systembc | 318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd

Resubmissions

18/04/2024, 11:20

240418-nfk6macg3w10

18/04/2024, 11:20

18/04/2024, 11:20

18/04/2024, 11:20

18/04/2024, 11:20

18/04/2024, 09:59

Analysis

max time kernel
1199s
max time network
1193s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
18/04/2024, 11:20

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General

Target
318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe
Size 350KB
Sample240418-nfheqsbd89
SHA256 318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd
MD5 0dc61438b79668900bd081bac6109760
SHA1 2ee66fd972c2d28ad30775971ba95056951910f0
SHA512 467b352ce6188e6126050c229cd47b526e83ef3535449c3f02b70491e159523d7cc8ebb28caab4e8d98627a22a0af1faf13b134072309dfe56ad175d18177ca7
SSDEEP 6144:RoX0oZ+rm/OV6ZH7XYuB4xpuMadbr2X3f+gOkXdhFr:Ry0xrm/h7XYuWCMaV2XWgO8hFr
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

knock0909.monster:4035
knock0909.xyz:4035

Signatures

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

Executes dropped EXE 22 IoCs

pid	Process
3880	ufsigcx.exe
3928	ufsigcx.exe
1488	ufsigcx.exe
1108	ufsigcx.exe
1648	ufsigcx.exe
3404	ufsigcx.exe
4044	ufsigcx.exe
4984	ufsigcx.exe
3604	ufsigcx.exe
1480	ufsigcx.exe
4524	ufsigcx.exe
1952	ufsigcx.exe
3884	ufsigcx.exe
4028	ufsigcx.exe
5084	ufsigcx.exe
2160	ufsigcx.exe
1436	ufsigcx.exe
2288	ufsigcx.exe
1464	ufsigcx.exe
4280	ufsigcx.exe
816	ufsigcx.exe
2464	ufsigcx.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
5	api.ipify.org
6	api.ipify.org

Uses Tor communications 1 TTPs
Malware can proxy its traffic through Tor for more anonymity.

Proxy
T1090

Suspicious use of SetThreadContext 12 IoCs

description	pid	Process	procid_target
PID 2088 set thread context of 5052	2088	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	86
PID 3880 set thread context of 3928	3880	ufsigcx.exe	88
PID 1488 set thread context of 1108	1488	ufsigcx.exe	100
PID 1648 set thread context of 3404	1648	ufsigcx.exe	102
PID 4044 set thread context of 4984	4044	ufsigcx.exe	104
PID 3604 set thread context of 1480	3604	ufsigcx.exe	106
PID 4524 set thread context of 1952	4524	ufsigcx.exe	108
PID 3884 set thread context of 4028	3884	ufsigcx.exe	110
PID 5084 set thread context of 2160	5084	ufsigcx.exe	112
PID 1436 set thread context of 2288	1436	ufsigcx.exe	114
PID 1464 set thread context of 4280	1464	ufsigcx.exe	116
PID 816 set thread context of 2464	816	ufsigcx.exe	118

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\ufsigcx.job	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe
File opened for modification	C:\Windows\Tasks\ufsigcx.job	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5052	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe
5052	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2088 wrote to memory of 5052	2088	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	86
PID 2088 wrote to memory of 5052	2088	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	86
PID 2088 wrote to memory of 5052	2088	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	86
PID 2088 wrote to memory of 5052	2088	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	86
PID 2088 wrote to memory of 5052	2088	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	86
PID 2088 wrote to memory of 5052	2088	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	86
PID 2088 wrote to memory of 5052	2088	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	86
PID 2088 wrote to memory of 5052	2088	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	86
PID 2088 wrote to memory of 5052	2088	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	86
PID 3880 wrote to memory of 3928	3880	ufsigcx.exe	88
PID 3880 wrote to memory of 3928	3880	ufsigcx.exe	88
PID 3880 wrote to memory of 3928	3880	ufsigcx.exe	88
PID 3880 wrote to memory of 3928	3880	ufsigcx.exe	88
PID 3880 wrote to memory of 3928	3880	ufsigcx.exe	88
PID 3880 wrote to memory of 3928	3880	ufsigcx.exe	88
PID 3880 wrote to memory of 3928	3880	ufsigcx.exe	88
PID 3880 wrote to memory of 3928	3880	ufsigcx.exe	88
PID 3880 wrote to memory of 3928	3880	ufsigcx.exe	88
PID 1488 wrote to memory of 1108	1488	ufsigcx.exe	100
PID 1488 wrote to memory of 1108	1488	ufsigcx.exe	100
PID 1488 wrote to memory of 1108	1488	ufsigcx.exe	100
PID 1488 wrote to memory of 1108	1488	ufsigcx.exe	100
PID 1488 wrote to memory of 1108	1488	ufsigcx.exe	100
PID 1488 wrote to memory of 1108	1488	ufsigcx.exe	100
PID 1488 wrote to memory of 1108	1488	ufsigcx.exe	100
PID 1488 wrote to memory of 1108	1488	ufsigcx.exe	100
PID 1488 wrote to memory of 1108	1488	ufsigcx.exe	100
PID 1648 wrote to memory of 3404	1648	ufsigcx.exe	102
PID 1648 wrote to memory of 3404	1648	ufsigcx.exe	102
PID 1648 wrote to memory of 3404	1648	ufsigcx.exe	102
PID 1648 wrote to memory of 3404	1648	ufsigcx.exe	102
PID 1648 wrote to memory of 3404	1648	ufsigcx.exe	102
PID 1648 wrote to memory of 3404	1648	ufsigcx.exe	102
PID 1648 wrote to memory of 3404	1648	ufsigcx.exe	102
PID 1648 wrote to memory of 3404	1648	ufsigcx.exe	102
PID 1648 wrote to memory of 3404	1648	ufsigcx.exe	102
PID 4044 wrote to memory of 4984	4044	ufsigcx.exe	104
PID 4044 wrote to memory of 4984	4044	ufsigcx.exe	104
PID 4044 wrote to memory of 4984	4044	ufsigcx.exe	104
PID 4044 wrote to memory of 4984	4044	ufsigcx.exe	104
PID 4044 wrote to memory of 4984	4044	ufsigcx.exe	104
PID 4044 wrote to memory of 4984	4044	ufsigcx.exe	104
PID 4044 wrote to memory of 4984	4044	ufsigcx.exe	104
PID 4044 wrote to memory of 4984	4044	ufsigcx.exe	104
PID 4044 wrote to memory of 4984	4044	ufsigcx.exe	104
PID 3604 wrote to memory of 1480	3604	ufsigcx.exe	106
PID 3604 wrote to memory of 1480	3604	ufsigcx.exe	106
PID 3604 wrote to memory of 1480	3604	ufsigcx.exe	106
PID 3604 wrote to memory of 1480	3604	ufsigcx.exe	106
PID 3604 wrote to memory of 1480	3604	ufsigcx.exe	106
PID 3604 wrote to memory of 1480	3604	ufsigcx.exe	106
PID 3604 wrote to memory of 1480	3604	ufsigcx.exe	106
PID 3604 wrote to memory of 1480	3604	ufsigcx.exe	106
PID 3604 wrote to memory of 1480	3604	ufsigcx.exe	106
PID 4524 wrote to memory of 1952	4524	ufsigcx.exe	108
PID 4524 wrote to memory of 1952	4524	ufsigcx.exe	108
PID 4524 wrote to memory of 1952	4524	ufsigcx.exe	108
PID 4524 wrote to memory of 1952	4524	ufsigcx.exe	108
PID 4524 wrote to memory of 1952	4524	ufsigcx.exe	108
PID 4524 wrote to memory of 1952	4524	ufsigcx.exe	108
PID 4524 wrote to memory of 1952	4524	ufsigcx.exe	108
PID 4524 wrote to memory of 1952	4524	ufsigcx.exe	108
PID 4524 wrote to memory of 1952	4524	ufsigcx.exe	108
PID 3884 wrote to memory of 4028	3884	ufsigcx.exe	110

C:\Users\Admin\AppData\Local\Temp\318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe
"C:\Users\Admin\AppData\Local\Temp\318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2088
- C:\Users\Admin\AppData\Local\Temp\318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe
  "C:\Users\Admin\AppData\Local\Temp\318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe"
  2⤵
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  PID:5052

C:\ProgramData\bnaglrx\ufsigcx.exe
C:\ProgramData\bnaglrx\ufsigcx.exe start
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3880
- C:\ProgramData\bnaglrx\ufsigcx.exe
  C:\ProgramData\bnaglrx\ufsigcx.exe start
  2⤵
  - Executes dropped EXE
  PID:3928

C:\ProgramData\bnaglrx\ufsigcx.exe
C:\ProgramData\bnaglrx\ufsigcx.exe start
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1488
- C:\ProgramData\bnaglrx\ufsigcx.exe
  C:\ProgramData\bnaglrx\ufsigcx.exe start
  2⤵
  - Executes dropped EXE
  PID:1108

C:\ProgramData\bnaglrx\ufsigcx.exe
C:\ProgramData\bnaglrx\ufsigcx.exe start
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1648
- C:\ProgramData\bnaglrx\ufsigcx.exe
  C:\ProgramData\bnaglrx\ufsigcx.exe start
  2⤵
  - Executes dropped EXE
  PID:3404

C:\ProgramData\bnaglrx\ufsigcx.exe
C:\ProgramData\bnaglrx\ufsigcx.exe start
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4044
- C:\ProgramData\bnaglrx\ufsigcx.exe
  C:\ProgramData\bnaglrx\ufsigcx.exe start
  2⤵
  - Executes dropped EXE
  PID:4984

C:\ProgramData\bnaglrx\ufsigcx.exe
C:\ProgramData\bnaglrx\ufsigcx.exe start
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3604
- C:\ProgramData\bnaglrx\ufsigcx.exe
  C:\ProgramData\bnaglrx\ufsigcx.exe start
  2⤵
  - Executes dropped EXE
  PID:1480

C:\ProgramData\bnaglrx\ufsigcx.exe
C:\ProgramData\bnaglrx\ufsigcx.exe start
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4524
- C:\ProgramData\bnaglrx\ufsigcx.exe
  C:\ProgramData\bnaglrx\ufsigcx.exe start
  2⤵
  - Executes dropped EXE
  PID:1952

C:\ProgramData\bnaglrx\ufsigcx.exe
C:\ProgramData\bnaglrx\ufsigcx.exe start
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3884
- C:\ProgramData\bnaglrx\ufsigcx.exe
  C:\ProgramData\bnaglrx\ufsigcx.exe start
  2⤵
  - Executes dropped EXE
  PID:4028

C:\ProgramData\bnaglrx\ufsigcx.exe
C:\ProgramData\bnaglrx\ufsigcx.exe start
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
PID:5084
- C:\ProgramData\bnaglrx\ufsigcx.exe
  C:\ProgramData\bnaglrx\ufsigcx.exe start
  2⤵
  - Executes dropped EXE
  PID:2160

C:\ProgramData\bnaglrx\ufsigcx.exe
C:\ProgramData\bnaglrx\ufsigcx.exe start
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
PID:1436
- C:\ProgramData\bnaglrx\ufsigcx.exe
  C:\ProgramData\bnaglrx\ufsigcx.exe start
  2⤵
  - Executes dropped EXE
  PID:2288

C:\ProgramData\bnaglrx\ufsigcx.exe
C:\ProgramData\bnaglrx\ufsigcx.exe start
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
PID:1464
- C:\ProgramData\bnaglrx\ufsigcx.exe
  C:\ProgramData\bnaglrx\ufsigcx.exe start
  2⤵
  - Executes dropped EXE
  PID:4280

C:\ProgramData\bnaglrx\ufsigcx.exe
C:\ProgramData\bnaglrx\ufsigcx.exe start
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
PID:816
- C:\ProgramData\bnaglrx\ufsigcx.exe
  C:\ProgramData\bnaglrx\ufsigcx.exe start
  2⤵
  - Executes dropped EXE
  PID:2464

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Proxy

T1090

Exfiltration

Impact

Replay Monitor

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Downloads

ufsigcx.exe

Path C:\ProgramData\bnaglrx\ufsigcx.exe
Size 350KB
SHA256 318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd
MD5 0dc61438b79668900bd081bac6109760
SHA1 2ee66fd972c2d28ad30775971ba95056951910f0
SHA512 467b352ce6188e6126050c229cd47b526e83ef3535449c3f02b70491e159523d7cc8ebb28caab4e8d98627a22a0af1faf13b134072309dfe56ad175d18177ca7
SSDEEP 6144:RoX0oZ+rm/OV6ZH7XYuB4xpuMadbr2X3f+gOkXdhFr:Ry0xrm/h7XYuWCMaV2XWgO8hFr
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/816-281-0x0000000000DF0000-0x0000000000EF0000-memory.dmp

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memory/1436-227-0x0000000000F20000-0x0000000001020000-memory.dmp

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memory/1464-254-0x0000000000E90000-0x0000000000F90000-memory.dmp

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memory/1488-38-0x0000000000DB0000-0x0000000000EB0000-memory.dmp

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memory/1648-65-0x0000000000E40000-0x0000000000F40000-memory.dmp

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memory/2088-2-0x0000000000C80000-0x0000000000C8A000-memory.dmp

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memory/2088-1-0x0000000000DA0000-0x0000000000EA0000-memory.dmp

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memory/3604-119-0x0000000000F30000-0x0000000001030000-memory.dmp

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memory/3880-16-0x0000000000D00000-0x0000000000E00000-memory.dmp

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memory/3884-173-0x0000000000E90000-0x0000000000F90000-memory.dmp

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memory/4044-94-0x0000000000ED0000-0x0000000000FD0000-memory.dmp

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memory/4524-146-0x0000000000D80000-0x0000000000E80000-memory.dmp

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memory/5052-7-0x0000000000400000-0x000000000040B000-memory.dmp

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memory/5052-5-0x0000000000400000-0x000000000040B000-memory.dmp

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memory/5052-3-0x0000000000400000-0x000000000040B000-memory.dmp

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memory/5084-200-0x0000000000CE0000-0x0000000000DE0000-memory.dmp

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