MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 798e0870efbf28e90fb48671e8ef55bb9b442602cc505522a991153d79f2bfaf. 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



VenomRAT


Vendor detections: 19


Intelligence 19 IOCs YARA 7 File information Comments

SHA256 hash: 798e0870efbf28e90fb48671e8ef55bb9b442602cc505522a991153d79f2bfaf
SHA3-384 hash: 680833e9a1b51c358ff1f9ae91b4a67e4d5d1ab941d6561cbff6d2934629913f317f88fc5a038077e41e08450c9a76c4
SHA1 hash: 1ed663a6bdfa6a9ce443b9cfdee41b65bffa04b7
MD5 hash: 37fa2e7e97bb22ad70d55986d1a379de
humanhash: california-orange-bacon-minnesota
File name:37FA2E7E97BB22AD70D55986D1A379DE.exe
Download: download sample
Signature VenomRAT
File size:451'584 bytes
First seen:2024-01-21 19:00:37 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'473 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:3tqsNFa3Y91xCbY0QBKkPXfx1PG4wLGwI9NhD76:3tZAYUbu/76
Threatray 89 similar samples on MalwareBazaar
TLSH T18EA4C2243EEA9029F373AF795BE4759E9A6EF7633707941D1091038A0B23A41DDC173A
TrID 64.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.8% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.8% (.FON) Windows Font (5545/9/1)
4.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 0e98e1be7e5c77cc (1 x VenomRAT)
Reporter abuse_ch
Tags:exe VenomRAT


Avatar
abuse_ch
VenomRAT C2:
141.255.159.169:5552

Intelligence


File Origin
# of uploads :
1
# of downloads :
357
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
798e0870efbf28e90fb48671e8ef55bb9b442602cc505522a991153d79f2bfaf.exe
Verdict:
Malicious activity
Analysis date:
2024-01-21 19:01:10 UTC
Tags:
revengerat rat njrat bladabindi asyncrat remote stealer miner

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for synchronization primitives
DNS request
Creating a file
Enabling the 'hidden' option for recently created files
Sending a custom TCP request
Creating a window
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Creating a file in the system32 directory
Creating a process from a recently created file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm evasive explorer lolbin packed rat schtasks shell32
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.
Malware family:
Generic Malware
Verdict:
Malicious
Result
Threat name:
AsyncRAT, Njrat, RevengeRAT, StormKitty,
Detection:
malicious
Classification:
rans.spre.phis.troj.adwa.spyw.expl.evad.mine
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Check if machine is in data center or colocation facility
Connects to a pastebin service (likely for C&C)
Contains functionality to log keystrokes (.Net Source)
Creates an autostart registry key pointing to binary in C:\Windows
Creates autostart registry keys with suspicious names
Creates files inside the volume driver (system volume information)
Creates multiple autostart registry keys
Disables zone checking for all users
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files to the startup folder
Drops PE files with benign system names
Drops script or batch files to the startup folder
Drops VBS files to the startup folder
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Found RAT behaviour (information extraction to be send to C&C)
Infects executable files (exe, dll, sys, html)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies existing user documents (likely ransomware behavior)
Modifies the windows firewall
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Drops script at startup location
Snort IDS alert for network traffic
Suspicious execution chain found
Suspicious powershell command line found
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Uses netsh to modify the Windows network and firewall settings
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Yara detected BrowserPasswordDump
Yara detected Njrat
Yara detected RevengeRAT
Yara detected StormKitty Stealer
Yara detected VenomRAT
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1378347 Sample: iUi6TG0GhX.exe Startdate: 21/01/2024 Architecture: WINDOWS Score: 100 131 pastebin.com 2->131 133 noose.servehttp.com 2->133 135 6 other IPs or domains 2->135 153 Snort IDS alert for network traffic 2->153 155 Multi AV Scanner detection for domain / URL 2->155 157 Found malware configuration 2->157 161 23 other signatures 2->161 12 iUi6TG0GhX.exe 20 2->12         started        16 chrome.exe 2->16         started        19 Win32NT.exe 2->19         started        21 7 other processes 2->21 signatures3 159 Connects to a pastebin service (likely for C&C) 131->159 process4 dnsIp5 137 noose.servehttp.com 141.255.159.169, 4449, 49732, 49735 IELOIELOMainNetworkFR France 12->137 119 C:\Windows\System32\Win32NT.exe, PE32 12->119 dropped 121 C:\Sexypornbabiesvideosandpictures\Porn.exe, PE32 12->121 dropped 23 Win32NT.exe 1 43 12->23         started        27 cmd.exe 12->27         started        29 vbc.exe 1 12->29         started        31 cmd.exe 12->31         started        139 ip-api.com 208.95.112.1 TUT-ASUS United States 16->139 141 icanhazip.com 104.18.115.97 CLOUDFLARENETUS United States 16->141 143 3 other IPs or domains 16->143 123 C:\Users\user\AppData\...\mineexplorer.exe, PE32+ 16->123 dropped 125 C:\Users\user\AppData\...\UMMBDNEQBN.docx, ASCII 16->125 dropped 127 C:\Users\user\AppData\...\HTAGVDFUIE.png, ASCII 16->127 dropped 129 C:\Users\user\AppData\...\DVWHKMNFNN.xlsx, ASCII 16->129 dropped 145 Multi AV Scanner detection for dropped file 16->145 147 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 16->147 149 Protects its processes via BreakOnTermination flag 16->149 151 5 other signatures 16->151 33 cmd.exe 16->33         started        file6 signatures7 process8 file9 101 C:\Users\user\AppData\...\explorer.exe, PE32 23->101 dropped 103 C:\Users\user\AppData\Local\...\575267982.exe, PE32 23->103 dropped 105 C:\Users\user\AppData\Local\...\569576654.exe, PE32 23->105 dropped 107 2 other malicious files 23->107 dropped 175 Multi AV Scanner detection for dropped file 23->175 177 Drops script or batch files to the startup folder 23->177 179 Drops VBS files to the startup folder 23->179 187 4 other signatures 23->187 35 569576654.exe 23->35         started        39 575267982.exe 23->39         started        41 vbc.exe 23->41         started        49 6 other processes 23->49 181 Bypasses PowerShell execution policy 27->181 51 2 other processes 27->51 183 Drops PE files to the startup folder 29->183 43 conhost.exe 29->43         started        53 3 other processes 31->53 185 Suspicious powershell command line found 33->185 45 powershell.exe 33->45         started        47 conhost.exe 33->47         started        signatures10 process11 file12 87 C:\Users\user\AppData\Roaming\explorer.exe, PE32 35->87 dropped 163 Multi AV Scanner detection for dropped file 35->163 165 Drops PE files with benign system names 35->165 55 explorer.exe 35->55         started        89 C:\Users\user\AppData\Local\Temp\chrome.exe, PE32 39->89 dropped 167 Protects its processes via BreakOnTermination flag 39->167 169 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 39->169 171 Infects executable files (exe, dll, sys, html) 39->171 91 C:\System Volume Information.exe, PE32 41->91 dropped 173 Creates files inside the volume driver (system volume information) 41->173 59 conhost.exe 41->59         started        61 cvtres.exe 41->61         started        63 mineexplorer.exe 45->63         started        93 C:\Users\user\AppData\Roaming\...\Win32NT.exe, PE32 49->93 dropped 95 C:\Recovery.exe, PE32 49->95 dropped 97 C:\PerfLogs.exe, PE32 49->97 dropped 99 2 other malicious files 49->99 dropped 65 conhost.exe 49->65         started        67 conhost.exe 49->67         started        69 conhost.exe 49->69         started        71 8 other processes 49->71 signatures13 process14 file15 109 C:\...\3eccc729eab990291ac501e9f53a5ebb.exe, PE32 55->109 dropped 111 C:\Users\user\AppData\...\tmp632D.tmp.exe, PE32+ 55->111 dropped 113 C:\Users\user\AppData\...\tmp2052.tmp.exe, PE32+ 55->113 dropped 189 System process connects to network (likely due to code injection or exploit) 55->189 191 Multi AV Scanner detection for dropped file 55->191 193 Protects its processes via BreakOnTermination flag 55->193 197 7 other signatures 55->197 73 tmp632D.tmp.exe 55->73         started        77 netsh.exe 55->77         started        79 Win32NT.exe 55->79         started        115 C:\ProgramData\explorer.exe, PE32+ 63->115 dropped 195 Drops PE files with benign system names 63->195 signatures16 process17 file18 117 C:\ProgramData\explorer_enhanced.exe, PE32+ 73->117 dropped 199 Adds a directory exclusion to Windows Defender 73->199 81 powershell.exe 73->81         started        83 conhost.exe 77->83         started        signatures19 process20 process21 85 conhost.exe 81->85         started       
Threat name:
ByteCode-MSIL.Trojan.ReventRat
Status:
Malicious
First seen:
2024-01-19 03:05:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
34 of 38 (89.47%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:asyncrat family:njrat family:revengerat family:stormkitty family:xmrig botnet:moneyhunter collection discovery evasion miner persistence rat spyware stealer trojan upx
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Delays execution with timeout.exe
Modifies data under HKEY_USERS
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Launches sc.exe
Drops file in System32 directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks installed software on the system
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Looks up geolocation information via web service
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
UPX packed file
Uses the VBS compiler for execution
Creates new service(s)
Modifies Windows Firewall
Stops running service(s)
Async RAT payload
RevengeRat Executable
XMRig Miner payload
AsyncRat
RevengeRAT
StormKitty
StormKitty payload
njRAT/Bladabindi
xmrig
Malware Config
C2 Extraction:
noose.servehttp.com:666
Unpacked files
SH256 hash:
798e0870efbf28e90fb48671e8ef55bb9b442602cc505522a991153d79f2bfaf
MD5 hash:
37fa2e7e97bb22ad70d55986d1a379de
SHA1 hash:
1ed663a6bdfa6a9ce443b9cfdee41b65bffa04b7
Detections:
win_revenge_rat_g2 Gen_Base64_EXE INDICATOR_SUSPICIOUS_EXE_Embedded_Gzip_B64Encoded_File RevengeRAT_Sep17 MALWARE_Win_RevengeRAT
Malware family:
RevengeRAT
Verdict:
Malicious
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:INDICATOR_SUSPICIOUS_EXE_Embedded_Gzip_B64Encoded_File
Author:ditekSHen
Description:Detects executables containing bas64 encoded gzip files
Rule name:MALWARE_Win_RevengeRAT
Author:ditekSHen
Description:RevengeRAT and variants payload
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:RevengeRAT_Sep17
Author:Florian Roth (Nextron Systems)
Description:Detects RevengeRAT malware
Reference:Internal Research
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_Revengerat_db91bcc6
Author:Elastic Security

File information


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

Comments