MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 790b64a5860a5069fedcb660efdffce2b5ab2195086100a6079697b662f0c198. 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



Phobos


Vendor detections: 12


Intelligence 12 IOCs YARA 3 File information Comments

SHA256 hash: 790b64a5860a5069fedcb660efdffce2b5ab2195086100a6079697b662f0c198
SHA3-384 hash: 3e5de27c9ac261bc9bc4c661a179c8f13141dbcc08bff714d41a9e0ee4182386682cdda908a301f25cf27be8d1bf09e8
SHA1 hash: 480b65fe568acd420dacd4b935529f2505e94151
MD5 hash: 9bb98f2989a73a1e3d8d490669462422
humanhash: apart-ten-ink-lithium
File name:9bb98f2989a73a1e3d8d490669462422.exe
Download: download sample
Signature Phobos
File size:584'192 bytes
First seen:2023-10-03 17:57:47 UTC
Last seen:2023-10-03 18:38:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:MTQp8eHRevUGXTYJ0M8SbYrAwhLtaczsQc0TwmqyAAJtT:cc82RGFj80pwY5aczXTNqyz
Threatray 141 similar samples on MalwareBazaar
TLSH T1A9C4AE1827A85527C24F0E34D1F6554CEFB5CA378B4AEB9E5C807AB99C133C9D9834A3
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter abuse_ch
Tags:exe Phobos

Intelligence


File Origin
# of uploads :
2
# of downloads :
352
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Launching a service
Searching for synchronization primitives
Launching cmd.exe command interpreter
Creating a process with a hidden window
Changing a file
Modifying an executable file
Sending a custom TCP request
Modifies multiple files
Replacing executable files
Creating a file in the Program Files directory
Creating a file in the Program Files subdirectories
Launching the process to change the firewall settings
Moving a file to the Program Files subdirectory
Moving a file to the %AppData% subdirectory
Launching a process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Creating a file in the mass storage device
Deleting volume shadow copies
Preventing system recovery
Enabling autorun by creating a file
Infecting executable files
Gathering data
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:
Phobos Ransomware
Verdict:
Malicious
Result
Threat name:
Phobos, Voidcrypt
Detection:
malicious
Classification:
rans.spre.adwa.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Creates files in the recycle bin to hide itself
Creates files inside the volume driver (system volume information)
Deletes shadow drive data (may be related to ransomware)
Deletes the backup plan of Windows
Drops PE files to the startup folder
Found evasive API chain (may stop execution after checking locale)
Infects executable files (exe, dll, sys, html)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May disable shadow drive data (uses vssadmin)
Modifies the windows firewall
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Delete shadow copy via WMIC
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 bcdedit to modify the Windows boot settings
Uses netsh to modify the Windows network and firewall settings
Writes many files with high entropy
Yara detected Costura Assembly Loader
Yara detected Phobos
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1318923 Sample: 52KtHdbGDH.exe Startdate: 03/10/2023 Architecture: WINDOWS Score: 100 76 Malicious sample detected (through community Yara rule) 2->76 78 Multi AV Scanner detection for dropped file 2->78 80 Multi AV Scanner detection for submitted file 2->80 82 7 other signatures 2->82 8 52KtHdbGDH.exe 3 2->8         started        11 52KtHdbGDH.exe 2->11         started        13 52KtHdbGDH.exe 2->13         started        15 5 other processes 2->15 process3 signatures4 100 Drops PE files to the startup folder 8->100 102 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->102 104 Writes many files with high entropy 8->104 17 52KtHdbGDH.exe 503 8->17         started        106 Multi AV Scanner detection for dropped file 11->106 108 Machine Learning detection for dropped file 11->108 110 Found evasive API chain (may stop execution after checking locale) 11->110 21 52KtHdbGDH.exe 11->21         started        112 Injects a PE file into a foreign processes 13->112 23 52KtHdbGDH.exe 13->23         started        25 52KtHdbGDH.exe 13->25         started        27 52KtHdbGDH.exe 13->27         started        114 Creates files inside the volume driver (system volume information) 15->114 29 52KtHdbGDH.exe 15->29         started        31 52KtHdbGDH.exe 15->31         started        33 52KtHdbGDH.exe 15->33         started        35 52KtHdbGDH.exe 15->35         started        process5 file6 64 C:\ProgramData\Microsoft\...\52KtHdbGDH.exe, PE32 17->64 dropped 66 pkeyconfig-office....rexsdata.pro].8base, DOS 17->66 dropped 68 thumbcache_16.db.i...rexsdata.pro].8base, data 17->68 dropped 70 20 other malicious files 17->70 dropped 84 Creates files in the recycle bin to hide itself 17->84 86 Tries to harvest and steal browser information (history, passwords, etc) 17->86 88 Infects executable files (exe, dll, sys, html) 17->88 37 cmd.exe 1 17->37         started        40 52KtHdbGDH.exe 2 17->40         started        42 cmd.exe 17->42         started        44 2 other processes 17->44 signatures7 process8 signatures9 90 May disable shadow drive data (uses vssadmin) 37->90 92 Deletes shadow drive data (may be related to ransomware) 37->92 94 Uses netsh to modify the Windows network and firewall settings 37->94 98 3 other signatures 37->98 46 vssadmin.exe 1 37->46         started        49 bcdedit.exe 8 1 37->49         started        51 bcdedit.exe 7 1 37->51         started        62 3 other processes 37->62 96 Injects a PE file into a foreign processes 40->96 53 52KtHdbGDH.exe 1 6 40->53         started        56 netsh.exe 3 42->56         started        58 netsh.exe 3 42->58         started        60 conhost.exe 42->60         started        process10 file11 116 Deletes shadow drive data (may be related to ransomware) 46->116 72 C:\Users\user\AppData\...\52KtHdbGDH.exe, PE32 53->72 dropped 74 C:\Users\user\AppData\Local\52KtHdbGDH.exe, PE32 53->74 dropped signatures12
Threat name:
ByteCode-MSIL.Ransomware.Phobos
Status:
Malicious
First seen:
2023-10-03 10:22:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
19 of 35 (54.29%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:phobos evasion persistence ransomware spyware stealer
Behaviour
Checks SCSI registry key(s)
Interacts with shadow copies
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy service COM API
Enumerates physical storage devices
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Drops desktop.ini file(s)
Checks computer location settings
Drops startup file
Reads user/profile data of web browsers
Deletes backup catalog
Modifies Windows Firewall
Deletes shadow copies
Modifies boot configuration data using bcdedit
Renames multiple (311) files with added filename extension
Renames multiple (469) files with added filename extension
Phobos
Unpacked files
SH256 hash:
b628a91c2a4b40cdc5ae617de380849bba3555a760520d6be992ae61d6434286
MD5 hash:
e58d68b1b76108714b01a69ea3b869b6
SHA1 hash:
b0b058d322a13d57921339d0a43102c6cea10f99
SH256 hash:
cf611a0cc26168c66642ddf9bb078b6c359e50a5b3bf38e5ec819f57a9f0ed13
MD5 hash:
71d91297bf7db188eca2995a7c6ec2ca
SHA1 hash:
826d582d31e2f78428e190dad83c8ff21efb9e1c
SH256 hash:
b4b89828380c4781c7beafa6dce00ae38cd4adc13ad56792996e28c41def5c53
MD5 hash:
966061cecee2b65fe7149dfa1d0f2c3a
SHA1 hash:
691ed7b6c4c0bdd824ede0514aacda9d7adc51f1
SH256 hash:
d948a3bc89f10acabbc289bbd1b5966398b22c908aff754086583490fde3f3af
MD5 hash:
fb0c23eddf263fa534574da871a68b61
SHA1 hash:
35737bd16172fa511a8461b6326b33dd25db7855
SH256 hash:
790b64a5860a5069fedcb660efdffce2b5ab2195086100a6079697b662f0c198
MD5 hash:
9bb98f2989a73a1e3d8d490669462422
SHA1 hash:
480b65fe568acd420dacd4b935529f2505e94151
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_imphash
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

Phobos

Executable exe 790b64a5860a5069fedcb660efdffce2b5ab2195086100a6079697b662f0c198

(this sample)

  
Delivery method
Distributed via web download

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