systembc | e77eb0d03b445cf74f20c2614b1135b62da61ecf0d7c48194b71b8f73297272d

Analysis

max time kernel
144s
max time network
151s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
24-07-2024 16:22

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General

Target

7861180570ECFB48FCCC3E1CFF748974C64E58C31530AEE4F9243AF810200CC3.exe
Size

247KB
MD5

e80a1d9a248c337a5d95f09776c0b092
SHA1

4585f99e00ce0068f9a40893b4741b5151066173
SHA256

e77eb0d03b445cf74f20c2614b1135b62da61ecf0d7c48194b71b8f73297272d
SHA512

3c42c682236638a61d3ec6323fc633eb92eab9118e589ab012d407231069b974232d36bfa823dce6f9d24e618cd68fc9ac95b541966d6a4562a3d40b3dc5c04a
SSDEEP

3072:xrRbOKH6aSZYEGhm0OWh5bSpEC2lrGCH:x1OWSZYlOWfSpENo

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/0x0009000000012118-2.dat	aspack_v212_v242

Executes dropped EXE 3 IoCs

pid	Process
2268	NmKfkd.exe
3000	lsrlpu.exe
2276	NmKfkd.exe

Loads dropped DLL 4 IoCs

pid	Process
2272	7861180570ECFB48FCCC3E1CFF748974C64E58C31530AEE4F9243AF810200CC3.exe
2272	7861180570ECFB48FCCC3E1CFF748974C64E58C31530AEE4F9243AF810200CC3.exe
3000	lsrlpu.exe
3000	lsrlpu.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\wsimport.exe	NmKfkd.exe
File opened for modification	C:\Program Files\Java\jre7\bin\java-rmi.exe	NmKfkd.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\rmic.exe	NmKfkd.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\javacpl.exe	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE	NmKfkd.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\keytool.exe	NmKfkd.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\lib\nbexec.exe	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\reader_sl.exe	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSACCESS.EXE	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OIS.EXE	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\SETLANG.EXE	NmKfkd.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\kinit.exe	NmKfkd.exe
File opened for modification	C:\Program Files\Java\jre7\bin\servertool.exe	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\GROOVE.EXE	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe	NmKfkd.exe
File opened for modification	C:\Program Files\7-Zip\7zG.exe	NmKfkd.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\javaws.exe	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdate.exe	NmKfkd.exe
File opened for modification	C:\Program Files\Microsoft Games\Minesweeper\MineSweeper.exe	NmKfkd.exe
File opened for modification	C:\Program Files\Mozilla Firefox\pingsender.exe	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSOHTMED.EXE	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateOnDemand.exe	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\INFOPATH.EXE	NmKfkd.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\notification_helper.exe	NmKfkd.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jstat.exe	NmKfkd.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\rmiregistry.exe	NmKfkd.exe
File opened for modification	C:\Program Files\Microsoft Games\Multiplayer\Spades\shvlzm.exe	NmKfkd.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\launcher.exe	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OUTLOOK.EXE	NmKfkd.exe
File opened for modification	C:\Program Files\Java\jre7\bin\jabswitch.exe	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroTextExtractor.exe	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Eula.exe	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateBroker.exe	NmKfkd.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javah.exe	NmKfkd.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jmc.exe	NmKfkd.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\policytool.exe	NmKfkd.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jstack.exe	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSOSYNC.EXE	NmKfkd.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\servertool.exe	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\SELFCERT.EXE	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\NAMECONTROLSERVER.EXE	NmKfkd.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\schemagen.exe	NmKfkd.exe
File opened for modification	C:\Program Files\Microsoft Games\Purble Place\PurblePlace.exe	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\A3DUtility.exe	NmKfkd.exe
File opened for modification	C:\Program Files\Mozilla Firefox\uninstall\helper.exe	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Setup Files\{AC76BA86-7AD7-1033-7B44-A90000000001}\Setup.exe	NmKfkd.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jhat.exe	NmKfkd.exe
File opened for modification	C:\Program Files\Java\jre7\bin\ktab.exe	NmKfkd.exe
File opened for modification	C:\Program Files\Mozilla Firefox\minidump-analyzer.exe	NmKfkd.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javaw.exe	NmKfkd.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\pack200.exe	NmKfkd.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\unpack200.exe	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32Info.exe	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\SCANPST.EXE	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateSetup.exe	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\WORDICON.EXE	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\POWERPNT.EXE	NmKfkd.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\rmiregistry.exe	NmKfkd.exe
File opened for modification	C:\Program Files\Windows Journal\PDIALOG.exe	NmKfkd.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSQRY32.EXE	NmKfkd.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\lsrlpu.job	7861180570ECFB48FCCC3E1CFF748974C64E58C31530AEE4F9243AF810200CC3.exe
File opened for modification	C:\Windows\Tasks\lsrlpu.job	7861180570ECFB48FCCC3E1CFF748974C64E58C31530AEE4F9243AF810200CC3.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	7861180570ECFB48FCCC3E1CFF748974C64E58C31530AEE4F9243AF810200CC3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NmKfkd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lsrlpu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NmKfkd.exe

Modifies data under HKEY_USERS 3 IoCs

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

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2272	7861180570ECFB48FCCC3E1CFF748974C64E58C31530AEE4F9243AF810200CC3.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 2268	2272	7861180570ECFB48FCCC3E1CFF748974C64E58C31530AEE4F9243AF810200CC3.exe	30
PID 2272 wrote to memory of 2268	2272	7861180570ECFB48FCCC3E1CFF748974C64E58C31530AEE4F9243AF810200CC3.exe	30
PID 2272 wrote to memory of 2268	2272	7861180570ECFB48FCCC3E1CFF748974C64E58C31530AEE4F9243AF810200CC3.exe	30
PID 2272 wrote to memory of 2268	2272	7861180570ECFB48FCCC3E1CFF748974C64E58C31530AEE4F9243AF810200CC3.exe	30
PID 2268 wrote to memory of 3056	2268	NmKfkd.exe	31
PID 2268 wrote to memory of 3056	2268	NmKfkd.exe	31
PID 2268 wrote to memory of 3056	2268	NmKfkd.exe	31
PID 2268 wrote to memory of 3056	2268	NmKfkd.exe	31
PID 2180 wrote to memory of 3000	2180	taskeng.exe	34
PID 2180 wrote to memory of 3000	2180	taskeng.exe	34
PID 2180 wrote to memory of 3000	2180	taskeng.exe	34
PID 2180 wrote to memory of 3000	2180	taskeng.exe	34
PID 3000 wrote to memory of 2276	3000	lsrlpu.exe	35
PID 3000 wrote to memory of 2276	3000	lsrlpu.exe	35
PID 3000 wrote to memory of 2276	3000	lsrlpu.exe	35
PID 3000 wrote to memory of 2276	3000	lsrlpu.exe	35
PID 2276 wrote to memory of 2904	2276	NmKfkd.exe	36
PID 2276 wrote to memory of 2904	2276	NmKfkd.exe	36
PID 2276 wrote to memory of 2904	2276	NmKfkd.exe	36
PID 2276 wrote to memory of 2904	2276	NmKfkd.exe	36

C:\Users\Admin\AppData\Local\Temp\7861180570ECFB48FCCC3E1CFF748974C64E58C31530AEE4F9243AF810200CC3.exe
"C:\Users\Admin\AppData\Local\Temp\7861180570ECFB48FCCC3E1CFF748974C64E58C31530AEE4F9243AF810200CC3.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2272
- C:\Users\Admin\AppData\Local\Temp\NmKfkd.exe
  C:\Users\Admin\AppData\Local\Temp\NmKfkd.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2268
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\129228aa.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3056

C:\Windows\system32\taskeng.exe
taskeng.exe {BA6C5467-4476-4560-9644-6AE42A46AD42} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:2180
- C:\ProgramData\akat\lsrlpu.exe
  C:\ProgramData\akat\lsrlpu.exe start
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3000
- - C:\Windows\TEMP\NmKfkd.exe
    C:\Windows\TEMP\NmKfkd.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Modifies data under HKEY_USERS
    - Suspicious use of WriteProcessMemory
    PID:2276
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Windows\TEMP\4bd70169.bat" "
      4⤵
      System Location Discovery: System Language Discovery
      PID:2904

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\akat\lsrlpu.exe

Filesize
247KB

MD5
e80a1d9a248c337a5d95f09776c0b092

SHA1
4585f99e00ce0068f9a40893b4741b5151066173

SHA256
e77eb0d03b445cf74f20c2614b1135b62da61ecf0d7c48194b71b8f73297272d

SHA512
3c42c682236638a61d3ec6323fc633eb92eab9118e589ab012d407231069b974232d36bfa823dce6f9d24e618cd68fc9ac95b541966d6a4562a3d40b3dc5c04a

Download Submit
C:\Users\Admin\AppData\Local\Temp\129228aa.bat

Filesize
187B

MD5
abc669f93104a73c1ba9ad4fd2360a04

SHA1
d6ebea78131e0ff5cf8e685f9a1e865bae5a3469

SHA256
3d63988f86f835ed3d3c4c7c71abc5017ebfb53a3a3adb231b9cf86caa2af955

SHA512
7fac1bc85df13cc8db7d3c28c56c98b36ebba63cff49803eda7f1707591dba2e897ef03b7fcb7e7dedf299ec76fc53f1bae81209cececb339782e23f85bc735b

Download Submit
C:\Users\Admin\AppData\Local\Temp\2B5C32E4.exe

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\2B5C32E4.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

Download Submit
C:\Windows\Temp\4bd70169.bat

Filesize
133B

MD5
f8b5180089cacd1b6948dd246ec276eb

SHA1
1963dcac71fad63c80d5dc9ebf6b2b967492f625

SHA256
61d2723e54c419fac7365ef28ec367f1d34ca1e177d458c4feeb228098cebcdd

SHA512
57186b0d0f4a15aea3e7380b2e3f53fd7a970bd4e4318ec135854b74159b6da531b4faa751d289cea008fafd30f614ad223591351757795e8e9319a2e26a6c84

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

Filesize
15KB

MD5
f7d21de5c4e81341eccd280c11ddcc9a

SHA1
d4e9ef10d7685d491583c6fa93ae5d9105d815bd

SHA256
4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794

SHA512
e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3

Download Submit
memory/2268-54-0x0000000000260000-0x0000000000269000-memory.dmp

Filesize
36KB

Download
memory/2268-12-0x0000000000260000-0x0000000000269000-memory.dmp

Filesize
36KB

Download
memory/2272-57-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/2272-58-0x0000000000220000-0x0000000000229000-memory.dmp

Filesize
36KB

Download
memory/2272-1-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2272-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2272-60-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2272-11-0x0000000000260000-0x0000000000269000-memory.dmp

Filesize
36KB

Download
memory/2272-4-0x0000000000260000-0x0000000000269000-memory.dmp

Filesize
36KB

Download
memory/2272-89-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/2272-90-0x0000000000220000-0x0000000000229000-memory.dmp

Filesize
36KB

Download
memory/2276-75-0x0000000000F70000-0x0000000000F79000-memory.dmp

Filesize
36KB

Download
memory/2276-85-0x0000000000F70000-0x0000000000F79000-memory.dmp

Filesize
36KB

Download
memory/3000-67-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/3000-92-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download