Behavioral Report

Analysis

max time kernel
158s
max time network
164s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
27-04-2022 17:55

Sharing

Copy URL

Twitter E-mail

Report Files Registry Network Processes Mutex Misc

General

Target

da1d1f735f97bf6ec7b008e135196afd97fd0f8884ddb7526df6be626453c3c8.exe
Size

87KB
MD5

6852984ac451a05e24c746a7beae2f7e
SHA1

647d364e9c10453271d21d4de892ccdbc1ec938e
SHA256

da1d1f735f97bf6ec7b008e135196afd97fd0f8884ddb7526df6be626453c3c8
SHA512

c03b55e314da300fd769cac02465b22c0317dfd4c445e6c9c36dd2c68cea7045ceefd872b295772fc6aa3cab6e604a4f170067d3e4ff2295ccd6109b1e735220

Score

10^/10

systembc suricata trojan

Malware Config

Extracted

Family	systembc
C2	asdasd08.com:4039 asdasd08.xyz:4039 asdasd08.com:4039 asdasd08.xyz:4039

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:

rihv.exe

pid process

2612 rihv.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.

Processes:

flow ioc

71 api.ipify.org
72 api.ipify.org
Uses Tor communications ⋅ 1 TTPs
Malware can proxy its traffic through Tor for more anonymity.

TTPs:

Connection Proxy

pid	process
2612	rihv.exe

flow	ioc
71	api.ipify.org
72	api.ipify.org

Drops file in Windows directory ⋅ 2 IoCs

Processes:

da1d1f735f97bf6ec7b008e135196afd97fd0f8884ddb7526df6be626453c3c8.exe

description	ioc	process
File created	C:\Windows\Tasks\rihv.job	da1d1f735f97bf6ec7b008e135196afd97fd0f8884ddb7526df6be626453c3c8.exe
File opened for modification	C:\Windows\Tasks\rihv.job	da1d1f735f97bf6ec7b008e135196afd97fd0f8884ddb7526df6be626453c3c8.exe

Program crash ⋅ 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4028 4360 WerFault.exe da1d1f735f97bf6ec7b008e135196afd97fd0f8884ddb7526df6be626453c3c8.exe

pid	pid_target	process	target process
4028	4360	WerFault.exe	da1d1f735f97bf6ec7b008e135196afd97fd0f8884ddb7526df6be626453c3c8.exe

Suspicious behavior: EnumeratesProcesses ⋅ 2 IoCs

Processes:

da1d1f735f97bf6ec7b008e135196afd97fd0f8884ddb7526df6be626453c3c8.exe

pid	process
4360	da1d1f735f97bf6ec7b008e135196afd97fd0f8884ddb7526df6be626453c3c8.exe
4360	da1d1f735f97bf6ec7b008e135196afd97fd0f8884ddb7526df6be626453c3c8.exe

C:\Users\Admin\AppData\Local\Temp\da1d1f735f97bf6ec7b008e135196afd97fd0f8884ddb7526df6be626453c3c8.exe

"C:\Users\Admin\AppData\Local\Temp\da1d1f735f97bf6ec7b008e135196afd97fd0f8884ddb7526df6be626453c3c8.exe"

Drops file in Windows directory
Suspicious behavior: EnumeratesProcesses

PID:4360

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4360 -s 948

Program crash

PID:4028

C:\ProgramData\wrfhdxg\rihv.exe

C:\ProgramData\wrfhdxg\rihv.exe start

Executes dropped EXE

PID:2612

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4360 -ip 4360

PID:4636

C:\Windows\system32\svchost.exe

C:\Windows\system32\svchost.exe -k appmodel -p -s camsvc

PID:944

Network

MITRE ATT&CK Matrix

Collection

Command and Control

Connection Proxy

Credential Access

Defense Evasion

Discovery

Execution

Exfiltration

Impact

Initial Access

Lateral Movement

Persistence

Privilege Escalation

Replay Monitor

00:00 00:00

Downloads

C:\ProgramData\wrfhdxg\rihv.exe
MD5
6852984ac451a05e24c746a7beae2f7e

SHA1
647d364e9c10453271d21d4de892ccdbc1ec938e

SHA256
da1d1f735f97bf6ec7b008e135196afd97fd0f8884ddb7526df6be626453c3c8

SHA512
c03b55e314da300fd769cac02465b22c0317dfd4c445e6c9c36dd2c68cea7045ceefd872b295772fc6aa3cab6e604a4f170067d3e4ff2295ccd6109b1e735220

Download Submit
C:\ProgramData\wrfhdxg\rihv.exe
MD5
6852984ac451a05e24c746a7beae2f7e

SHA1
647d364e9c10453271d21d4de892ccdbc1ec938e

SHA256
da1d1f735f97bf6ec7b008e135196afd97fd0f8884ddb7526df6be626453c3c8

SHA512
c03b55e314da300fd769cac02465b22c0317dfd4c445e6c9c36dd2c68cea7045ceefd872b295772fc6aa3cab6e604a4f170067d3e4ff2295ccd6109b1e735220

Download Submit
memory/2612-135-0x0000000003082000-0x0000000003089000-memory.dmp

Download
memory/2612-136-0x0000000000400000-0x0000000002FA1000-memory.dmp

Download
memory/4360-130-0x00000000032B8000-0x00000000032BF000-memory.dmp

Download
memory/4360-131-0x0000000003200000-0x0000000003209000-memory.dmp

Download
memory/4360-132-0x0000000000400000-0x0000000002FA1000-memory.dmp

Download