systembc | 7b2cf05c070a54a9271d765425aa0af47d2445b80baf73963de28a847eefff6e

General

Target

7b2cf05c070a54a9271d765425aa0af47d2445b80baf73963de28a847eefff6e.exe
Size

232KB
MD5

21a3edbe9b154013a16776a80e95425d
SHA1

c402b0c9014745a45315672a81789fa924e64377
SHA256

7b2cf05c070a54a9271d765425aa0af47d2445b80baf73963de28a847eefff6e
SHA512

969024b1a457ad2fd683c935311d3de44aef43d33a394d270b1f03819580eced23ac252d543270b040955b9bf3cbf68f8c03df007b9195b157e4b3bd671c3f88

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

C2

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
Downloads MZ/PE file
Executes dropped EXE 3 IoCs

Processes:

gjpue.exepbismek.execsdjrxl.exe

pid process

1152 gjpue.exe
5060 pbismek.exe
3616 csdjrxl.exe

pid	process
1152	gjpue.exe
5060	pbismek.exe
3616	csdjrxl.exe

Drops file in Windows directory 5 IoCs

Processes:

7b2cf05c070a54a9271d765425aa0af47d2445b80baf73963de28a847eefff6e.exegjpue.exepbismek.exe

description	ioc	process
File created	C:\Windows\Tasks\gjpue.job	7b2cf05c070a54a9271d765425aa0af47d2445b80baf73963de28a847eefff6e.exe
File opened for modification	C:\Windows\Tasks\gjpue.job	7b2cf05c070a54a9271d765425aa0af47d2445b80baf73963de28a847eefff6e.exe
File created	C:\Windows\Tasks\isfkjhecwvsqnligcbw.job	gjpue.exe
File created	C:\Windows\Tasks\csdjrxl.job	pbismek.exe
File opened for modification	C:\Windows\Tasks\csdjrxl.job	pbismek.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1132 3668 WerFault.exe 7b2cf05c070a54a9271d765425aa0af47d2445b80baf73963de28a847eefff6e.exe

pid	pid_target	process	target process
1132	3668	WerFault.exe	7b2cf05c070a54a9271d765425aa0af47d2445b80baf73963de28a847eefff6e.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

7b2cf05c070a54a9271d765425aa0af47d2445b80baf73963de28a847eefff6e.exepbismek.exe

pid	process
3668	7b2cf05c070a54a9271d765425aa0af47d2445b80baf73963de28a847eefff6e.exe
3668	7b2cf05c070a54a9271d765425aa0af47d2445b80baf73963de28a847eefff6e.exe
5060	pbismek.exe
5060	pbismek.exe

C:\Users\Admin\AppData\Local\Temp\7b2cf05c070a54a9271d765425aa0af47d2445b80baf73963de28a847eefff6e.exe
"C:\Users\Admin\AppData\Local\Temp\7b2cf05c070a54a9271d765425aa0af47d2445b80baf73963de28a847eefff6e.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:3668

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3668 -s 484
2⤵
- Program crash
PID:1132

C:\ProgramData\hgcxk\gjpue.exe
C:\ProgramData\hgcxk\gjpue.exe start
1⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:1152

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3668 -ip 3668
1⤵
PID:408

C:\Windows\TEMP\pbismek.exe
C:\Windows\TEMP\pbismek.exe
1⤵
- Executes dropped EXE
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:5060

C:\ProgramData\nifi\csdjrxl.exe
C:\ProgramData\nifi\csdjrxl.exe start
1⤵
- Executes dropped EXE
PID:3616

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\ProgramData\hgcxk\gjpue.exe
MD5
21a3edbe9b154013a16776a80e95425d

SHA1
c402b0c9014745a45315672a81789fa924e64377

SHA256
7b2cf05c070a54a9271d765425aa0af47d2445b80baf73963de28a847eefff6e

SHA512
969024b1a457ad2fd683c935311d3de44aef43d33a394d270b1f03819580eced23ac252d543270b040955b9bf3cbf68f8c03df007b9195b157e4b3bd671c3f88

Download Submit
C:\ProgramData\hgcxk\gjpue.exe
MD5
21a3edbe9b154013a16776a80e95425d

SHA1
c402b0c9014745a45315672a81789fa924e64377

SHA256
7b2cf05c070a54a9271d765425aa0af47d2445b80baf73963de28a847eefff6e

SHA512
969024b1a457ad2fd683c935311d3de44aef43d33a394d270b1f03819580eced23ac252d543270b040955b9bf3cbf68f8c03df007b9195b157e4b3bd671c3f88

Download Submit
C:\ProgramData\nifi\csdjrxl.exe
MD5
21a3edbe9b154013a16776a80e95425d

SHA1
c402b0c9014745a45315672a81789fa924e64377

SHA256
7b2cf05c070a54a9271d765425aa0af47d2445b80baf73963de28a847eefff6e

SHA512
969024b1a457ad2fd683c935311d3de44aef43d33a394d270b1f03819580eced23ac252d543270b040955b9bf3cbf68f8c03df007b9195b157e4b3bd671c3f88

Download Submit
C:\ProgramData\nifi\csdjrxl.exe
MD5
21a3edbe9b154013a16776a80e95425d

SHA1
c402b0c9014745a45315672a81789fa924e64377

SHA256
7b2cf05c070a54a9271d765425aa0af47d2445b80baf73963de28a847eefff6e

SHA512
969024b1a457ad2fd683c935311d3de44aef43d33a394d270b1f03819580eced23ac252d543270b040955b9bf3cbf68f8c03df007b9195b157e4b3bd671c3f88

Download Submit
C:\Windows\TEMP\pbismek.exe
MD5
21a3edbe9b154013a16776a80e95425d

SHA1
c402b0c9014745a45315672a81789fa924e64377

SHA256
7b2cf05c070a54a9271d765425aa0af47d2445b80baf73963de28a847eefff6e

SHA512
969024b1a457ad2fd683c935311d3de44aef43d33a394d270b1f03819580eced23ac252d543270b040955b9bf3cbf68f8c03df007b9195b157e4b3bd671c3f88

Download Submit
C:\Windows\Tasks\gjpue.job
MD5
6b8c3e629e6e4906aecbda7f655017ef

SHA1
a7885410e12621ab90bee8589bd6ae83d0ba7ddf

SHA256
1f8dfda8e335cec3cc4d79abcef97959c206fec599229cd455892d70c20886d9

SHA512
3ae938ddaf575787ddfbc033b6334a6d96fcefa47dec4cf9dc068ec139f5a974cbf74c6ec74827560a7dd588f793bcd9e1c66871e4de940eb632b5f4104c394e

Download Submit
C:\Windows\Temp\pbismek.exe
MD5
21a3edbe9b154013a16776a80e95425d

SHA1
c402b0c9014745a45315672a81789fa924e64377

SHA256
7b2cf05c070a54a9271d765425aa0af47d2445b80baf73963de28a847eefff6e

SHA512
969024b1a457ad2fd683c935311d3de44aef43d33a394d270b1f03819580eced23ac252d543270b040955b9bf3cbf68f8c03df007b9195b157e4b3bd671c3f88

Download Submit
memory/1152-136-0x00000000004E5000-0x00000000004EE000-memory.dmp

Filesize
36KB

Download
memory/1152-137-0x00000000004E5000-0x00000000004EE000-memory.dmp

Filesize
36KB

Download
memory/1152-138-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/3616-149-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/3616-148-0x0000000000665000-0x000000000066E000-memory.dmp

Filesize
36KB

Download
memory/3616-147-0x0000000000665000-0x000000000066E000-memory.dmp

Filesize
36KB

Download
memory/3668-130-0x00000000005A9000-0x00000000005B2000-memory.dmp

Filesize
36KB

Download
memory/3668-133-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/3668-131-0x00000000005A9000-0x00000000005B2000-memory.dmp

Filesize
36KB

Download
memory/3668-132-0x00000000021A0000-0x00000000021A9000-memory.dmp

Filesize
36KB

Download
memory/5060-144-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/5060-143-0x0000000000645000-0x000000000064E000-memory.dmp

Filesize
36KB

Download
memory/5060-141-0x0000000000645000-0x000000000064E000-memory.dmp

Filesize
36KB

Download

Analysis

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