systembc | 7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5

Resubmissions

17-04-2024 09:26

240417-lee7waah53 10

17-04-2024 09:26

17-04-2024 09:26

17-04-2024 09:26

17-04-2024 09:26

16-04-2024 13:38

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
17-04-2024 09:26

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General

Target

7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5.exe
Size

1.0MB
MD5

0a286d2f6060a92d15ddfd03063a1486
SHA1

172ae7b2059b420c463daf8ca58a55d8ab500d5c
SHA256

7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5
SHA512

bdcccaf8f7636bb54d74d1a1ead3288234a787c3b6d9c3d96e3584fc520088c97c98130e8fe030a1ee9551376b270f0ee5c6e53dd44581850e73abc9493d4cc7
SSDEEP

6144:X9mI/A/bpCQqR5yqL5pbqD8T/ruThC711qC711Q:X9ro/4QqLrqDC/ru8PDPQ

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

yan0212.com:4039

yan0212.net:4039

Signatures

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

Processes:

vmrxeu.exe

pid process

692 vmrxeu.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

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

Proxy
T1090

pid	process
692	vmrxeu.exe

flow	ioc
30	api.ipify.org
31	api.ipify.org

Drops file in Windows directory 2 IoCs

Processes:

7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5.exe

description	ioc	process
File created	C:\Windows\Tasks\vmrxeu.job	7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5.exe
File opened for modification	C:\Windows\Tasks\vmrxeu.job	7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4268 4932 WerFault.exe 7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5.exe

pid	pid_target	process	target process
4268	4932	WerFault.exe	7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5.exe

pid	process
4932	7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5.exe
4932	7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5.exe

C:\Users\Admin\AppData\Local\Temp\7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5.exe
"C:\Users\Admin\AppData\Local\Temp\7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:4932

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4932 -s 492
2⤵
- Program crash
PID:4268

C:\ProgramData\lnqtw\vmrxeu.exe
C:\ProgramData\lnqtw\vmrxeu.exe start
1⤵
- Executes dropped EXE
PID:692

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4932 -ip 4932
1⤵
PID:2692

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Proxy

T1090

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\ProgramData\lnqtw\vmrxeu.exe
Filesize
1.0MB

MD5
0a286d2f6060a92d15ddfd03063a1486

SHA1
172ae7b2059b420c463daf8ca58a55d8ab500d5c

SHA256
7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5

SHA512
bdcccaf8f7636bb54d74d1a1ead3288234a787c3b6d9c3d96e3584fc520088c97c98130e8fe030a1ee9551376b270f0ee5c6e53dd44581850e73abc9493d4cc7

Download Submit
memory/692-12-0x00000000047F0000-0x00000000048F0000-memory.dmp

Filesize
1024KB

Download
memory/692-13-0x00000000001C0000-0x00000000001C9000-memory.dmp

Filesize
36KB

Download
memory/692-16-0x0000000000400000-0x00000000045E6000-memory.dmp

Filesize
65.9MB

Download
memory/692-19-0x00000000047F0000-0x00000000048F0000-memory.dmp

Filesize
1024KB

Download
memory/4932-0-0x0000000000400000-0x00000000045E6000-memory.dmp

Filesize
65.9MB

Download
memory/4932-3-0x00000000001C0000-0x00000000001C9000-memory.dmp

Filesize
36KB

Download
memory/4932-2-0x0000000004920000-0x0000000004A20000-memory.dmp

Filesize
1024KB

Download
memory/4932-11-0x0000000000400000-0x00000000045E6000-memory.dmp

Filesize
65.9MB

Download
memory/4932-14-0x0000000004920000-0x0000000004A20000-memory.dmp

Filesize
1024KB

Download
memory/4932-27-0x0000000000400000-0x00000000045E6000-memory.dmp

Filesize
65.9MB

Download