systembc | 23f66ece38393f81fc1f892c9243cebb6e5412b95629cc07fa83065f5b5a3e02

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
08-02-2023 19:06

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General

Target

40753d4f4ba5863be3aaaa38cd50995a.exe
Size

114KB
MD5

40753d4f4ba5863be3aaaa38cd50995a
SHA1

cb58f6a57ecd27e7380e0f38dedb621d7d161e19
SHA256

23f66ece38393f81fc1f892c9243cebb6e5412b95629cc07fa83065f5b5a3e02
SHA512

7a458e629b22a0d62b9b34df9e04e40eca88ebc8f4067f42f83a0a1d6812cf56635c3d17c48b5ef97ea900c439ab30d32c5307ce6bfee7842b2202e3e1a831ad
SSDEEP

1536:hGFLBB4S2zN22dyPPVHbPa3bjCY0X+9hGUhW5jSVM3JdT4AFuxbUS:hGFLBb2o+3CXXE1W520JdMAFuxbU

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

winstationsocks.com:4124

winstationsocks.xyz:4124

Signatures

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

Processes:

gqrmwp.exe

pid process

2356 gqrmwp.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

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

Connection Proxy
T1090

pid	process
2356	gqrmwp.exe

flow	ioc
25	api.ipify.org
26	api.ipify.org

Drops file in Windows directory 2 IoCs

Processes:

40753d4f4ba5863be3aaaa38cd50995a.exe

description	ioc	process
File created	C:\Windows\Tasks\gqrmwp.job	40753d4f4ba5863be3aaaa38cd50995a.exe
File opened for modification	C:\Windows\Tasks\gqrmwp.job	40753d4f4ba5863be3aaaa38cd50995a.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3448 2148 WerFault.exe 40753d4f4ba5863be3aaaa38cd50995a.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

40753d4f4ba5863be3aaaa38cd50995a.exe

pid process

2148 40753d4f4ba5863be3aaaa38cd50995a.exe
2148 40753d4f4ba5863be3aaaa38cd50995a.exe

pid	pid_target	process	target process
3448	2148	WerFault.exe	40753d4f4ba5863be3aaaa38cd50995a.exe

pid	process
2148	40753d4f4ba5863be3aaaa38cd50995a.exe
2148	40753d4f4ba5863be3aaaa38cd50995a.exe

C:\Users\Admin\AppData\Local\Temp\40753d4f4ba5863be3aaaa38cd50995a.exe
"C:\Users\Admin\AppData\Local\Temp\40753d4f4ba5863be3aaaa38cd50995a.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 484
2⤵
- Program crash
PID:3448

C:\ProgramData\vxvsqoo\gqrmwp.exe
C:\ProgramData\vxvsqoo\gqrmwp.exe start
1⤵
- Executes dropped EXE
PID:2356

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2148 -ip 2148
1⤵
PID:2204

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\vxvsqoo\gqrmwp.exe
Filesize
114KB

MD5
40753d4f4ba5863be3aaaa38cd50995a

SHA1
cb58f6a57ecd27e7380e0f38dedb621d7d161e19

SHA256
23f66ece38393f81fc1f892c9243cebb6e5412b95629cc07fa83065f5b5a3e02

SHA512
7a458e629b22a0d62b9b34df9e04e40eca88ebc8f4067f42f83a0a1d6812cf56635c3d17c48b5ef97ea900c439ab30d32c5307ce6bfee7842b2202e3e1a831ad

Download Submit
C:\ProgramData\vxvsqoo\gqrmwp.exe
Filesize
114KB

MD5
40753d4f4ba5863be3aaaa38cd50995a

SHA1
cb58f6a57ecd27e7380e0f38dedb621d7d161e19

SHA256
23f66ece38393f81fc1f892c9243cebb6e5412b95629cc07fa83065f5b5a3e02

SHA512
7a458e629b22a0d62b9b34df9e04e40eca88ebc8f4067f42f83a0a1d6812cf56635c3d17c48b5ef97ea900c439ab30d32c5307ce6bfee7842b2202e3e1a831ad

Download Submit
memory/2148-133-0x0000000000030000-0x0000000000039000-memory.dmp

Filesize
36KB

Download
memory/2148-132-0x00000000008E2000-0x00000000008E8000-memory.dmp

Filesize
24KB

Download
memory/2148-134-0x0000000000400000-0x0000000000854000-memory.dmp

Filesize
4.3MB

Download
memory/2148-135-0x00000000008E2000-0x00000000008E8000-memory.dmp

Filesize
24KB

Download
memory/2148-141-0x00000000008E2000-0x00000000008E8000-memory.dmp

Filesize
24KB

Download
memory/2356-138-0x00000000009BD000-0x00000000009C4000-memory.dmp

Filesize
28KB

Download
memory/2356-139-0x0000000000400000-0x0000000000854000-memory.dmp

Filesize
4.3MB

Download
memory/2356-140-0x00000000009BD000-0x00000000009C4000-memory.dmp

Filesize
28KB

Download