systembc | 11c509649c391209ce09bc178ebffcfc7cbfcf038ce699aebfd1303191c136aa

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
24-07-2024 20:34

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General

Target

B4286BCE9138F9C8FFF9F8FC2EB4DCDA9D48AF83C62CF5EA03DE48F862B301D9.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
behavioral1/files/0x000a000000016b9b-2.dat	aspack_v212_v242

Executes dropped EXE 3 IoCs

pid	Process
2028	bGfoJD.exe
1076	jahigs.exe
1796	bGfoJD.exe

Loads dropped DLL 4 IoCs

pid	Process
1948	B4286BCE9138F9C8FFF9F8FC2EB4DCDA9D48AF83C62CF5EA03DE48F862B301D9.exe
1948	B4286BCE9138F9C8FFF9F8FC2EB4DCDA9D48AF83C62CF5EA03DE48F862B301D9.exe
1076	jahigs.exe
1076	jahigs.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jabswitch.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jps.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Microsoft Games\Chess\Chess.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Microsoft Games\Solitaire\Solitaire.exe	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSOHTMED.EXE	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\wsimport.exe	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateBroker.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jmap.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\lib\nbexec64.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jre7\bin\javaws.exe	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\wab.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jre7\bin\rmid.exe	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PPTICO.EXE	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\native2ascii.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jre7\bin\java-rmi.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Microsoft Games\FreeCell\FreeCell.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Microsoft Office\Office14\MSOHTMED.EXE	bGfoJD.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\SETLANG.EXE	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\VPREVIEW.EXE	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Install\{8EA3FE23-8E0B-4836-8777-C2D6ED0590DC}\chrome_installer.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\xjc.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\jp2launcher.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\rmiregistry.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\tnameserv.exe	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\A3DUtility.exe	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\unpack200.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Mozilla Firefox\private_browsing.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\servertool.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jre7\bin\javacpl.exe	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Setup Files\{AC76BA86-7AD7-1033-7B44-A90000000001}\Setup.exe	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\GROOVE.EXE	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javah.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jre7\bin\tnameserv.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Windows Sidebar\sidebar.exe	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateComRegisterShell64.exe	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ONENOTEM.EXE	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\POWERPNT.EXE	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\SCANPST.EXE	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jinfo.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jre7\bin\keytool.exe	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateOnDemand.exe	bGfoJD.exe
File opened for modification	C:\Program Files\7-Zip\7zG.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Microsoft Games\Mahjong\Mahjong.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Windows Mail\wabmig.exe	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSACCESS.EXE	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\SELFCERT.EXE	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\rmic.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\serialver.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\tnameserv.exe	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroTextExtractor.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\ktab.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jre7\bin\unpack200.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Microsoft Games\Purble Place\PurblePlace.exe	bGfoJD.exe
File opened for modification	C:\Program Files\7-Zip\7z.exe	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\LogTransport2.exe	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSOSYNC.EXE	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\rmiregistry.exe	bGfoJD.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\reader_sl.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe	bGfoJD.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\javacpl.exe	bGfoJD.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\jahigs.job	B4286BCE9138F9C8FFF9F8FC2EB4DCDA9D48AF83C62CF5EA03DE48F862B301D9.exe
File opened for modification	C:\Windows\Tasks\jahigs.job	B4286BCE9138F9C8FFF9F8FC2EB4DCDA9D48AF83C62CF5EA03DE48F862B301D9.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	bGfoJD.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jahigs.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	B4286BCE9138F9C8FFF9F8FC2EB4DCDA9D48AF83C62CF5EA03DE48F862B301D9.exe

Modifies data under HKEY_USERS 3 IoCs

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

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1948	B4286BCE9138F9C8FFF9F8FC2EB4DCDA9D48AF83C62CF5EA03DE48F862B301D9.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1948 wrote to memory of 2028	1948	B4286BCE9138F9C8FFF9F8FC2EB4DCDA9D48AF83C62CF5EA03DE48F862B301D9.exe	30
PID 1948 wrote to memory of 2028	1948	B4286BCE9138F9C8FFF9F8FC2EB4DCDA9D48AF83C62CF5EA03DE48F862B301D9.exe	30
PID 1948 wrote to memory of 2028	1948	B4286BCE9138F9C8FFF9F8FC2EB4DCDA9D48AF83C62CF5EA03DE48F862B301D9.exe	30
PID 1948 wrote to memory of 2028	1948	B4286BCE9138F9C8FFF9F8FC2EB4DCDA9D48AF83C62CF5EA03DE48F862B301D9.exe	30
PID 2028 wrote to memory of 2708	2028	bGfoJD.exe	31
PID 2028 wrote to memory of 2708	2028	bGfoJD.exe	31
PID 2028 wrote to memory of 2708	2028	bGfoJD.exe	31
PID 2028 wrote to memory of 2708	2028	bGfoJD.exe	31
PID 2100 wrote to memory of 1076	2100	taskeng.exe	34
PID 2100 wrote to memory of 1076	2100	taskeng.exe	34
PID 2100 wrote to memory of 1076	2100	taskeng.exe	34
PID 2100 wrote to memory of 1076	2100	taskeng.exe	34
PID 1076 wrote to memory of 1796	1076	jahigs.exe	35
PID 1076 wrote to memory of 1796	1076	jahigs.exe	35
PID 1076 wrote to memory of 1796	1076	jahigs.exe	35
PID 1076 wrote to memory of 1796	1076	jahigs.exe	35
PID 1796 wrote to memory of 3004	1796	bGfoJD.exe	36
PID 1796 wrote to memory of 3004	1796	bGfoJD.exe	36
PID 1796 wrote to memory of 3004	1796	bGfoJD.exe	36
PID 1796 wrote to memory of 3004	1796	bGfoJD.exe	36

C:\Users\Admin\AppData\Local\Temp\B4286BCE9138F9C8FFF9F8FC2EB4DCDA9D48AF83C62CF5EA03DE48F862B301D9.exe
"C:\Users\Admin\AppData\Local\Temp\B4286BCE9138F9C8FFF9F8FC2EB4DCDA9D48AF83C62CF5EA03DE48F862B301D9.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1948
- C:\Users\Admin\AppData\Local\Temp\bGfoJD.exe
  C:\Users\Admin\AppData\Local\Temp\bGfoJD.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2028
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\015813cd.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2708

C:\Windows\system32\taskeng.exe
taskeng.exe {E230E38F-17C8-4BF9-BA9B-7A3D6420878C} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:2100
- C:\ProgramData\vctwb\jahigs.exe
  C:\ProgramData\vctwb\jahigs.exe start
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1076
- - C:\Windows\TEMP\bGfoJD.exe
    C:\Windows\TEMP\bGfoJD.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Modifies data under HKEY_USERS
    - Suspicious use of WriteProcessMemory
    PID:1796
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Windows\TEMP\60911ec2.bat" "
      4⤵
      System Location Discovery: System Language Discovery
      PID:3004

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

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Downloads

C:\ProgramData\vctwb\jahigs.exe

Filesize
248KB

MD5
ecd0928e717ce95b2918b50460813db7

SHA1
bdb4d8572ef6f4a48fa0b5d9d6988bd6ac73db30

SHA256
11c509649c391209ce09bc178ebffcfc7cbfcf038ce699aebfd1303191c136aa

SHA512
ae1d641d2fcd77c8112928ccf564a028244f5763d8f93a093392ce561bac959d667325ac2d3a72abd2c3e3d358870bef1a930d44c611651c6356c0b6830d60e8

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\Z7V06J7Q\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\015813cd.bat

Filesize
187B

MD5
b773d2c5dbe92a2281ed202d0f643e5d

SHA1
42878b9c97abda8440886bd83edbe29ad502e23e

SHA256
293b0e5c044be8949a26ab9fca7fa606cc2a3da111795f0c04f160f50cd8b5e6

SHA512
16b16c38c11acfb250bc9385691760b360ec8c0bc86d369ba9a70887140329a885db2b77ecc711814a764c2cbebd158f3623051fede56fb28546c42037d2ec98

Download Submit
C:\Users\Admin\AppData\Local\Temp\446706D9.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

Download Submit
C:\Windows\Temp\60911ec2.bat

Filesize
133B

MD5
b2626a7c0191c6f9550b7bece1dc42ed

SHA1
efd137eef224ed9256aac337579c939e3e24045b

SHA256
a1b73a798c2963101608375cea0d79633a33a2142c9e9c22327a60077472b8fb

SHA512
55fa99c8d6684d892cbec35d26c2e8e78d0354014ec37217cdecaa2916f0ba742cee845de991329608e64af06f1dc4a09a6442af7da7c7a368aebe7c2a7fda56

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

Filesize
15KB

MD5
f7d21de5c4e81341eccd280c11ddcc9a

SHA1
d4e9ef10d7685d491583c6fa93ae5d9105d815bd

SHA256
4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794

SHA512
e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3

Download Submit
memory/1076-69-0x0000000000D70000-0x0000000000D79000-memory.dmp

Filesize
36KB

Download
memory/1076-91-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1796-84-0x0000000000D70000-0x0000000000D79000-memory.dmp

Filesize
36KB

Download
memory/1948-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1948-58-0x0000000000230000-0x0000000000239000-memory.dmp

Filesize
36KB

Download
memory/1948-60-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1948-4-0x00000000010F0000-0x00000000010F9000-memory.dmp

Filesize
36KB

Download
memory/1948-57-0x0000000000580000-0x0000000000680000-memory.dmp

Filesize
1024KB

Download
memory/1948-1-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1948-89-0x0000000000580000-0x0000000000680000-memory.dmp

Filesize
1024KB

Download
memory/1948-90-0x0000000000230000-0x0000000000239000-memory.dmp

Filesize
36KB

Download
memory/1948-9-0x00000000010F0000-0x00000000010F9000-memory.dmp

Filesize
36KB

Download
memory/2028-12-0x00000000010F0000-0x00000000010F9000-memory.dmp

Filesize
36KB

Download
memory/2028-54-0x00000000010F0000-0x00000000010F9000-memory.dmp

Filesize
36KB

Download