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
1797s
max time network
1798s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-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

Processes:

cnrwchp.exe

pid process

2896 cnrwchp.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

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

Proxy
T1090

pid	process
2896	cnrwchp.exe

flow	ioc
7	api.ipify.org
8	api.ipify.org

Drops file in Windows directory 2 IoCs

Processes:

fdc98ea3381d04350e38b592c2c63090d6f0bd32388a21fcfc5b7bfcb9753d20.exe

description	ioc	process
File created	C:\Windows\Tasks\cnrwchp.job	fdc98ea3381d04350e38b592c2c63090d6f0bd32388a21fcfc5b7bfcb9753d20.exe
File opened for modification	C:\Windows\Tasks\cnrwchp.job	fdc98ea3381d04350e38b592c2c63090d6f0bd32388a21fcfc5b7bfcb9753d20.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

fdc98ea3381d04350e38b592c2c63090d6f0bd32388a21fcfc5b7bfcb9753d20.exe

pid	process
164	fdc98ea3381d04350e38b592c2c63090d6f0bd32388a21fcfc5b7bfcb9753d20.exe
164	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:164

C:\ProgramData\pievsol\cnrwchp.exe
C:\ProgramData\pievsol\cnrwchp.exe start
1⤵
- Executes dropped EXE
PID:2896

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\pievsol\cnrwchp.exe
Filesize
121KB

MD5
2140899e877c2bb95f71f77c31e205ce

SHA1
b7322db66f0c4b5a48c10ca3213b899131045d11

SHA256
fdc98ea3381d04350e38b592c2c63090d6f0bd32388a21fcfc5b7bfcb9753d20

SHA512
6856af4f8cb1fceede24360c7e081e6beea701a44b80e6276db719e5cba3b6cf5f7fae8df4ce56852ea34e73dfa4e091a8ac258d1efb596e0d7224b33402fe07

Download Submit
memory/164-1-0x0000000003390000-0x0000000003490000-memory.dmp

Filesize
1024KB

Download
memory/164-2-0x0000000003240000-0x0000000003249000-memory.dmp

Filesize
36KB

Download
memory/164-3-0x0000000000400000-0x00000000031D1000-memory.dmp

Filesize
45.8MB

Download
memory/164-13-0x0000000003390000-0x0000000003490000-memory.dmp

Filesize
1024KB

Download
memory/2896-11-0x00000000031F0000-0x00000000032F0000-memory.dmp

Filesize
1024KB

Download
memory/2896-12-0x0000000000400000-0x00000000031D1000-memory.dmp

Filesize
45.8MB

Download
memory/2896-18-0x00000000031F0000-0x00000000032F0000-memory.dmp

Filesize
1024KB

Download