MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f891e10c9a7b6d0cbbbb6b3d103cf3dc935541430c5363648e6e1a3203bdd76d. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



SystemBC


Vendor detections: 14


Intelligence 14 IOCs YARA 6 File information Comments

SHA256 hash: f891e10c9a7b6d0cbbbb6b3d103cf3dc935541430c5363648e6e1a3203bdd76d
SHA3-384 hash: 6a7a409c3fe7fa6dc248edc44c97050758365429fd73e0ad06dcd43efb4b13238d4d02616bd818a53b9d7fa2905808e3
SHA1 hash: 73594de56be8beaf92392af56c8bcc2fa44a6eac
MD5 hash: a7cbdc69144242409bce8285135b61f8
humanhash: alpha-golf-nineteen-social
File name:a7cbdc69144242409bce8285135b61f8.exe
Download: download sample
Signature SystemBC
File size:228'864 bytes
First seen:2022-03-26 15:56:39 UTC
Last seen:2022-03-26 17:33:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ed1b2792ced7a8e7bb849a84d01e5fcb (9 x Smoke Loader, 5 x RedLineStealer, 5 x Stop)
ssdeep 1536:3pKr2jztTQudAGkD32Vrz0O1gtLA6q88vwzk/KYO1jD+fbPp8U45INU5h2lx//9I:3pKr2asc3+9yYO1jkLp8x5IiCx//9I
Threatray 76 similar samples on MalwareBazaar
TLSH T1DF24D0223690D031C4871A71B439CAAC5DBEE93117760E4B37A9167E5F303D1AABB74E
File icon (PE):PE icon
dhash icon 5c59da3ce0c1c850 (36 x Stop, 33 x Smoke Loader, 26 x RedLineStealer)
Reporter abuse_ch
Tags:exe SystemBC

Intelligence


File Origin
# of uploads :
2
# of downloads :
237
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Creating a file
Creating a process from a recently created file
Sending a custom TCP request
Launching the default Windows debugger (dwwin.exe)
Enabling autorun by creating a file
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Behaviour
MeasuringTime
SystemUptime
EvasionGetTickCount
EvasionQueryPerformanceCounter
CheckCmdLine
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
SystemBC
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found evasive API chain (may stop execution after checking mutex)
Found malware configuration
Malicious sample detected (through community Yara rule)
May use the Tor software to hide its network traffic
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect virtualization through RDTSC time measurements
Yara detected SystemBC
Behaviour
Behavior Graph:
Threat name:
Win32.Backdoor.Coroxy
Status:
Malicious
First seen:
2022-03-26 13:28:00 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
20 of 25 (80.00%)
Threat level:
  5/5
Result
Malware family:
systembc
Score:
  10/10
Tags:
family:systembc trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Program crash
Drops file in Windows directory
Downloads MZ/PE file
Executes dropped EXE
SystemBC
Malware Config
C2 Extraction:
31.44.185.6:4001
31.44.185.11:4001
Unpacked files
SH256 hash:
b432805eb6b2b58dd957481aa8a973be58915c26c04630ce395753c6a5196b14
MD5 hash:
5403c11319b16a89e7665141f8bff9fb
SHA1 hash:
9c9ae4bdf521749f23267644e7346f7ee2ad98ab
Detections:
win_systembc_g0 win_systembc_auto
SH256 hash:
f891e10c9a7b6d0cbbbb6b3d103cf3dc935541430c5363648e6e1a3203bdd76d
MD5 hash:
a7cbdc69144242409bce8285135b61f8
SHA1 hash:
73594de56be8beaf92392af56c8bcc2fa44a6eac
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:MALWARE_Win_EXEPWSH_DLAgent
Author:ditekSHen
Description:Detects SystemBC
Rule name:MiniTor
Author:@bartblaze
Description:Identifies MiniTor implementation as seen in SystemBC and Parallax RAT.
Reference:https://news.sophos.com/en-us/2020/12/16/systembc/
Rule name:Start2_net_mem
Author:James_inthe_box
Description:SystemBC
Reference:7bd341488dc6f01a6662ac478d67d3cd8211cbf362994355027b5bdf573cc31e
Rule name:Start2_overlap_mem
Author:James_inthe_box
Description:SystemBC
Reference:7bd341488dc6f01a6662ac478d67d3cd8211cbf362994355027b5bdf573cc31e
Rule name:SystemBC_Config
Author:@bartblaze
Description:Identifies SystemBC RAT, decrypted config.
Rule name:win_systembc_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.systembc.

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

SystemBC

Executable exe f891e10c9a7b6d0cbbbb6b3d103cf3dc935541430c5363648e6e1a3203bdd76d

(this sample)

  
Delivery method
Distributed via web download

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