systembc | 0b0466996b77c223295a05899525df93489cfda27c7c95b78bec4c6a595629d5

Resubmissions

07/05/2024, 12:39

240507-pvlldaga5110

07/05/2024, 12:38

07/05/2024, 12:38

07/05/2024, 12:38

07/05/2024, 12:38

25/04/2024, 12:54

Analysis

max time kernel
143s
max time network
144s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
07/05/2024, 12:38

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
0b0466996b77c223295a05899525df93489cfda27c7c95b78bec4c6a595629d5.exe
Size 30KB
Sample240507-pvd7asaf44
SHA256 0b0466996b77c223295a05899525df93489cfda27c7c95b78bec4c6a595629d5
MD5 87968a631411cdf26058e8ae5a0902a5
SHA1 a09dc0e8855780430d10811834da6504eb1d72ad
SHA512 07ce6246217a61085ae0ab7a6fade6429d7d946c4970ce79c1a7e22e1fc5f15949a09a0b04ec5bdc00cfd7bb5b11b6cfc5d8fbc9a3f39875443a1bbe7301644e
SSDEEP 768:4TwkPr8C6fuFdaAna6DCPt34GuYY92rjnPoJlvcaII1:MV8C6fuFdaz6+O1n2rjnPo7
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

pzlkxadvert475.xyz:4044
pzfdmserv275.xyz:4044

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
3064	ehwnjs.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.

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

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

Proxy
T1090

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\ehwnjs.job	0b0466996b77c223295a05899525df93489cfda27c7c95b78bec4c6a595629d5.exe
File opened for modification	C:\Windows\Tasks\ehwnjs.job	0b0466996b77c223295a05899525df93489cfda27c7c95b78bec4c6a595629d5.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1404	0b0466996b77c223295a05899525df93489cfda27c7c95b78bec4c6a595629d5.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2968 wrote to memory of 3064	2968	taskeng.exe	29
PID 2968 wrote to memory of 3064	2968	taskeng.exe	29
PID 2968 wrote to memory of 3064	2968	taskeng.exe	29
PID 2968 wrote to memory of 3064	2968	taskeng.exe	29

C:\Users\Admin\AppData\Local\Temp\0b0466996b77c223295a05899525df93489cfda27c7c95b78bec4c6a595629d5.exe
"C:\Users\Admin\AppData\Local\Temp\0b0466996b77c223295a05899525df93489cfda27c7c95b78bec4c6a595629d5.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:1404

C:\Windows\system32\taskeng.exe
taskeng.exe {94E3E1E1-FC98-4117-B796-F9608E7FC94A} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:2968
- C:\ProgramData\qmtcj\ehwnjs.exe
  C:\ProgramData\qmtcj\ehwnjs.exe start
  2⤵
  - Executes dropped EXE
  PID:3064

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

Loading Replay Monitor...

Downloads

ehwnjs.exe

Path C:\ProgramData\qmtcj\ehwnjs.exe
Size 30KB
SHA256 0b0466996b77c223295a05899525df93489cfda27c7c95b78bec4c6a595629d5
MD5 87968a631411cdf26058e8ae5a0902a5
SHA1 a09dc0e8855780430d10811834da6504eb1d72ad
SHA512 07ce6246217a61085ae0ab7a6fade6429d7d946c4970ce79c1a7e22e1fc5f15949a09a0b04ec5bdc00cfd7bb5b11b6cfc5d8fbc9a3f39875443a1bbe7301644e
SSDEEP 768:4TwkPr8C6fuFdaAna6DCPt34GuYY92rjnPoJlvcaII1:MV8C6fuFdaz6+O1n2rjnPo7
MD5 SHA1 SHA512 SSDEEP

Submit Download