systembc | 1dc9a3c5d28e2e20b5bbbfd229a356ec88364280fa19ecdf0882a9533e7de3b3

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
02-04-2023 07:48

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General

Target

cc4f80bbbd81cf14599c74e9f8e970ac.exe
Size

150KB
MD5

cc4f80bbbd81cf14599c74e9f8e970ac
SHA1

c73b8e764bd16cc885143dee674a18ac98a1199c
SHA256

1dc9a3c5d28e2e20b5bbbfd229a356ec88364280fa19ecdf0882a9533e7de3b3
SHA512

74beb8e33636186fec989c47e7a91f6d1a33acf450557bf1188b4160b841ededed890fb0ccbb04ffc80d4aecc463da4ac70e224b2b4e762eaa5520003f7cfd5a
SSDEEP

3072:v/0zSzwIPgTY2nTnIKAlrym0jzGtnOfLn6bdVsPH6:HJXPPAIKPmIgOzn6bkf6

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

89.203.249.203:4035

gamelom20.com:4035

Signatures

SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
trojan systembc
Executes dropped EXE 1 IoCs

Processes:

bntfgfs.exe

pid process

3132 bntfgfs.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

38 api.ipify.org
39 api.ipify.org
Uses Tor communications 1 TTPs
Malware can proxy its traffic through Tor for more anonymity.

Connection Proxy
T1090

pid	process
3132	bntfgfs.exe

flow	ioc
38	api.ipify.org
39	api.ipify.org

Drops file in Windows directory 2 IoCs

Processes:

cc4f80bbbd81cf14599c74e9f8e970ac.exe

description	ioc	process
File created	C:\Windows\Tasks\bntfgfs.job	cc4f80bbbd81cf14599c74e9f8e970ac.exe
File opened for modification	C:\Windows\Tasks\bntfgfs.job	cc4f80bbbd81cf14599c74e9f8e970ac.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3772 4236 WerFault.exe cc4f80bbbd81cf14599c74e9f8e970ac.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

cc4f80bbbd81cf14599c74e9f8e970ac.exe

pid process

4236 cc4f80bbbd81cf14599c74e9f8e970ac.exe
4236 cc4f80bbbd81cf14599c74e9f8e970ac.exe

pid	pid_target	process	target process
3772	4236	WerFault.exe	cc4f80bbbd81cf14599c74e9f8e970ac.exe

pid	process
4236	cc4f80bbbd81cf14599c74e9f8e970ac.exe
4236	cc4f80bbbd81cf14599c74e9f8e970ac.exe

C:\Users\Admin\AppData\Local\Temp\cc4f80bbbd81cf14599c74e9f8e970ac.exe
"C:\Users\Admin\AppData\Local\Temp\cc4f80bbbd81cf14599c74e9f8e970ac.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:4236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4236 -s 944
2⤵
- Program crash
PID:3772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4236 -ip 4236
1⤵
PID:3976

C:\ProgramData\cpij\bntfgfs.exe
C:\ProgramData\cpij\bntfgfs.exe start
1⤵
- Executes dropped EXE
PID:3132

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Connection Proxy

T1090

Impact

Replay Monitor

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Downloads

C:\ProgramData\cpij\bntfgfs.exe
Filesize
150KB

MD5
cc4f80bbbd81cf14599c74e9f8e970ac

SHA1
c73b8e764bd16cc885143dee674a18ac98a1199c

SHA256
1dc9a3c5d28e2e20b5bbbfd229a356ec88364280fa19ecdf0882a9533e7de3b3

SHA512
74beb8e33636186fec989c47e7a91f6d1a33acf450557bf1188b4160b841ededed890fb0ccbb04ffc80d4aecc463da4ac70e224b2b4e762eaa5520003f7cfd5a

Download Submit
C:\ProgramData\cpij\bntfgfs.exe
Filesize
150KB

MD5
cc4f80bbbd81cf14599c74e9f8e970ac

SHA1
c73b8e764bd16cc885143dee674a18ac98a1199c

SHA256
1dc9a3c5d28e2e20b5bbbfd229a356ec88364280fa19ecdf0882a9533e7de3b3

SHA512
74beb8e33636186fec989c47e7a91f6d1a33acf450557bf1188b4160b841ededed890fb0ccbb04ffc80d4aecc463da4ac70e224b2b4e762eaa5520003f7cfd5a

Download Submit
memory/3132-149-0x0000000000400000-0x0000000003314000-memory.dmp

Filesize
47.1MB

Download
memory/4236-134-0x0000000000030000-0x0000000000039000-memory.dmp

Filesize
36KB

Download
memory/4236-135-0x0000000000400000-0x0000000003314000-memory.dmp

Filesize
47.1MB

Download