systembc | fdc98ea3381d04350e38b592c2c63090d6f0bd32388a21fcfc5b7bfcb9753d20

Resubmissions

18-04-2024 05:25

240418-f4hreadf5z 10

18-04-2024 05:25

18-04-2024 05:25

18-04-2024 05:25

18-04-2024 05:25

Analysis

max time kernel
310s
max time network
317s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
18-04-2024 05:25

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General

Target

fdc98ea3381d04350e38b592c2c63090d6f0bd32388a21fcfc5b7bfcb9753d20.exe
Size

121KB
MD5

2140899e877c2bb95f71f77c31e205ce
SHA1

b7322db66f0c4b5a48c10ca3213b899131045d11
SHA256

fdc98ea3381d04350e38b592c2c63090d6f0bd32388a21fcfc5b7bfcb9753d20
SHA512

6856af4f8cb1fceede24360c7e081e6beea701a44b80e6276db719e5cba3b6cf5f7fae8df4ce56852ea34e73dfa4e091a8ac258d1efb596e0d7224b33402fe07
SSDEEP

1536:R7YvZGrzMeJILNJMuxyBye/DB79CTi+Ey7c3Ul4kfQuk2RGiXqp64:KvZ8NSLP60e/FeRhTfXrRGN64

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

sdadvert197.com:4044

mexstat128.com:4044

Signatures

SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
trojan systembc

Executes dropped EXE 1 IoCs

pid	Process
5072	niolvge.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.

flow	ioc
51	api.ipify.org
52	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\niolvge.job	fdc98ea3381d04350e38b592c2c63090d6f0bd32388a21fcfc5b7bfcb9753d20.exe
File opened for modification	C:\Windows\Tasks\niolvge.job	fdc98ea3381d04350e38b592c2c63090d6f0bd32388a21fcfc5b7bfcb9753d20.exe

Program crash 3 IoCs

pid	pid_target	Process	procid_target
3112	2408	WerFault.exe	90
400	2408	WerFault.exe	90
3708	2408	WerFault.exe	90

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2408	fdc98ea3381d04350e38b592c2c63090d6f0bd32388a21fcfc5b7bfcb9753d20.exe
2408	fdc98ea3381d04350e38b592c2c63090d6f0bd32388a21fcfc5b7bfcb9753d20.exe

C:\Users\Admin\AppData\Local\Temp\fdc98ea3381d04350e38b592c2c63090d6f0bd32388a21fcfc5b7bfcb9753d20.exe
"C:\Users\Admin\AppData\Local\Temp\fdc98ea3381d04350e38b592c2c63090d6f0bd32388a21fcfc5b7bfcb9753d20.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:2408
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2408 -s 960
  2⤵
  - Program crash
  PID:3112
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2408 -s 968
  2⤵
  - Program crash
  PID:400
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2408 -s 976
  2⤵
  - Program crash
  PID:3708

C:\ProgramData\shjb\niolvge.exe
C:\ProgramData\shjb\niolvge.exe start
1⤵
- Executes dropped EXE
PID:5072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 2408 -ip 2408
1⤵
PID:2652

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2408 -ip 2408
1⤵
PID:2376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2408 -ip 2408
1⤵
PID:3040

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\shjb\niolvge.exe

Filesize
121KB

MD5
2140899e877c2bb95f71f77c31e205ce

SHA1
b7322db66f0c4b5a48c10ca3213b899131045d11

SHA256
fdc98ea3381d04350e38b592c2c63090d6f0bd32388a21fcfc5b7bfcb9753d20

SHA512
6856af4f8cb1fceede24360c7e081e6beea701a44b80e6276db719e5cba3b6cf5f7fae8df4ce56852ea34e73dfa4e091a8ac258d1efb596e0d7224b33402fe07

Download Submit
memory/2408-1-0x0000000003500000-0x0000000003600000-memory.dmp

Filesize
1024KB

Download
memory/2408-2-0x0000000003480000-0x0000000003489000-memory.dmp

Filesize
36KB

Download
memory/2408-3-0x0000000000400000-0x00000000031D1000-memory.dmp

Filesize
45.8MB

Download
memory/2408-14-0x0000000003500000-0x0000000003600000-memory.dmp

Filesize
1024KB

Download
memory/5072-11-0x0000000003500000-0x0000000003600000-memory.dmp

Filesize
1024KB

Download
memory/5072-12-0x00000000034D0000-0x00000000034D9000-memory.dmp

Filesize
36KB

Download
memory/5072-13-0x0000000000400000-0x00000000031D1000-memory.dmp

Filesize
45.8MB

Download
memory/5072-19-0x0000000003500000-0x0000000003600000-memory.dmp

Filesize
1024KB

Download