systembc | 318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd

General

Target

318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe
Size

350KB
MD5

0dc61438b79668900bd081bac6109760
SHA1

2ee66fd972c2d28ad30775971ba95056951910f0
SHA256

318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd
SHA512

467b352ce6188e6126050c229cd47b526e83ef3535449c3f02b70491e159523d7cc8ebb28caab4e8d98627a22a0af1faf13b134072309dfe56ad175d18177ca7
SSDEEP

6144:RoX0oZ+rm/OV6ZH7XYuB4xpuMadbr2X3f+gOkXdhFr:Ry0xrm/h7XYuWCMaV2XWgO8hFr

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

C2

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 6 IoCs

Processes:

uqfomki.exeuqfomki.exeuqfomki.exeuqfomki.exeuqfomki.exeuqfomki.exe

pid process

2684 uqfomki.exe
2708 uqfomki.exe
1672 uqfomki.exe
1040 uqfomki.exe
1248 uqfomki.exe
912 uqfomki.exe
Looks up external IP address via web service 4 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

6 api.ipify.org
7 ip4.seeip.org
8 ip4.seeip.org
5 api.ipify.org
Uses Tor communications 1 TTPs
Malware can proxy its traffic through Tor for more anonymity.

Proxy
T1090

pid	process
2684	uqfomki.exe
2708	uqfomki.exe
1672	uqfomki.exe
1040	uqfomki.exe
1248	uqfomki.exe
912	uqfomki.exe

flow	ioc
6	api.ipify.org
7	ip4.seeip.org
8	ip4.seeip.org
5	api.ipify.org

Suspicious use of SetThreadContext 4 IoCs

Processes:

318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exeuqfomki.exeuqfomki.exeuqfomki.exe

description	pid	process	target process
PID 1796 set thread context of 2380	1796	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe
PID 2684 set thread context of 2708	2684	uqfomki.exe	uqfomki.exe
PID 1672 set thread context of 1040	1672	uqfomki.exe	uqfomki.exe
PID 1248 set thread context of 912	1248	uqfomki.exe	uqfomki.exe

Drops file in Windows directory 2 IoCs

Processes:

318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe

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

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe

pid process

2380 318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe

pid	process
2380	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe

Suspicious use of WriteProcessMemory 52 IoCs

Processes:

318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exetaskeng.exeuqfomki.exeuqfomki.exeuqfomki.exe

description	pid	process	target process
PID 1796 wrote to memory of 2380	1796	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe
PID 1796 wrote to memory of 2380	1796	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe
PID 1796 wrote to memory of 2380	1796	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe
PID 1796 wrote to memory of 2380	1796	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe
PID 1796 wrote to memory of 2380	1796	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe
PID 1796 wrote to memory of 2380	1796	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe
PID 1796 wrote to memory of 2380	1796	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe
PID 1796 wrote to memory of 2380	1796	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe
PID 1796 wrote to memory of 2380	1796	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe
PID 1796 wrote to memory of 2380	1796	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe	318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd.exe
PID 2308 wrote to memory of 2684	2308	taskeng.exe	uqfomki.exe
PID 2308 wrote to memory of 2684	2308	taskeng.exe	uqfomki.exe
PID 2308 wrote to memory of 2684	2308	taskeng.exe	uqfomki.exe
PID 2308 wrote to memory of 2684	2308	taskeng.exe	uqfomki.exe
PID 2684 wrote to memory of 2708	2684	uqfomki.exe	uqfomki.exe
PID 2684 wrote to memory of 2708	2684	uqfomki.exe	uqfomki.exe
PID 2684 wrote to memory of 2708	2684	uqfomki.exe	uqfomki.exe
PID 2684 wrote to memory of 2708	2684	uqfomki.exe	uqfomki.exe
PID 2684 wrote to memory of 2708	2684	uqfomki.exe	uqfomki.exe
PID 2684 wrote to memory of 2708	2684	uqfomki.exe	uqfomki.exe
PID 2684 wrote to memory of 2708	2684	uqfomki.exe	uqfomki.exe
PID 2684 wrote to memory of 2708	2684	uqfomki.exe	uqfomki.exe
PID 2684 wrote to memory of 2708	2684	uqfomki.exe	uqfomki.exe
PID 2684 wrote to memory of 2708	2684	uqfomki.exe	uqfomki.exe
PID 2308 wrote to memory of 1672	2308	taskeng.exe	uqfomki.exe
PID 2308 wrote to memory of 1672	2308	taskeng.exe	uqfomki.exe
PID 2308 wrote to memory of 1672	2308	taskeng.exe	uqfomki.exe
PID 2308 wrote to memory of 1672	2308	taskeng.exe	uqfomki.exe
PID 1672 wrote to memory of 1040	1672	uqfomki.exe	uqfomki.exe
PID 1672 wrote to memory of 1040	1672	uqfomki.exe	uqfomki.exe
PID 1672 wrote to memory of 1040	1672	uqfomki.exe	uqfomki.exe
PID 1672 wrote to memory of 1040	1672	uqfomki.exe	uqfomki.exe
PID 1672 wrote to memory of 1040	1672	uqfomki.exe	uqfomki.exe
PID 1672 wrote to memory of 1040	1672	uqfomki.exe	uqfomki.exe
PID 1672 wrote to memory of 1040	1672	uqfomki.exe	uqfomki.exe
PID 1672 wrote to memory of 1040	1672	uqfomki.exe	uqfomki.exe
PID 1672 wrote to memory of 1040	1672	uqfomki.exe	uqfomki.exe
PID 1672 wrote to memory of 1040	1672	uqfomki.exe	uqfomki.exe
PID 2308 wrote to memory of 1248	2308	taskeng.exe	uqfomki.exe
PID 2308 wrote to memory of 1248	2308	taskeng.exe	uqfomki.exe
PID 2308 wrote to memory of 1248	2308	taskeng.exe	uqfomki.exe
PID 2308 wrote to memory of 1248	2308	taskeng.exe	uqfomki.exe
PID 1248 wrote to memory of 912	1248	uqfomki.exe	uqfomki.exe
PID 1248 wrote to memory of 912	1248	uqfomki.exe	uqfomki.exe
PID 1248 wrote to memory of 912	1248	uqfomki.exe	uqfomki.exe
PID 1248 wrote to memory of 912	1248	uqfomki.exe	uqfomki.exe
PID 1248 wrote to memory of 912	1248	uqfomki.exe	uqfomki.exe
PID 1248 wrote to memory of 912	1248	uqfomki.exe	uqfomki.exe
PID 1248 wrote to memory of 912	1248	uqfomki.exe	uqfomki.exe
PID 1248 wrote to memory of 912	1248	uqfomki.exe	uqfomki.exe
PID 1248 wrote to memory of 912	1248	uqfomki.exe	uqfomki.exe
PID 1248 wrote to memory of 912	1248	uqfomki.exe	uqfomki.exe

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:1796
- 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:2380

C:\Windows\system32\taskeng.exe
taskeng.exe {31503EF3-9D88-45CD-AEAA-635CAD9540B1} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:2308
- C:\ProgramData\cuaesim\uqfomki.exe
  C:\ProgramData\cuaesim\uqfomki.exe start
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2684
- - C:\ProgramData\cuaesim\uqfomki.exe
    C:\ProgramData\cuaesim\uqfomki.exe start
    3⤵
    - Executes dropped EXE
    PID:2708
- C:\ProgramData\cuaesim\uqfomki.exe
  C:\ProgramData\cuaesim\uqfomki.exe start
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1672
- - C:\ProgramData\cuaesim\uqfomki.exe
    C:\ProgramData\cuaesim\uqfomki.exe start
    3⤵
    - Executes dropped EXE
    PID:1040
- C:\ProgramData\cuaesim\uqfomki.exe
  C:\ProgramData\cuaesim\uqfomki.exe start
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1248
- - C:\ProgramData\cuaesim\uqfomki.exe
    C:\ProgramData\cuaesim\uqfomki.exe start
    3⤵
    - Executes dropped EXE
    PID:912

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

1

T1090

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\cuaesim\uqfomki.exe

Filesize
350KB

MD5
0dc61438b79668900bd081bac6109760

SHA1
2ee66fd972c2d28ad30775971ba95056951910f0

SHA256
318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd

SHA512
467b352ce6188e6126050c229cd47b526e83ef3535449c3f02b70491e159523d7cc8ebb28caab4e8d98627a22a0af1faf13b134072309dfe56ad175d18177ca7

Download Submit
memory/1248-74-0x0000000000CD0000-0x0000000000DD0000-memory.dmp

Filesize
1024KB

Download
memory/1672-47-0x00000000002F1000-0x00000000002F7000-memory.dmp

Filesize
24KB

Download
memory/1796-4-0x00000000010A0000-0x00000000011A0000-memory.dmp

Filesize
1024KB

Download
memory/1796-5-0x0000000000020000-0x000000000002A000-memory.dmp

Filesize
40KB

Download
memory/2380-1-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2380-3-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2380-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2380-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2684-21-0x0000000000D41000-0x0000000000D47000-memory.dmp

Filesize
24KB

Download
memory/2708-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads