MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 eff416f17b83327e6911308b2b9678f52fb4b4d20b99a96f43c2478e5dcc10f2. 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



Vidar


Vendor detections: 12


Intelligence 12 IOCs YARA 5 File information Comments

SHA256 hash: eff416f17b83327e6911308b2b9678f52fb4b4d20b99a96f43c2478e5dcc10f2
SHA3-384 hash: 668ba29b7a2d523bf41d1cd10d15df7f7104fa9e0d7cfc497029e192f81d590d1962aa83b51accecc1dbe97e0ab2c111
SHA1 hash: d1f61cd7ccf682868720dacfc91f50ce4e70412b
MD5 hash: a8145015691ccb73460a69fa0a8b0304
humanhash: fix-whiskey-oven-eight
File name:file
Download: download sample
Signature Vidar
File size:467'832 bytes
First seen:2023-12-01 18:08:46 UTC
Last seen:2023-12-01 21:19:36 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 6144:I1/tBaOZZfURQrLmwCn/2L04fiOFnZitWpqdc6WwjLC6a2HEZ+rG7tUW:mtbRURQ+wC+9KtWpqSNg+6RrqtUW
Threatray 1 similar samples on MalwareBazaar
TLSH T133A46C0402655108CB2ED3B9D1535142B7B5BE22A622EBB67FFDF5E31EBB3D4660304A
TrID 27.3% (.SCR) Windows screen saver (13097/50/3)
22.0% (.EXE) Win64 Executable (generic) (10523/12/4)
13.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
10.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.4% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter andretavare5
Tags:exe signed vidar

Code Signing Certificate

Organisation:installrox inc
Issuer:installrox inc
Algorithm:sha256WithRSAEncryption
Valid from:2023-12-01T16:19:41Z
Valid to:2024-12-01T16:19:41Z
Serial number: 0a58eaa574cbdf66c3ae42b923144c13
Thumbprint Algorithm:SHA256
Thumbprint: a4044e2549c50f4ed21007c4487554e1188750b5a19966f5bd9d2561356fc3a1
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform


Avatar
andretavare5
Sample downloaded from http://91.92.241.91/files/InstallSetup2.exe

Intelligence


File Origin
# of uploads :
4
# of downloads :
326
Origin country :
US US
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Launching a process
Creating a file
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Creating a process from a recently created file
Creating a file in the %temp% directory
Searching for synchronization primitives
Creating a file in the Program Files subdirectories
Moving a file to the Program Files subdirectory
Creating a file in the %AppData% subdirectories
Using the Windows Management Instrumentation requests
Launching the process to interact with network services
Blocking the User Account Control
Adding exclusions to Windows Defender
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Enabling autorun by creating a file
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:
Glupteba, Petite Virus, Socks5Systemz, V
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Behaviour
Behavior Graph:
n/a
Threat name:
Win32.Trojan.Privateloader
Status:
Malicious
First seen:
2023-12-01 18:09:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
31
AV detection:
17 of 23 (73.91%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:glupteba family:vidar botnet:b38cb04787049a109b9655c2379f5b97 discovery dropper evasion loader persistence rootkit stealer trojan upx
Behaviour
Creates scheduled task(s)
Modifies data under HKEY_USERS
Modifies registry class
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System policy modification
Uses Task Scheduler COM API
NSIS installer
Enumerates physical storage devices
Checks for VirtualBox DLLs, possible anti-VM trick
Drops file in Program Files directory
Drops file in Windows directory
Launches sc.exe
Suspicious use of SetThreadContext
Adds Run key to start application
Checks installed software on the system
Checks whether UAC is enabled
Legitimate hosting services abused for malware hosting/C2
Manipulates WinMon driver.
Manipulates WinMonFS driver.
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
Registers COM server for autorun
UPX packed file
Windows security modification
Downloads MZ/PE file
Drops file in Drivers directory
Modifies Windows Firewall
Possible attempt to disable PatchGuard
Modifies boot configuration data using bcdedit
Glupteba
Glupteba payload
UAC bypass
Vidar
Windows security bypass
Malware Config
C2 Extraction:
https://t.me/s4p0g
https://steamcommunity.com/profiles/76561199575355834
Unpacked files
SH256 hash:
eff416f17b83327e6911308b2b9678f52fb4b4d20b99a96f43c2478e5dcc10f2
MD5 hash:
a8145015691ccb73460a69fa0a8b0304
SHA1 hash:
d1f61cd7ccf682868720dacfc91f50ce4e70412b
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:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:pe_imphash
Rule name:PE_Potentially_Signed_Digital_Certificate
Author:albertzsigovits
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.

  
Dropped by
PrivateLoader
  
Delivery method
Distributed via drive-by

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