systembc | 09800c68e162c77868d7f4bf14cf89b63d4c3e62a3da81a21455633f469ffcdc

Resubmissions

17-04-2024 12:47

240417-p1aq3ahc4w 10

17-04-2024 12:47

17-04-2024 12:47

17-04-2024 12:46

17-04-2024 12:46

17-04-2024 06:16

Analysis

max time kernel
299s
max time network
301s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
17-04-2024 12:46

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General

Target

09800c68e162c77868d7f4bf14cf89b63d4c3e62a3da81a21455633f469ffcdc.exe
Size

221KB
MD5

364d59e179ebcd469dce4f231789732d
SHA1

bc86ba43147fe0d301a32b66193dd2930b8af1d2
SHA256

09800c68e162c77868d7f4bf14cf89b63d4c3e62a3da81a21455633f469ffcdc
SHA512

92ae882cb803b23dc344a42b07ffcc77999f71dcd6b7bf1d2ca7e7306a7642543a2cc85f2bdf18df67151a8b2145509363b2552d4e5361715bc55b934db046fe
SSDEEP

6144:0YlvDFWQtzoa2gUayZSSnBcaa5MKmtVgykK:BNtzPqUgkNM4

Score

10^/10

systembc trojan upx

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

pid	Process
1112	twisf.exe

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral3/files/0x000800000001ac27-5.dat	upx

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	api.ipify.org
5	api.ipify.org

Uses Tor communications 1 TTPs
Malware can proxy its traffic through Tor for more anonymity.

Proxy
T1090

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\twisf.job	09800c68e162c77868d7f4bf14cf89b63d4c3e62a3da81a21455633f469ffcdc.exe
File opened for modification	C:\Windows\Tasks\twisf.job	09800c68e162c77868d7f4bf14cf89b63d4c3e62a3da81a21455633f469ffcdc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3988	09800c68e162c77868d7f4bf14cf89b63d4c3e62a3da81a21455633f469ffcdc.exe
3988	09800c68e162c77868d7f4bf14cf89b63d4c3e62a3da81a21455633f469ffcdc.exe

C:\Users\Admin\AppData\Local\Temp\09800c68e162c77868d7f4bf14cf89b63d4c3e62a3da81a21455633f469ffcdc.exe
"C:\Users\Admin\AppData\Local\Temp\09800c68e162c77868d7f4bf14cf89b63d4c3e62a3da81a21455633f469ffcdc.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:3988

C:\ProgramData\aegkmoq\twisf.exe
C:\ProgramData\aegkmoq\twisf.exe start
1⤵
- Executes dropped EXE
PID:1112

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Proxy

T1090

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\aegkmoq\twisf.exe

Filesize
221KB

MD5
364d59e179ebcd469dce4f231789732d

SHA1
bc86ba43147fe0d301a32b66193dd2930b8af1d2

SHA256
09800c68e162c77868d7f4bf14cf89b63d4c3e62a3da81a21455633f469ffcdc

SHA512
92ae882cb803b23dc344a42b07ffcc77999f71dcd6b7bf1d2ca7e7306a7642543a2cc85f2bdf18df67151a8b2145509363b2552d4e5361715bc55b934db046fe

Download Submit
memory/1112-8-0x0000000005010000-0x0000000005019000-memory.dmp

Filesize
36KB

Download
memory/1112-10-0x0000000000400000-0x0000000004C6C000-memory.dmp

Filesize
72.4MB

Download
memory/3988-1-0x0000000004DE0000-0x0000000004DE9000-memory.dmp

Filesize
36KB

Download
memory/3988-0-0x0000000004C90000-0x0000000004C96000-memory.dmp

Filesize
24KB

Download
memory/3988-7-0x0000000000400000-0x0000000004C6C000-memory.dmp

Filesize
72.4MB

Download