systembc | 5cdb9c207ee596235c10d2d0544a2475528cd87fb36b2d31c0c06196c5b69002

General

Target

bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe
Size

1.7MB
MD5

d49997877451b110adc8e09d9c04c2b6
SHA1

602504addbd4df06c2ae5467a037edbf4fc41c16
SHA256

bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708
SHA512

7e4e0acecf1b00234fb08c1441b6917cc3c65d4f9b27f369812ff0a719aee4dbae995d00b36ab7eaf97e09f8be27b54c0ec5a80043c3dd4b2340824d5c850664
SSDEEP

49152:Zk7edbYPPeMgp1wQ4H4/Kof7Of6Dmq9zbrQn:Z/dMPPEYQlNqfVUQn

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

C2

89.22.225.242:4193

195.2.93.22:4193

Signatures

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

Drops file in System32 directory 1 IoCs

Processes:

bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe

Drops file in Windows directory 2 IoCs

Processes:

bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe

description	ioc	process
File created	C:\Windows\Tasks\wow64.job	bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe
File opened for modification	C:\Windows\Tasks\wow64.job	bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe

Modifies data under HKEY_USERS 1 IoCs

Processes:

bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exebff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe

pid	process
536	bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe
536	bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe
536	bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe
536	bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe
536	bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe
1164	bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe
1164	bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe
1164	bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe
1164	bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe
1164	bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

taskeng.exe

description	pid	process	target process
PID 748 wrote to memory of 1164	748	taskeng.exe	bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe
PID 748 wrote to memory of 1164	748	taskeng.exe	bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe
PID 748 wrote to memory of 1164	748	taskeng.exe	bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe
PID 748 wrote to memory of 1164	748	taskeng.exe	bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe

C:\Users\Admin\AppData\Local\Temp\bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe
"C:\Users\Admin\AppData\Local\Temp\bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:536

C:\Windows\system32\taskeng.exe
taskeng.exe {9C7DA93A-03C0-447D-8C5C-10155406AAFA} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:748

C:\Users\Admin\AppData\Local\Temp\bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe
C:\Users\Admin\AppData\Local\Temp\bff34ec881bbe9726f025fcf4585150e98178bd2ecdbc7fc29939dbf554ab708.exe start
2⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
PID:1164

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

memory/536-71-0x0000000002530000-0x00000000025B0000-memory.dmp

Filesize
512KB

Download
memory/536-55-0x0000000001F30000-0x00000000027D7000-memory.dmp

Filesize
8.7MB

Download
memory/536-56-0x0000000001F30000-0x00000000027D7000-memory.dmp

Filesize
8.7MB

Download
memory/536-57-0x00000000027E0000-0x000000000294D000-memory.dmp

Filesize
1.4MB

Download
memory/536-58-0x00000000027E0000-0x000000000294D000-memory.dmp

Filesize
1.4MB

Download
memory/536-59-0x0000000001F30000-0x00000000027D7000-memory.dmp

Filesize
8.7MB

Download
memory/536-60-0x00000000027E0000-0x000000000294D000-memory.dmp

Filesize
1.4MB

Download
memory/536-61-0x0000000002530000-0x00000000025B0000-memory.dmp

Filesize
512KB

Download
memory/536-62-0x00000000023C0000-0x00000000023C7000-memory.dmp

Filesize
28KB

Download
memory/536-75-0x00000000027E0000-0x000000000294D000-memory.dmp

Filesize
1.4MB

Download
memory/536-54-0x00000000763D1000-0x00000000763D3000-memory.dmp

Filesize
8KB

Download
memory/1164-67-0x0000000000EC0000-0x0000000001767000-memory.dmp

Filesize
8.7MB

Download
memory/1164-69-0x0000000000B20000-0x0000000000C8D000-memory.dmp

Filesize
1.4MB

Download
memory/1164-70-0x0000000000B20000-0x0000000000C8D000-memory.dmp

Filesize
1.4MB

Download
memory/1164-68-0x0000000000EC0000-0x0000000001767000-memory.dmp

Filesize
8.7MB

Download
memory/1164-72-0x0000000000EC0000-0x0000000001767000-memory.dmp

Filesize
8.7MB

Download
memory/1164-73-0x0000000000B20000-0x0000000000C8D000-memory.dmp

Filesize
1.4MB

Download
memory/1164-74-0x000000000CC80000-0x000000000CD00000-memory.dmp

Filesize
512KB

Download
memory/1164-65-0x0000000000000000-mapping.dmp

Download
memory/1164-76-0x00000000002A0000-0x00000000002A7000-memory.dmp

Filesize
28KB

Download
memory/1164-79-0x000000000CC80000-0x000000000CD00000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads