MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c70ced34e4c01df4344e9ee4b2a42190f25ed6ac7543ee9c9579cb0ca8658256. 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: 17


Intelligence 17 IOCs YARA 4 File information Comments

SHA256 hash: c70ced34e4c01df4344e9ee4b2a42190f25ed6ac7543ee9c9579cb0ca8658256
SHA3-384 hash: 45a8acda7210cbb8dc4f1ad715ef9a7b4c8f2b12897be3958cdfc8d4bd9a9b763dae25a31bff26604cdfe50a07daa9e2
SHA1 hash: 37bcd0bdcf97e436b54440627bee368800f4188e
MD5 hash: 03ff3bba0065b0b29723f59c41890e45
humanhash: three-oregon-montana-delta
File name:2024-06-30_03ff3bba0065b0b29723f59c41890e45_phobos
Download: download sample
Signature Phobos
File size:57'856 bytes
First seen:2024-06-30 03:23:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 851a0ba8fbb71710075bdfe6dcef92eb (67 x Phobos, 2 x Worm.Ramnit)
ssdeep 1536:CUNeRBl5PT/rx1mzwRMSTdLpJasHSW7E7oq5Mq:BQRrmzwR5J9HTeoqOq
Threatray 171 similar samples on MalwareBazaar
TLSH T1DE43B009705944B2CE628670253E6F5F8FBE950540F894574F298E8A3FD9073E72E3BA
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) (4504/4/1)
5.9% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter nickkuechel
Tags:exe Phobos

Intelligence


File Origin
# of uploads :
1
# of downloads :
577
Origin country :
US US
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.9%
Tags:
Execution Generic Network Other Ransomware Stealth Xpack
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Launching a service
Restart of the analyzed sample
Searching for synchronization primitives
Creating a file
Launching cmd.exe command interpreter
Creating a process with a hidden window
Changing a file
Modifying an executable file
Modifies multiple files
Launching the process to change the firewall settings
Replacing executable files
Creating a file in the Program Files directory
Creating a file in the Program Files subdirectories
Launching a process
Moving a file to the Program Files subdirectory
Creating a window
Deleting a recently created file
Using the Windows Management Instrumentation requests
Network activity
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Creating a file in the mass storage device
Deleting volume shadow copies
Enabling autorun for a service
Preventing system recovery
Enabling autorun by creating a file
Encrypting user's files
Infecting executable files
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fingerprint lolbin microsoft_visual_cc packed shell32 xpack
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.evad
Score:
100 / 100
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
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 executable to a common third party application directory
Drops PE files to the startup folder
Found evasive API chain (may stop execution after checking locale)
Found ransom note / readme
Infects executable files (exe, dll, sys, html)
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
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Shadow Copies Deletion Using Operating Systems Utilities
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 Phobos
Yara detected Voidcrypt Ransomware
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1464789 Sample: hi1bxF8hYj.exe Startdate: 30/06/2024 Architecture: WINDOWS Score: 100 76 Malicious sample detected (through community Yara rule) 2->76 78 Antivirus / Scanner detection for submitted sample 2->78 80 Multi AV Scanner detection for dropped file 2->80 82 10 other signatures 2->82 7 hi1bxF8hYj.exe 1 1001 2->7         started        11 hi1bxF8hYj.exe 2->11         started        13 wbengine.exe 2->13         started        15 6 other processes 2->15 process3 file4 46 C:\ProgramData\Microsoft\...\hi1bxF8hYj.exe, PE32 7->46 dropped 48 ADelRCP.exe.id[92B...ata@tuta.io].LIZARD, DOS 7->48 dropped 50 A3DUtils.dll.id[92...ata@tuta.io].LIZARD, DOS 7->50 dropped 52 83 other malicious files 7->52 dropped 84 Creates files in the recycle bin to hide itself 7->84 86 Drops PE files to the startup folder 7->86 88 Writes many files with high entropy 7->88 96 2 other signatures 7->96 17 cmd.exe 1 7->17         started        20 cmd.exe 7->20         started        22 cmd.exe 7->22         started        24 4 other processes 7->24 90 Multi AV Scanner detection for dropped file 11->90 92 Found evasive API chain (may stop execution after checking locale) 11->92 94 Creates files inside the volume driver (system volume information) 13->94 signatures5 process6 file7 62 May disable shadow drive data (uses vssadmin) 17->62 64 Deletes shadow drive data (may be related to ransomware) 17->64 66 Uses netsh to modify the Windows network and firewall settings 17->66 68 Modifies the windows firewall 17->68 27 netsh.exe 2 17->27         started        29 netsh.exe 2 17->29         started        31 conhost.exe 17->31         started        70 Uses bcdedit to modify the Windows boot settings 20->70 72 Deletes the backup plan of Windows 20->72 33 vssadmin.exe 1 20->33         started        36 conhost.exe 20->36         started        38 WMIC.exe 20->38         started        42 3 other processes 20->42 40 vssadmin.exe 22->40         started        44 5 other processes 22->44 54 C:\Users\user\AppData\...\hi1bxF8hYj.exe, PE32 24->54 dropped 56 C:\Users\user\AppData\Local\hi1bxF8hYj.exe, PE32 24->56 dropped 58 C:\Users\...\hi1bxF8hYj.exe:Zone.Identifier, ASCII 24->58 dropped 60 C:\Users\...\hi1bxF8hYj.exe:Zone.Identifier, ASCII 24->60 dropped signatures8 process9 signatures10 74 Deletes shadow drive data (may be related to ransomware) 33->74
Threat name:
Win32.Ransomware.Phobos
Status:
Malicious
First seen:
2024-06-29 20:53:53 UTC
File Type:
PE (Exe)
AV detection:
34 of 38 (89.47%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:phobos defense_evasion evasion execution impact persistence privilege_escalation 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
Event Triggered Execution: Netsh Helper DLL
Drops file in Program Files directory
Adds Run key to start application
Drops desktop.ini file(s)
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 (306) files with added filename extension
Phobos
Unpacked files
SH256 hash:
b030fc1a04b85395d2acea10cbfe58ce6aaae78837bbfddcfb2b8dca0508d0cb
MD5 hash:
52e26beb567b688fd96cc18c0906c505
SHA1 hash:
2f6eea808e25f554b0e849872fbeec5267b11cb4
SH256 hash:
c70ced34e4c01df4344e9ee4b2a42190f25ed6ac7543ee9c9579cb0ca8658256
MD5 hash:
03ff3bba0065b0b29723f59c41890e45
SHA1 hash:
37bcd0bdcf97e436b54440627bee368800f4188e
Detections:
win_phobos_auto MALWARE_Win_Phobos
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:EXE_Ransomware_Phobos_Feb2024
Author:Yashraj Solanki - Cyber Threat Intelligence Analyst at Bridewell
Rule name:MALWARE_Win_Phobos
Author:ditekshen
Description:Detects Phobos ransomware
Rule name:Windows_Ransomware_Phobos_11ea7be5
Author:Elastic Security
Description:Identifies Phobos ransomware
Reference:https://malpedia.caad.fkie.fraunhofer.de/details/win.phobos
Rule name:win_phobos_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.phobos.

File information


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

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 (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::AllocateAndInitializeSid
ADVAPI32.dll::EqualSid
ADVAPI32.dll::FreeSid
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::DuplicateTokenEx
ADVAPI32.dll::GetTokenInformation
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
WINHTTP.dll::WinHttpCloseHandle
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::GetVolumeInformationW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AllocConsole
KERNEL32.dll::WriteConsoleW
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileW
KERNEL32.dll::GetFileAttributesW
KERNEL32.dll::FindFirstFileW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
ADVAPI32.dll::LookupAccountSidW
ADVAPI32.dll::LookupPrivilegeValueW
WIN_HTTP_APIUses HTTP servicesWINHTTP.dll::WinHttpConnect
WINHTTP.dll::WinHttpOpenRequest
WINHTTP.dll::WinHttpOpen
WINHTTP.dll::WinHttpReceiveResponse
WINHTTP.dll::WinHttpSendRequest
WIN_NETWORK_APISupports Windows NetworkingMPR.dll::WNetEnumResourceW
MPR.dll::WNetOpenEnumW
MPR.dll::WNetUseConnectionW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_SOCK_APIUses Network to send and receive dataWS2_32.dll::WSAAddressToStringW

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