systembc | 5d366decba2f9078f457cb35fe7bfd198760683a709f0d33745fc6e0ba59ac8a

Resubmissions

16-05-2022 16:24

220516-twn54sddfp 10

Analysis

max time kernel
149s
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
14-04-2024 14:32

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General

Target

5d366decba2f9078f457cb35fe7bfd198760683a709f0d33745fc6e0ba59ac8a.exe
Size

222KB
MD5

72cfa33b978294103889481feca472f2
SHA1

0615eb31fd67345b9fa0d57d12a3bcb363152abe
SHA256

5d366decba2f9078f457cb35fe7bfd198760683a709f0d33745fc6e0ba59ac8a
SHA512

d1de5fee23b7a858ec62b849cd8a41cf896ab8b6df4836c65ba36942c1d1727b36832d45713a578c93e8a0b8650bf55923568637d91bb9b2196257a2ae015559
SSDEEP

3072:m04yjyyUD1HncBNyBNp5oEug4OkyJAQF1G8Xrrw+cC+lJDJEQkjvuMM:SR1HUUPCEZ4OkyJ9rrw+cZTuZSMM

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

fanstat18.club:4044

dexblog90.club:4044

Signatures

SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
trojan systembc
Executes dropped EXE 2 IoCs

Processes:

ceau.execeau.exe

pid process

4904 ceau.exe
4012 ceau.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

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

Proxy
T1090

pid	process
4904	ceau.exe
4012	ceau.exe

flow	ioc
57	api.ipify.org
58	api.ipify.org

Drops file in Windows directory 2 IoCs

Processes:

5d366decba2f9078f457cb35fe7bfd198760683a709f0d33745fc6e0ba59ac8a.exe

description	ioc	process
File opened for modification	C:\Windows\Tasks\ceau.job	5d366decba2f9078f457cb35fe7bfd198760683a709f0d33745fc6e0ba59ac8a.exe
File created	C:\Windows\Tasks\ceau.job	5d366decba2f9078f457cb35fe7bfd198760683a709f0d33745fc6e0ba59ac8a.exe

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid	pid_target	process	target process
4492	3924	WerFault.exe	5d366decba2f9078f457cb35fe7bfd198760683a709f0d33745fc6e0ba59ac8a.exe
940	4904	WerFault.exe	ceau.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

5d366decba2f9078f457cb35fe7bfd198760683a709f0d33745fc6e0ba59ac8a.exe

pid	process
3924	5d366decba2f9078f457cb35fe7bfd198760683a709f0d33745fc6e0ba59ac8a.exe
3924	5d366decba2f9078f457cb35fe7bfd198760683a709f0d33745fc6e0ba59ac8a.exe

C:\Users\Admin\AppData\Local\Temp\5d366decba2f9078f457cb35fe7bfd198760683a709f0d33745fc6e0ba59ac8a.exe
"C:\Users\Admin\AppData\Local\Temp\5d366decba2f9078f457cb35fe7bfd198760683a709f0d33745fc6e0ba59ac8a.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:3924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3924 -s 948
2⤵
- Program crash
PID:4492

C:\ProgramData\onbmmx\ceau.exe
C:\ProgramData\onbmmx\ceau.exe start2
1⤵
- Executes dropped EXE
PID:4904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 484
2⤵
- Program crash
PID:940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3924 -ip 3924
1⤵
PID:1772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4904 -ip 4904
1⤵
PID:3276

C:\ProgramData\onbmmx\ceau.exe
C:\ProgramData\onbmmx\ceau.exe start2
1⤵
- Executes dropped EXE
PID:4012

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\onbmmx\ceau.exe
Filesize
222KB

MD5
72cfa33b978294103889481feca472f2

SHA1
0615eb31fd67345b9fa0d57d12a3bcb363152abe

SHA256
5d366decba2f9078f457cb35fe7bfd198760683a709f0d33745fc6e0ba59ac8a

SHA512
d1de5fee23b7a858ec62b849cd8a41cf896ab8b6df4836c65ba36942c1d1727b36832d45713a578c93e8a0b8650bf55923568637d91bb9b2196257a2ae015559

Download Submit
memory/3924-1-0x00000000006E0000-0x00000000007E0000-memory.dmp

Filesize
1024KB

Download
memory/3924-2-0x0000000000670000-0x0000000000679000-memory.dmp

Filesize
36KB

Download
memory/3924-3-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3924-14-0x00000000006E0000-0x00000000007E0000-memory.dmp

Filesize
1024KB

Download
memory/4012-30-0x0000000000780000-0x0000000000880000-memory.dmp

Filesize
1024KB

Download
memory/4012-31-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4012-34-0x0000000000780000-0x0000000000880000-memory.dmp

Filesize
1024KB

Download
memory/4904-11-0x0000000000820000-0x0000000000920000-memory.dmp

Filesize
1024KB

Download
memory/4904-13-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4904-12-0x0000000000730000-0x0000000000739000-memory.dmp

Filesize
36KB

Download
memory/4904-17-0x0000000000820000-0x0000000000920000-memory.dmp

Filesize
1024KB

Download