systembc | 71c37b1d53f487f7b8c025ab8b3aca6635e3d1555b5961a5c9b56bbbeca9888f

Analysis

max time kernel
119s
max time network
34s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
25-12-2022 07:49

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General

Target

a0be0fc03b5e4097a0a60f89afd3ea9c.exe
Size

375KB
MD5

a0be0fc03b5e4097a0a60f89afd3ea9c
SHA1

dae6c080f184ffe61e62931084cef68a5e45dbb7
SHA256

71c37b1d53f487f7b8c025ab8b3aca6635e3d1555b5961a5c9b56bbbeca9888f
SHA512

0596fa6739a36d3505d821a7144ec90ed288a0b25667fdd5a0aad2491ba24c9118c55d4530d3636236685870c99c2603259cded573548b178d63f3c4c6cf851e
SSDEEP

6144:0bKbnMYcwtusRIUA3ku18D5kebj/juUe4WV5s+gVRfvV3PxD:0bgnFcoRIUMku18D9jrpzWV5JOfvhPd

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

rupertok.su:4083

podisong.su:4083

Signatures

SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
trojan systembc
Executes dropped EXE 2 IoCs

Processes:

kxhbc.exekxhbc.exe

pid process

684 kxhbc.exe
1488 kxhbc.exe

pid	process
684	kxhbc.exe
1488	kxhbc.exe

Drops file in Windows directory 2 IoCs

Processes:

a0be0fc03b5e4097a0a60f89afd3ea9c.exe

description	ioc	process
File created	C:\Windows\Tasks\kxhbc.job	a0be0fc03b5e4097a0a60f89afd3ea9c.exe
File opened for modification	C:\Windows\Tasks\kxhbc.job	a0be0fc03b5e4097a0a60f89afd3ea9c.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

a0be0fc03b5e4097a0a60f89afd3ea9c.exe

pid process

604 a0be0fc03b5e4097a0a60f89afd3ea9c.exe

pid	process
604	a0be0fc03b5e4097a0a60f89afd3ea9c.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

taskeng.exe

description	pid	process	target process
PID 936 wrote to memory of 684	936	taskeng.exe	kxhbc.exe
PID 936 wrote to memory of 684	936	taskeng.exe	kxhbc.exe
PID 936 wrote to memory of 684	936	taskeng.exe	kxhbc.exe
PID 936 wrote to memory of 684	936	taskeng.exe	kxhbc.exe
PID 936 wrote to memory of 1488	936	taskeng.exe	kxhbc.exe
PID 936 wrote to memory of 1488	936	taskeng.exe	kxhbc.exe
PID 936 wrote to memory of 1488	936	taskeng.exe	kxhbc.exe
PID 936 wrote to memory of 1488	936	taskeng.exe	kxhbc.exe

C:\Users\Admin\AppData\Local\Temp\a0be0fc03b5e4097a0a60f89afd3ea9c.exe
"C:\Users\Admin\AppData\Local\Temp\a0be0fc03b5e4097a0a60f89afd3ea9c.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:604

C:\Windows\system32\taskeng.exe
taskeng.exe {167B7BA6-06B9-477A-A5A6-2F3846B2D114} S-1-5-21-3406023954-474543476-3319432036-1000:VUIIVLGQ\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:936

C:\ProgramData\tqboeb\kxhbc.exe
C:\ProgramData\tqboeb\kxhbc.exe start2
2⤵
- Executes dropped EXE
PID:684

C:\ProgramData\tqboeb\kxhbc.exe
C:\ProgramData\tqboeb\kxhbc.exe start2
2⤵
- Executes dropped EXE
PID:1488

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\ProgramData\tqboeb\kxhbc.exe
Filesize
375KB

MD5
a0be0fc03b5e4097a0a60f89afd3ea9c

SHA1
dae6c080f184ffe61e62931084cef68a5e45dbb7

SHA256
71c37b1d53f487f7b8c025ab8b3aca6635e3d1555b5961a5c9b56bbbeca9888f

SHA512
0596fa6739a36d3505d821a7144ec90ed288a0b25667fdd5a0aad2491ba24c9118c55d4530d3636236685870c99c2603259cded573548b178d63f3c4c6cf851e

Download Submit
C:\ProgramData\tqboeb\kxhbc.exe
Filesize
375KB

MD5
a0be0fc03b5e4097a0a60f89afd3ea9c

SHA1
dae6c080f184ffe61e62931084cef68a5e45dbb7

SHA256
71c37b1d53f487f7b8c025ab8b3aca6635e3d1555b5961a5c9b56bbbeca9888f

SHA512
0596fa6739a36d3505d821a7144ec90ed288a0b25667fdd5a0aad2491ba24c9118c55d4530d3636236685870c99c2603259cded573548b178d63f3c4c6cf851e

Download Submit
C:\ProgramData\tqboeb\kxhbc.exe
Filesize
375KB

MD5
a0be0fc03b5e4097a0a60f89afd3ea9c

SHA1
dae6c080f184ffe61e62931084cef68a5e45dbb7

SHA256
71c37b1d53f487f7b8c025ab8b3aca6635e3d1555b5961a5c9b56bbbeca9888f

SHA512
0596fa6739a36d3505d821a7144ec90ed288a0b25667fdd5a0aad2491ba24c9118c55d4530d3636236685870c99c2603259cded573548b178d63f3c4c6cf851e

Download Submit
memory/604-58-0x0000000000400000-0x00000000062E4000-memory.dmp

Filesize
94.9MB

Download
memory/604-54-0x00000000064B3000-0x00000000064B9000-memory.dmp

Filesize
24KB

Download
memory/604-56-0x00000000064B3000-0x00000000064B9000-memory.dmp

Filesize
24KB

Download
memory/604-57-0x0000000000230000-0x0000000000235000-memory.dmp

Filesize
20KB

Download
memory/604-55-0x00000000757E1000-0x00000000757E3000-memory.dmp

Filesize
8KB

Download
memory/684-60-0x0000000000000000-mapping.dmp

Download
memory/684-62-0x00000000063D3000-0x00000000063D9000-memory.dmp

Filesize
24KB

Download
memory/684-64-0x00000000063D3000-0x00000000063D9000-memory.dmp

Filesize
24KB

Download
memory/684-65-0x0000000000400000-0x00000000062E4000-memory.dmp

Filesize
94.9MB

Download
memory/1488-66-0x0000000000000000-mapping.dmp

Download
memory/1488-68-0x00000000002D3000-0x00000000002D9000-memory.dmp

Filesize
24KB

Download
memory/1488-70-0x00000000002D3000-0x00000000002D9000-memory.dmp

Filesize
24KB

Download
memory/1488-71-0x0000000000400000-0x00000000062E4000-memory.dmp

Filesize
94.9MB

Download