\Multiplayer\Spades\shvlzm.exe	CaEsb.exe
File opened for modification	C:\Program Files\Windows Defender\MSASCui.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleCrashHandler.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\idlj.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jre7\bin\jp2launcher.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\lib\nbexec.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSPUB.EXE	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\SETLANG.EXE	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\VPREVIEW.EXE	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javap.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSOHTMED.EXE	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\policytool.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jre7\bin\keytool.exe	CaEsb.exe
File opened for modification	C:\Program Files\Windows Defender\MpCmdRun.exe	CaEsb.exe
File opened for modification	C:\Program Files\Windows Mail\wabmig.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\orbd.exe	CaEsb.exe
File opened for modification	C:\Program Files\Windows Photo Viewer\ImagingDevices.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\java.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\A3DUtility.exe	CaEsb.exe
File opened for modification	C:\Program Files\Microsoft Games\Solitaire\Solitaire.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroTextExtractor.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateBroker.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\misc.exe	CaEsb.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\pfbpls.job	69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d.exe
File opened for modification	C:\Windows\Tasks\pfbpls.job	69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d.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 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CaEsb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pfbpls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CaEsb.exe

Modifies data under HKEY_USERS 3 IoCs

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

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1460	69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1460 wrote to memory of 2524	1460	69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d.exe	30
PID 1460 wrote to memory of 2524	1460	69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d.exe	30
PID 1460 wrote to memory of 2524	1460	69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d.exe	30
PID 1460 wrote to memory of 2524	1460	69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d.exe	30
PID 2524 wrote to memory of 2628	2524	CaEsb.exe	32
PID 2524 wrote to memory of 2628	2524	CaEsb.exe	32
PID 2524 wrote to memory of 2628	2524	CaEsb.exe	32
PID 2524 wrote to memory of 2628	2524	CaEsb.exe	32
PID 2276 wrote to memory of 376	2276	taskeng.exe	36
PID 2276 wrote to memory of 376	2276	taskeng.exe	36
PID 2276 wrote to memory of 376	2276	taskeng.exe	36
PID 2276 wrote to memory of 376	2276	taskeng.exe	36
PID 376 wrote to memory of 1868	376	pfbpls.exe	37
PID 376 wrote to memory of 1868	376	pfbpls.exe	37
PID 376 wrote to memory of 1868	376	pfbpls.exe	37
PID 376 wrote to memory of 1868	376	pfbpls.exe	37
PID 1868 wrote to memory of 2836	1868	CaEsb.exe	38
PID 1868 wrote to memory of 2836	1868	CaEsb.exe	38
PID 1868 wrote to memory of 2836	1868	CaEsb.exe	38
PID 1868 wrote to memory of 2836	1868	CaEsb.exe	38

C:\Users\Admin\AppData\Local\Temp\69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d.exe
"C:\Users\Admin\AppData\Local\Temp\69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1460
- C:\Users\Admin\AppData\Local\Temp\CaEsb.exe
  C:\Users\Admin\AppData\Local\Temp\CaEsb.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2524
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\58162a43.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2628

C:\Windows\system32\taskeng.exe
taskeng.exe {70E8B89A-B8DF-4E4E-8E78-4D514C7792F7} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:2276
- C:\ProgramData\fneamx\pfbpls.exe
  C:\ProgramData\fneamx\pfbpls.exe start
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:376
- - C:\Windows\TEMP\CaEsb.exe
    C:\Windows\TEMP\CaEsb.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Modifies data under HKEY_USERS
    - Suspicious use of WriteProcessMemory
    PID:1868
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Windows\TEMP\45992d77.bat" "
      4⤵
      System Location Discovery: System Language Discovery
      PID:2836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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:\ProgramData\fneamx\pfbpls.exe

Filesize
240KB

MD5
9ad0e9c3ba18150e9bb1176cd3cc5cfb

SHA1
ca69a444c9bdb2b80411cd9ba8a3be06a87053c2

SHA256
69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d

SHA512
78af683bfb37d139a1cb3e3050b1a7075443197fec209d376aafdaa0694590de1a9103dd82725649dd4b35d7485e5b7a92f74d59a531ebe06fef513e15f3650b

Download Submit
C:\Users\Admin\AppData\Local\Temp\1F85365D.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

Download Submit
C:\Users\Admin\AppData\Local\Temp\58162a43.bat

Filesize
185B

MD5
639183afba0e223e671e761ff38a04ce

SHA1
987cc665a59c5653c9252e0c3b634522aebe8565

SHA256
87549d01a6e108051cebf0c30354f6debabc3be8bdab2fdcbdfc7e2ef8e13b67

SHA512
584a73b59879e2027b09cb5c183c6ccc71b412f79b8222787fe6ada4f005e2a32b37bb4bbab7d3054b712df593be0e5626bbebddc84b7b116701a471c229339f

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

Filesize
15KB

MD5
f7d21de5c4e81341eccd280c11ddcc9a

SHA1
d4e9ef10d7685d491583c6fa93ae5d9105d815bd

SHA256
4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794

SHA512
e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3

Download Submit
C:\Windows\Temp\45992d77.bat

Filesize
131B

MD5
0b5de2549893e13f0822a4c36e78a846

SHA1
35edd56f1157709c000a2bf2210f97334ac2884e

SHA256
e91d8a584e15e921649cfb89597a44ba43b65d3cbff057cf5ad1bd73bf918924

SHA512
be1957fcbbf9ea634c17fde58e048906d623a4dc467b7e2a900e04fed3585e50b98769369b3332691ce6754221be1b11051803a994978c03a55a5bfa2716263a

Download Submit
memory/376-57-0x0000000000AC0000-0x0000000000AC9000-memory.dmp

Filesize
36KB

Download
memory/376-53-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/376-79-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1460-18-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1460-16-0x00000000002B0000-0x00000000003B0000-memory.dmp

Filesize
1024KB

Download
memory/1460-77-0x00000000001B0000-0x00000000001B9000-memory.dmp

Filesize
36KB

Download
memory/1460-47-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1460-76-0x00000000002B0000-0x00000000003B0000-memory.dmp

Filesize
1024KB

Download
memory/1460-17-0x00000000001B0000-0x00000000001B9000-memory.dmp

Filesize
36KB

Download
memory/1460-10-0x00000000013B0000-0x00000000013B9000-memory.dmp

Filesize
36KB

Download
memory/1460-1-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1460-11-0x00000000013B0000-0x00000000013B9000-memory.dmp

Filesize
36KB

Download
memory/1868-64-0x0000000000AC0000-0x0000000000AC9000-memory.dmp

Filesize
36KB

Download
memory/2524-45-0x00000000013B0000-0x00000000013B9000-memory.dmp

Filesize
36KB

Download
memory/2524-12-0x00000000013B0000-0x00000000013B9000-memory.dmp

Filesize
36KB

Download