systembc | e71a3a3daea6774b51d0e10142ce3ef4168175ef3415fd095a1e5c0486f02763

General

Target

e71a3a3daea6774b51d0e10142ce3ef4168175ef3415fd095a1e5c0486f02763.exe
Size

95KB
MD5

0fa62d99e9fa9e4da58a1e2a7dc3d5a9
SHA1

cf0f9fa093bc1a1ff51c368194e03c8bf66d6a73
SHA256

e71a3a3daea6774b51d0e10142ce3ef4168175ef3415fd095a1e5c0486f02763
SHA512

58fb9d1689a69bd63bea760cefadc18d3821e545b1540f166e63f65e480b62a3e36e6a327539dd0ae729c073d38d497e2ac091b6fec6a044fe8be0bb9e66b729

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

C2

dasdasd28asd.com:4035

sasdcs28sd.xyz:4035

Signatures

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

Processes:

dsgifc.exe

pid process

3188 dsgifc.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

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

Connection Proxy
T1090

pid	process
3188	dsgifc.exe

flow	ioc
36	api.ipify.org
37	api.ipify.org

Drops file in Windows directory 2 IoCs

Processes:

e71a3a3daea6774b51d0e10142ce3ef4168175ef3415fd095a1e5c0486f02763.exe

description	ioc	process
File created	C:\Windows\Tasks\dsgifc.job	e71a3a3daea6774b51d0e10142ce3ef4168175ef3415fd095a1e5c0486f02763.exe
File opened for modification	C:\Windows\Tasks\dsgifc.job	e71a3a3daea6774b51d0e10142ce3ef4168175ef3415fd095a1e5c0486f02763.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3448 2892 WerFault.exe e71a3a3daea6774b51d0e10142ce3ef4168175ef3415fd095a1e5c0486f02763.exe

pid	pid_target	process	target process
3448	2892	WerFault.exe	e71a3a3daea6774b51d0e10142ce3ef4168175ef3415fd095a1e5c0486f02763.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

e71a3a3daea6774b51d0e10142ce3ef4168175ef3415fd095a1e5c0486f02763.exe

pid	process
2892	e71a3a3daea6774b51d0e10142ce3ef4168175ef3415fd095a1e5c0486f02763.exe
2892	e71a3a3daea6774b51d0e10142ce3ef4168175ef3415fd095a1e5c0486f02763.exe

C:\Users\Admin\AppData\Local\Temp\e71a3a3daea6774b51d0e10142ce3ef4168175ef3415fd095a1e5c0486f02763.exe
"C:\Users\Admin\AppData\Local\Temp\e71a3a3daea6774b51d0e10142ce3ef4168175ef3415fd095a1e5c0486f02763.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:2892

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2892 -s 948
2⤵
- Program crash
PID:3448

C:\ProgramData\svmqj\dsgifc.exe
C:\ProgramData\svmqj\dsgifc.exe start
1⤵
- Executes dropped EXE
PID:3188

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2892 -ip 2892
1⤵
PID:1996

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

1

T1090

Impact

Replay Monitor

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Downloads

C:\ProgramData\svmqj\dsgifc.exe
Filesize
95KB

MD5
0fa62d99e9fa9e4da58a1e2a7dc3d5a9

SHA1
cf0f9fa093bc1a1ff51c368194e03c8bf66d6a73

SHA256
e71a3a3daea6774b51d0e10142ce3ef4168175ef3415fd095a1e5c0486f02763

SHA512
58fb9d1689a69bd63bea760cefadc18d3821e545b1540f166e63f65e480b62a3e36e6a327539dd0ae729c073d38d497e2ac091b6fec6a044fe8be0bb9e66b729

Download Submit
C:\ProgramData\svmqj\dsgifc.exe
Filesize
95KB

MD5
0fa62d99e9fa9e4da58a1e2a7dc3d5a9

SHA1
cf0f9fa093bc1a1ff51c368194e03c8bf66d6a73

SHA256
e71a3a3daea6774b51d0e10142ce3ef4168175ef3415fd095a1e5c0486f02763

SHA512
58fb9d1689a69bd63bea760cefadc18d3821e545b1540f166e63f65e480b62a3e36e6a327539dd0ae729c073d38d497e2ac091b6fec6a044fe8be0bb9e66b729

Download Submit
memory/2892-131-0x0000000000F80000-0x0000000001080000-memory.dmp

Filesize
1024KB

Download
memory/2892-132-0x0000000002CB0000-0x0000000002CB9000-memory.dmp

Filesize
36KB

Download
memory/2892-133-0x0000000000400000-0x0000000000F75000-memory.dmp

Filesize
11.5MB

Download
memory/3188-136-0x0000000001223000-0x0000000001229000-memory.dmp

Filesize
24KB

Download
memory/3188-137-0x00000000010C0000-0x00000000010C9000-memory.dmp

Filesize
36KB

Download
memory/3188-138-0x0000000000400000-0x0000000000F75000-memory.dmp

Filesize
11.5MB

Download

Analysis

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