systembc | 7180bbdc3ec4a9ce298d39e9ecf5bfb1e818f749299cb5ebeb00e60503798478

General

Target

7180bbdc3ec4a9ce298d39e9ecf5bfb1e818f749299cb5ebeb00e60503798478.exe
Size

308KB
MD5

1316e7d18ac7d4f2b00115ce31b7cc32
SHA1

8012ac64c5bbd3e0c93bcc9f3aa4d72dad4acd26
SHA256

7180bbdc3ec4a9ce298d39e9ecf5bfb1e818f749299cb5ebeb00e60503798478
SHA512

315c117c212e8a764db4f9c233052dfa826df25faee603e82c5beb744ad15ea6eabb6703b497675dcdf752993481ce4a36fbd2d8730b36bf2a125b243bf5c4c2

Score

10^/10

systembc suricata trojan

Malware Config

Extracted

Family

systembc

C2

advertrex20.xyz:4044

gentexman37.xyz:4044

Signatures

SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
trojan systembc
suricata: ET MALWARE Observed SystemBC CnC Domain in DNS Query
suricata: ET MALWARE Observed SystemBC CnC Domain in DNS Query
suricata
Executes dropped EXE 1 IoCs

Processes:

auhnqv.exe

pid process

1288 auhnqv.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

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

Connection Proxy
T1090

pid	process
1288	auhnqv.exe

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

Drops file in Windows directory 2 IoCs

Processes:

7180bbdc3ec4a9ce298d39e9ecf5bfb1e818f749299cb5ebeb00e60503798478.exe

description	ioc	process
File created	C:\Windows\Tasks\auhnqv.job	7180bbdc3ec4a9ce298d39e9ecf5bfb1e818f749299cb5ebeb00e60503798478.exe
File opened for modification	C:\Windows\Tasks\auhnqv.job	7180bbdc3ec4a9ce298d39e9ecf5bfb1e818f749299cb5ebeb00e60503798478.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

7180bbdc3ec4a9ce298d39e9ecf5bfb1e818f749299cb5ebeb00e60503798478.exe

pid process

1960 7180bbdc3ec4a9ce298d39e9ecf5bfb1e818f749299cb5ebeb00e60503798478.exe

pid	process
1960	7180bbdc3ec4a9ce298d39e9ecf5bfb1e818f749299cb5ebeb00e60503798478.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

taskeng.exe

description	pid	process	target process
PID 1972 wrote to memory of 1288	1972	taskeng.exe	auhnqv.exe
PID 1972 wrote to memory of 1288	1972	taskeng.exe	auhnqv.exe
PID 1972 wrote to memory of 1288	1972	taskeng.exe	auhnqv.exe
PID 1972 wrote to memory of 1288	1972	taskeng.exe	auhnqv.exe

C:\Users\Admin\AppData\Local\Temp\7180bbdc3ec4a9ce298d39e9ecf5bfb1e818f749299cb5ebeb00e60503798478.exe
"C:\Users\Admin\AppData\Local\Temp\7180bbdc3ec4a9ce298d39e9ecf5bfb1e818f749299cb5ebeb00e60503798478.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:1960

C:\Windows\system32\taskeng.exe
taskeng.exe {11F752C9-D602-41D0-BC11-82A84DBC1569} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:1972
- C:\ProgramData\ovesn\auhnqv.exe
  C:\ProgramData\ovesn\auhnqv.exe start
  2⤵
  - Executes dropped EXE
  PID:1288

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Connection Proxy

1

T1090

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Connection Proxy

1

T1090

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\ovesn\auhnqv.exe

Filesize
308KB

MD5
1316e7d18ac7d4f2b00115ce31b7cc32

SHA1
8012ac64c5bbd3e0c93bcc9f3aa4d72dad4acd26

SHA256
7180bbdc3ec4a9ce298d39e9ecf5bfb1e818f749299cb5ebeb00e60503798478

SHA512
315c117c212e8a764db4f9c233052dfa826df25faee603e82c5beb744ad15ea6eabb6703b497675dcdf752993481ce4a36fbd2d8730b36bf2a125b243bf5c4c2

Download Submit
C:\ProgramData\ovesn\auhnqv.exe

Filesize
308KB

MD5
1316e7d18ac7d4f2b00115ce31b7cc32

SHA1
8012ac64c5bbd3e0c93bcc9f3aa4d72dad4acd26

SHA256
7180bbdc3ec4a9ce298d39e9ecf5bfb1e818f749299cb5ebeb00e60503798478

SHA512
315c117c212e8a764db4f9c233052dfa826df25faee603e82c5beb744ad15ea6eabb6703b497675dcdf752993481ce4a36fbd2d8730b36bf2a125b243bf5c4c2

Download Submit
memory/1288-59-0x0000000000000000-mapping.dmp

Download
memory/1288-62-0x0000000000400000-0x00000000004E0000-memory.dmp

Filesize
896KB

Download
memory/1960-54-0x0000000075D61000-0x0000000075D63000-memory.dmp

Filesize
8KB

Download
memory/1960-55-0x0000000000220000-0x0000000000226000-memory.dmp

Filesize
24KB

Download
memory/1960-56-0x0000000000230000-0x0000000000239000-memory.dmp

Filesize
36KB

Download
memory/1960-57-0x0000000000400000-0x00000000004E0000-memory.dmp

Filesize
896KB

Download

Analysis

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