systembc | 1cbfeebc0561f8989bd66b25807a8d20cbe1ef91b021b16296c38ca02603448a

General

Target

1cbfeebc0561f8989bd66b25807a8d20cbe1ef91b021b16296c38ca02603448a.exe
Size

254KB
MD5

db935d9703763461691ff0250366cfcc
SHA1

711569fe53a73d8083bc895f731e80a9a08d3814
SHA256

1cbfeebc0561f8989bd66b25807a8d20cbe1ef91b021b16296c38ca02603448a
SHA512

d50c59b46ea4488560a9c343ad2108a3db47e0d33f636758362a2ed3d014f5feab6b0143196fb4ab116fec120433346cf2b43f19341a831cd7e0585c28c31555

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

C2

26asdcgd.com:4039

26asdcgd.xyz:4039

Signatures

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

Processes:

gcojups.exe

pid process

4484 gcojups.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

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

Connection Proxy
T1090

pid	process
4484	gcojups.exe

flow	ioc
9	api.ipify.org
10	api.ipify.org

Drops file in Windows directory 2 IoCs

Processes:

1cbfeebc0561f8989bd66b25807a8d20cbe1ef91b021b16296c38ca02603448a.exe

description	ioc	process
File created	C:\Windows\Tasks\gcojups.job	1cbfeebc0561f8989bd66b25807a8d20cbe1ef91b021b16296c38ca02603448a.exe
File opened for modification	C:\Windows\Tasks\gcojups.job	1cbfeebc0561f8989bd66b25807a8d20cbe1ef91b021b16296c38ca02603448a.exe

Program crash 8 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
872	2148	WerFault.exe	1cbfeebc0561f8989bd66b25807a8d20cbe1ef91b021b16296c38ca02603448a.exe
4292	4484	WerFault.exe	gcojups.exe
4148	4484	WerFault.exe	gcojups.exe
2492	2148	WerFault.exe	1cbfeebc0561f8989bd66b25807a8d20cbe1ef91b021b16296c38ca02603448a.exe
3464	2148	WerFault.exe	1cbfeebc0561f8989bd66b25807a8d20cbe1ef91b021b16296c38ca02603448a.exe
216	4484	WerFault.exe	gcojups.exe
3180	4484	WerFault.exe	gcojups.exe
4448	2148	WerFault.exe	1cbfeebc0561f8989bd66b25807a8d20cbe1ef91b021b16296c38ca02603448a.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

1cbfeebc0561f8989bd66b25807a8d20cbe1ef91b021b16296c38ca02603448a.exe

pid	process
2148	1cbfeebc0561f8989bd66b25807a8d20cbe1ef91b021b16296c38ca02603448a.exe
2148	1cbfeebc0561f8989bd66b25807a8d20cbe1ef91b021b16296c38ca02603448a.exe

C:\Users\Admin\AppData\Local\Temp\1cbfeebc0561f8989bd66b25807a8d20cbe1ef91b021b16296c38ca02603448a.exe
"C:\Users\Admin\AppData\Local\Temp\1cbfeebc0561f8989bd66b25807a8d20cbe1ef91b021b16296c38ca02603448a.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:2148

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2148 -s 488
2⤵
- Program crash
PID:872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2148 -s 948
2⤵
- Program crash
PID:2492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2148 -s 960
2⤵
- Program crash
PID:3464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2148 -s 472
2⤵
- Program crash
PID:4448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2148 -ip 2148
1⤵
PID:1552

C:\ProgramData\namsqud\gcojups.exe
C:\ProgramData\namsqud\gcojups.exe start
1⤵
- Executes dropped EXE
PID:4484

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4484 -s 488
2⤵
- Program crash
PID:4292

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4484 -s 768
2⤵
- Program crash
PID:4148

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4484 -s 868
2⤵
- Program crash
PID:216

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4484 -s 880
2⤵
- Program crash
PID:3180

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4484 -ip 4484
1⤵
PID:1560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4484 -ip 4484
1⤵
PID:1428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 2148 -ip 2148
1⤵
PID:580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 2148 -ip 2148
1⤵
PID:1708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4484 -ip 4484
1⤵
PID:3608

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4484 -ip 4484
1⤵
PID:3160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2148 -ip 2148
1⤵
PID:3040

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

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Downloads

C:\ProgramData\namsqud\gcojups.exe
Filesize
254KB

MD5
db935d9703763461691ff0250366cfcc

SHA1
711569fe53a73d8083bc895f731e80a9a08d3814

SHA256
1cbfeebc0561f8989bd66b25807a8d20cbe1ef91b021b16296c38ca02603448a

SHA512
d50c59b46ea4488560a9c343ad2108a3db47e0d33f636758362a2ed3d014f5feab6b0143196fb4ab116fec120433346cf2b43f19341a831cd7e0585c28c31555

Download Submit
C:\ProgramData\namsqud\gcojups.exe
Filesize
254KB

MD5
db935d9703763461691ff0250366cfcc

SHA1
711569fe53a73d8083bc895f731e80a9a08d3814

SHA256
1cbfeebc0561f8989bd66b25807a8d20cbe1ef91b021b16296c38ca02603448a

SHA512
d50c59b46ea4488560a9c343ad2108a3db47e0d33f636758362a2ed3d014f5feab6b0143196fb4ab116fec120433346cf2b43f19341a831cd7e0585c28c31555

Download Submit
memory/2148-130-0x0000000002475000-0x000000000247C000-memory.dmp

Filesize
28KB

Download
memory/2148-131-0x0000000002360000-0x0000000002369000-memory.dmp

Filesize
36KB

Download
memory/2148-132-0x0000000000400000-0x00000000022FC000-memory.dmp

Filesize
31.0MB

Download
memory/4484-135-0x000000000259E000-0x00000000025A5000-memory.dmp

Filesize
28KB

Download
memory/4484-136-0x0000000000400000-0x00000000022FC000-memory.dmp

Filesize
31.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads