MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f5be7905ff4e3fcff8697d08de785719c1eeac0d5ac5b8373917de764cc0cac1. 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



Glupteba


Vendor detections: 13


Intelligence 13 IOCs YARA 5 File information Comments

SHA256 hash: f5be7905ff4e3fcff8697d08de785719c1eeac0d5ac5b8373917de764cc0cac1
SHA3-384 hash: 534498d74e804088d81c9a88645bde3bd0c79282faa1722c2f50e6bccf30fb9ec0fc918c55672040e9979ea09774557a
SHA1 hash: 0edeffd5675ff0d9f3ea3e88a7e5c17a2e81df5a
MD5 hash: a474e3060a9f404479c442e38aad6268
humanhash: lamp-aspen-north-alabama
File name:file
Download: download sample
Signature Glupteba
File size:2'614'136 bytes
First seen:2023-12-04 01:26:03 UTC
Last seen:2023-12-04 12:37:21 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 49152:2O+hK8MFp4NzIYVDoAYCWMZ4Z6zVyy3PBzVBwo8VKiTw0qUthHfH:1MxoODVh35bwxf3H
Threatray 2 similar samples on MalwareBazaar
TLSH T11AC5DF63E2B5C5568F40B45F9FC1AACA17B3C33EE4A4A4B96BF10E4552A8FF51038127
TrID 30.2% (.EXE) Win64 Executable (generic) (10523/12/4)
18.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
14.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
12.9% (.EXE) Win32 Executable (generic) (4505/5/1)
5.9% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter andretavare5
Tags:exe Glupteba signed

Code Signing Certificate

Organisation:installrax inc
Issuer:installrax inc
Algorithm:sha256WithRSAEncryption
Valid from:2023-12-04T00:54:57Z
Valid to:2024-12-04T00:54:57Z
Serial number: f5cbe5b1c6f0443241adb04afd768659
Thumbprint Algorithm:SHA256
Thumbprint: 6d99b6882d85dd10d03dcde51de5f7f9c898a0a0ef7feb4e20ce9bb97e4caa84
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 :
10
# of downloads :
348
Origin country :
US US
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Creating a window
Searching for synchronization primitives
Creating a file in the %AppData% subdirectories
Searching for the window
Running batch commands
Creating a file in the Program Files subdirectories
Moving a file to the Program Files subdirectory
Launching the process to interact with network services
Launching the default Windows debugger (dwwin.exe)
Blocking the User Account Control
Launching a tool to kill processes
Adding exclusions to Windows Defender
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Enabling autorun by creating a file
Sending an HTTP GET request to an infection source
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
overlay 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:
Amadey, Glupteba, Petite Virus, Socks5Sy
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
Adds a directory exclusion to Windows Defender
Adds extensions / path to Windows Defender exclusion list (Registry)
Allocates memory in foreign processes
Antivirus detection for URL or domain
Creates HTML files with .exe extension (expired dropper behavior)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Disables UAC (registry)
Drops script or batch files to the startup folder
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Sigma detected: Drops script at startup location
Tries to harvest and steal browser information (history, passwords, etc)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes many files with high entropy
Writes to foreign memory regions
Yara detected Amadeys stealer DLL
Yara detected Generic Downloader
Yara detected Glupteba
Yara detected onlyLogger
Yara detected Petite Virus
Yara detected Socks5Systemz
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1352837 Sample: file.exe Startdate: 04/12/2023 Architecture: WINDOWS Score: 100 136 Multi AV Scanner detection for domain / URL 2->136 138 Malicious sample detected (through community Yara rule) 2->138 140 Antivirus detection for URL or domain 2->140 142 13 other signatures 2->142 10 file.exe 2 4 2->10         started        process3 signatures4 146 Writes to foreign memory regions 10->146 148 Allocates memory in foreign processes 10->148 150 Adds extensions / path to Windows Defender exclusion list (Registry) 10->150 152 3 other signatures 10->152 13 CasPol.exe 15 338 10->13         started        18 powershell.exe 23 10->18         started        process5 dnsIp6 124 91.92.241.91 THEZONEBG Bulgaria 13->124 126 107.167.110.216 OPERASOFTWAREUS United States 13->126 128 8 other IPs or domains 13->128 108 C:\Users\...\zdisgBaoPe6NXb01Fp2NelIS.exe, PE32 13->108 dropped 110 C:\Users\...\w2edj7WVBD9IbvQ07bMpGD3S.exe, PE32 13->110 dropped 112 C:\Users\...\vFrhNmpndHjw0PMgzPKhNbTV.exe, PE32 13->112 dropped 114 256 other malicious files 13->114 dropped 166 Drops script or batch files to the startup folder 13->166 168 Creates HTML files with .exe extension (expired dropper behavior) 13->168 170 Writes many files with high entropy 13->170 20 aHRHrdbkJKcyMAlEWxjc2sn1.exe 13->20         started        23 EPjlORwRwGMiao1ComfNJBr3.exe 13->23         started        25 WKdI8cugzEq1wQCfblug13Da.exe 13->25         started        29 12 other processes 13->29 27 conhost.exe 18->27         started        file7 signatures8 process9 dnsIp10 94 C:\Users\...\aHRHrdbkJKcyMAlEWxjc2sn1.tmp, PE32 20->94 dropped 33 aHRHrdbkJKcyMAlEWxjc2sn1.tmp 20->33         started        96 C:\Users\...PjlORwRwGMiao1ComfNJBr3.tmp, PE32 23->96 dropped 37 EPjlORwRwGMiao1ComfNJBr3.tmp 23->37         started        98 C:\Users\...\WKdI8cugzEq1wQCfblug13Da.tmp, PE32 25->98 dropped 39 WKdI8cugzEq1wQCfblug13Da.tmp 25->39         started        130 85.209.11.204 SYNGB Russian Federation 29->130 132 107.167.110.211 OPERASOFTWAREUS United States 29->132 134 10 other IPs or domains 29->134 100 Opera_installer_2312040128154538160.dll, PE32 29->100 dropped 102 Opera_installer_2312040128110147684.dll, PE32 29->102 dropped 104 Opera_installer_2312040128031867052.dll, PE32 29->104 dropped 106 22 other malicious files 29->106 dropped 160 Detected unpacking (changes PE section rights) 29->160 162 Detected unpacking (overwrites its own PE header) 29->162 164 Writes many files with high entropy 29->164 41 cmd.exe 29->41         started        43 fVMTGBnuNBSFdY6sqfIiptv9.exe 29->43         started        45 fVMTGBnuNBSFdY6sqfIiptv9.exe 29->45         started        47 8 other processes 29->47 file11 signatures12 process13 file14 82 59 other files (47 malicious) 33->82 dropped 144 Uses schtasks.exe or at.exe to add and modify task schedules 33->144 49 DecoLIB.exe 33->49         started        52 net.exe 33->52         started        54 schtasks.exe 33->54         started        56 DecoLIB.exe 33->56         started        84 57 other files (45 malicious) 37->84 dropped 72 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 39->72 dropped 74 C:\Users\user\AppData\Local\...\_isdecmp.dll, PE32 39->74 dropped 76 C:\Users\user\AppData\Local\...\_iscrypt.dll, PE32 39->76 dropped 86 54 other files (42 malicious) 39->86 dropped 59 2496352106.exe 41->59         started        62 conhost.exe 41->62         started        78 Opera_installer_2312040128055857268.dll, PE32 43->78 dropped 64 fVMTGBnuNBSFdY6sqfIiptv9.exe 43->64         started        80 Opera_installer_2312040128038266548.dll, PE32 45->80 dropped 88 5 other malicious files 47->88 dropped signatures15 process16 dnsIp17 90 C:\ProgramData\TLGAudioSvc\TLGAudioSvc.exe, PE32 49->90 dropped 66 conhost.exe 52->66         started        68 net1.exe 52->68         started        70 conhost.exe 54->70         started        116 185.196.8.22 SIMPLECARRER2IT Switzerland 56->116 118 45.155.250.90 MEER-ASmeerfarbigGmbHCoKGDE Germany 56->118 120 95.216.227.177 HETZNER-ASDE Germany 56->120 122 144.76.82.108 HETZNER-ASDE Germany 59->122 154 Detected unpacking (changes PE section rights) 59->154 156 Detected unpacking (overwrites its own PE header) 59->156 158 Tries to harvest and steal browser information (history, passwords, etc) 59->158 92 Opera_installer_2312040128064217360.dll, PE32 64->92 dropped file18 signatures19 process20
Threat name:
Win32.Trojan.Privateloader
Status:
Malicious
First seen:
2023-12-04 01:27:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
15 of 23 (65.22%)
Threat level:
  5/5
Result
Malware family:
glupteba
Score:
  10/10
Tags:
family:glupteba discovery dropper evasion loader persistence rootkit spyware stealer trojan upx
Behaviour
Creates scheduled task(s)
Kills process with taskkill
Modifies data under HKEY_USERS
Modifies system certificate store
Runs net.exe
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
Enumerates physical storage devices
Program crash
Checks for VirtualBox DLLs, possible anti-VM trick
Drops file in Program Files directory
Drops file in Windows directory
Launches sc.exe
Drops file in System32 directory
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Checks installed software on the system
Checks whether UAC is enabled
Enumerates connected drives
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
Reads local data of messenger clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
UPX packed file
Unexpected DNS network traffic destination
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
Windows security bypass
Unpacked files
SH256 hash:
f5be7905ff4e3fcff8697d08de785719c1eeac0d5ac5b8373917de764cc0cac1
MD5 hash:
a474e3060a9f404479c442e38aad6268
SHA1 hash:
0edeffd5675ff0d9f3ea3e88a7e5c17a2e81df5a
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:NET
Author:malware-lu
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

Comments