MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2de21c2468d1ae613de29ecb05b6d613849511f94aa2f7d669273cd7ddb63097. 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: 12


Intelligence 12 IOCs YARA 7 File information Comments

SHA256 hash: 2de21c2468d1ae613de29ecb05b6d613849511f94aa2f7d669273cd7ddb63097
SHA3-384 hash: 844b9625f58e74c6808ac5c2f5fa2bd81ef7d268b07058314a40160397fd7b5d1060984456537f53c9260a254875b93f
SHA1 hash: 683f868956fd32b9b4062b0f32d6371b7336e11b
MD5 hash: 0f798c42cf4a3724aab608409cdb0426
humanhash: maine-yankee-december-jersey
File name:appdrivesound.exe
Download: download sample
Signature SystemBC
File size:2'511'360 bytes
First seen:2024-07-19 07:55:06 UTC
Last seen:2024-07-20 07:19:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'656 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 49152:61pv13yZ22Kmdo+SWqyQ8wLajE+o6dlxMkjtGb:61XWumdoPOwujJPz+
TLSH T10DC5F10037A5E567F13F973280A1722197B0F099F7D2DB8F0E8666E92D127527C09AB7
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter JAMESWT_WT
Tags:exe SystemBC

Intelligence


File Origin
# of uploads :
2
# of downloads :
342
Origin country :
IT IT
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2de21c2468d1ae613de29ecb05b6d613849511f94aa2f7d669273cd7ddb63097.zip
Verdict:
Malicious activity
Analysis date:
2024-07-19 21:37:57 UTC
Tags:
netreactor

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
Stealth Trojan Coroxy
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% directory
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a process with a hidden window
Creating a file
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
coroxy packed
Result
Verdict:
MALICIOUS
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:
spre.troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
AI detected suspicious sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Send many emails (e-Mail Spam)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Tries to resolve many domain names, but no domain seems valid
Uses dynamic DNS services
Yara detected Costura Assembly Loader
Yara detected SystemBC
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1476604 Sample: appdrivesound.exe Startdate: 19/07/2024 Architecture: WINDOWS Score: 100 39 mail.parts.cjb.net 2->39 41 emaillab.xyz 2->41 43 1121 other IPs or domains 2->43 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 Antivirus detection for URL or domain 2->55 61 10 other signatures 2->61 7 appdrivesound.exe 1 7 2->7         started        11 fxni.exe 5 2->11         started        13 Hypdhoszwhs.exe 5 2->13         started        15 2 other processes 2->15 signatures3 57 Uses dynamic DNS services 39->57 59 Performs DNS queries to domains with low reputation 41->59 process4 file5 33 C:\Users\user\AppData\...\Hypdhoszwhs.exe, PE32 7->33 dropped 35 C:\Users\...\Hypdhoszwhs.exe:Zone.Identifier, ASCII 7->35 dropped 37 C:\Users\user\...\appdrivesound.exe.log, ASCII 7->37 dropped 63 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->63 65 Tries to detect virtualization through RDTSC time measurements 7->65 17 appdrivesound.exe 4 7->17         started        67 Multi AV Scanner detection for dropped file 11->67 69 Machine Learning detection for dropped file 11->69 20 fxni.exe 11->20         started        23 Hypdhoszwhs.exe 13->23         started        25 Hypdhoszwhs.exe 15->25         started        27 fxni.exe 15->27         started        signatures6 process7 dnsIp8 29 C:\ProgramData\ahqfkvo\fxni.exe, PE32 17->29 dropped 31 C:\ProgramData\...\fxni.exe:Zone.Identifier, ASCII 17->31 dropped 45 41.203.18.6 xneeloZA South Africa 20->45 47 mx.zoho.com 204.141.43.44 ZOHO-ASUS United States 20->47 49 129 other IPs or domains 20->49 file9
Threat name:
Win32.Backdoor.Coroxy
Status:
Malicious
First seen:
2024-07-18 16:09:52 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
persistence
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Suspicious use of SetThreadContext
Adds Run key to start application
Executes dropped EXE
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
2de21c2468d1ae613de29ecb05b6d613849511f94aa2f7d669273cd7ddb63097
MD5 hash:
0f798c42cf4a3724aab608409cdb0426
SHA1 hash:
683f868956fd32b9b4062b0f32d6371b7336e11b
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:BLOWFISH_Constants
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:SHA512_Constants
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Web download

SystemBC

Executable exe 2de21c2468d1ae613de29ecb05b6d613849511f94aa2f7d669273cd7ddb63097

(this sample)

  
Delivery method
Distributed via web download

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments