systembc | 2c3fade9317146109c3dad7e9e06168a2af28d04185c248a3322cd8b8ae8901f

Analysis

max time kernel
297s
max time network
303s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
17-12-2022 15:29

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General

Target

2288.exe
Size

303KB
MD5

a91d1ad4f99dc142a63342a79a04a61c
SHA1

9328310f5567fc7247516d21f339fb99b67706be
SHA256

2c3fade9317146109c3dad7e9e06168a2af28d04185c248a3322cd8b8ae8901f
SHA512

f869c9568afb90bec12732ce55552e66fe1dc2f9a52212a8011e2509805bfc59574ecbe4f52144ed8bde0b240849816cdb261ccefcb9d00f1ba65f0daa9cc39a
SSDEEP

3072:S7WJjr2Y4hMi7RVRypzplBot6LB1fhnYAfm8QBmP22tThsNbNweGj+Qo6hNz5/a:++js57SFlnLDfhYAfLP22tThsIeGjY6

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

89.248.163.218:443

Signatures

SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
trojan systembc
Executes dropped EXE 1 IoCs

Processes:

kxlnr.exe

pid process

976 kxlnr.exe
Drops file in Windows directory 2 IoCs

Processes:

2288.exe

description ioc process

File created C:\Windows\Tasks\kxlnr.job 2288.exe
File opened for modification C:\Windows\Tasks\kxlnr.job 2288.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

2288.exe

pid process

2032 2288.exe

pid	process
976	kxlnr.exe

description	ioc	process
File created	C:\Windows\Tasks\kxlnr.job	2288.exe
File opened for modification	C:\Windows\Tasks\kxlnr.job	2288.exe

pid	process
2032	2288.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

taskeng.exe

description	pid	process	target process
PID 1680 wrote to memory of 976	1680	taskeng.exe	kxlnr.exe
PID 1680 wrote to memory of 976	1680	taskeng.exe	kxlnr.exe
PID 1680 wrote to memory of 976	1680	taskeng.exe	kxlnr.exe
PID 1680 wrote to memory of 976	1680	taskeng.exe	kxlnr.exe

C:\Users\Admin\AppData\Local\Temp\2288.exe
"C:\Users\Admin\AppData\Local\Temp\2288.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:2032

C:\Windows\system32\taskeng.exe
taskeng.exe {BB91848E-F31F-471B-8947-76F3CBFF86ED} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:1680

C:\ProgramData\icplu\kxlnr.exe
C:\ProgramData\icplu\kxlnr.exe start
2⤵
- Executes dropped EXE
PID:976

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\ProgramData\icplu\kxlnr.exe

Filesize
303KB

MD5
a91d1ad4f99dc142a63342a79a04a61c

SHA1
9328310f5567fc7247516d21f339fb99b67706be

SHA256
2c3fade9317146109c3dad7e9e06168a2af28d04185c248a3322cd8b8ae8901f

SHA512
f869c9568afb90bec12732ce55552e66fe1dc2f9a52212a8011e2509805bfc59574ecbe4f52144ed8bde0b240849816cdb261ccefcb9d00f1ba65f0daa9cc39a

Download Submit
C:\ProgramData\icplu\kxlnr.exe

Filesize
303KB

MD5
a91d1ad4f99dc142a63342a79a04a61c

SHA1
9328310f5567fc7247516d21f339fb99b67706be

SHA256
2c3fade9317146109c3dad7e9e06168a2af28d04185c248a3322cd8b8ae8901f

SHA512
f869c9568afb90bec12732ce55552e66fe1dc2f9a52212a8011e2509805bfc59574ecbe4f52144ed8bde0b240849816cdb261ccefcb9d00f1ba65f0daa9cc39a

Download Submit
memory/976-59-0x0000000000000000-mapping.dmp

Download
memory/976-63-0x00000000002AC000-0x00000000002C1000-memory.dmp

Filesize
84KB

Download
memory/976-64-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/976-65-0x00000000002AC000-0x00000000002C1000-memory.dmp

Filesize
84KB

Download
memory/2032-54-0x00000000766D1000-0x00000000766D3000-memory.dmp

Filesize
8KB

Download
memory/2032-56-0x00000000001B0000-0x00000000001B9000-memory.dmp

Filesize
36KB

Download
memory/2032-55-0x00000000002EC000-0x0000000000301000-memory.dmp

Filesize
84KB

Download
memory/2032-57-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2032-61-0x00000000002EC000-0x0000000000301000-memory.dmp

Filesize
84KB

Download