MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 43f846c12c24a078ebe33f71e8ea3b4f75107aeb275e2c3cd9dc61617c9757fc. 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: 16
| SHA256 hash: | 43f846c12c24a078ebe33f71e8ea3b4f75107aeb275e2c3cd9dc61617c9757fc |
|---|---|
| SHA3-384 hash: | 7501ebc0ce52bb3e2dbafe489cd9d25f36cc9f6ab0a2c1aff39f8d4faa05b599bacd5641a2399285fa3d56c0d7314643 |
| SHA1 hash: | 8b5a21254a0c10e3ca2570eeba490755197b544e |
| MD5 hash: | 4e93c194b641d9b849f270531ec14d20 |
| humanhash: | vermont-december-nitrogen-finch |
| File name: | 43f846c12c24a078ebe33f71e8ea3b4f75107aeb275e2c3cd9dc61617c9757fc |
| Download: | download sample |
| Signature | Phobos |
| File size: | 56'832 bytes |
| First seen: | 2024-04-25 02:44:56 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 851a0ba8fbb71710075bdfe6dcef92eb (67 x Phobos, 2 x Worm.Ramnit) |
| ssdeep | 1536:YNeRBl5PT/rx1mzwRMSTdLpJZtqoQOcO:YQRrmzwR5JAOF |
| Threatray | 165 similar samples on MalwareBazaar |
| TLSH | T1E943BF06705A84B3CEB281B0253A6F5B4EFB600544A484574F3D4EDB3ED9076EB3937A |
| 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 |  asdaa |
| Tags: | exe Phobos |
Intelligence
File Origin
# of uploads :
1
# of downloads :
576
Origin country :
USVendor Threat Intelligence
Malware family:
phobos
ID:
1
File name:
43f846c12c24a078ebe33f71e8ea3b4f75107aeb275e2c3cd9dc61617c9757fc
Verdict:
Malicious activity
Analysis date:
2024-04-25 02:37:43 UTC
Tags:
ransomware phobos
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
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
Replacing executable files
Launching the process to change the firewall settings
Creating a file in the Program Files directory
Creating a file in the Program Files subdirectories
Moving a file to the Program Files subdirectory
Launching a process
Creating a file in the %AppData% subdirectories
Creating a window
Using the Windows Management Instrumentation requests
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
Infecting executable files
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
filecoder fingerprint lolbin packed phobos ransomware shell32 threat virus xpack
Verdict:
Malicious
Labled as:
Malware
Malware family:
Phobos Ransomware
Verdict:
Malicious
Result
Threat name:
Phobos
Detection:
malicious
Classification:
rans.spre.adwa.evad.spyw
Score:
100 / 100
Signature
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 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
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Threat name:
Win32.Ransomware.Phobos
Status:
Malicious
First seen:
2020-12-04 10:03:48 UTC
File Type:
PE (Exe)
AV detection:
24 of 24 (100.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 155 additional samples on MalwareBazaar
Result
Malware family:
phobos
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
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
Phobos
Unpacked files
SH256 hash:
43f846c12c24a078ebe33f71e8ea3b4f75107aeb275e2c3cd9dc61617c9757fc
MD5 hash:
4e93c194b641d9b849f270531ec14d20
SHA1 hash:
8b5a21254a0c10e3ca2570eeba490755197b544e
Detections:
win_phobos_auto
MALWARE_Win_Phobos
Malware family:
Dharma
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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.
No further information available
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
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (HIGH_ENTROPY_VA) | high |
Reviews
| ID | Capabilities | Evidence |
|---|---|---|
| AUTH_API | Manipulates User Authorization | ADVAPI32.dll::AllocateAndInitializeSid ADVAPI32.dll::EqualSid ADVAPI32.dll::FreeSid |
| SECURITY_BASE_API | Uses Security Base API | ADVAPI32.dll::AdjustTokenPrivileges ADVAPI32.dll::DuplicateTokenEx ADVAPI32.dll::GetTokenInformation |
| SHELL_API | Manipulates System Shell | SHELL32.dll::ShellExecuteExW |
| WIN32_PROCESS_API | Can Create Process and Threads | KERNEL32.dll::CreateProcessW KERNEL32.dll::OpenProcess ADVAPI32.dll::OpenProcessToken WINHTTP.dll::WinHttpCloseHandle KERNEL32.dll::CloseHandle KERNEL32.dll::CreateThread |
| WIN_BASE_API | Uses Win Base API | KERNEL32.dll::TerminateProcess KERNEL32.dll::GetVolumeInformationW |
| WIN_BASE_EXEC_API | Can Execute other programs | KERNEL32.dll::AllocConsole KERNEL32.dll::WriteConsoleW |
| WIN_BASE_IO_API | Can Create Files | KERNEL32.dll::CopyFileW KERNEL32.dll::CreateFileW KERNEL32.dll::DeleteFileW KERNEL32.dll::MoveFileW KERNEL32.dll::GetFileAttributesW KERNEL32.dll::FindFirstFileW |
| WIN_BASE_USER_API | Retrieves Account Information | KERNEL32.dll::GetComputerNameW ADVAPI32.dll::LookupAccountSidW ADVAPI32.dll::LookupPrivilegeValueW |
| WIN_HTTP_API | Uses HTTP services | WINHTTP.dll::WinHttpConnect WINHTTP.dll::WinHttpOpenRequest WINHTTP.dll::WinHttpOpen WINHTTP.dll::WinHttpReceiveResponse WINHTTP.dll::WinHttpSendRequest |
| WIN_NETWORK_API | Supports Windows Networking | MPR.dll::WNetEnumResourceW MPR.dll::WNetOpenEnumW MPR.dll::WNetUseConnectionW |
| WIN_REG_API | Can Manipulate Windows Registry | ADVAPI32.dll::RegOpenKeyExW ADVAPI32.dll::RegQueryValueExW ADVAPI32.dll::RegSetValueExW |
| WIN_SOCK_API | Uses Network to send and receive data | WS2_32.dll::WSAAddressToStringW |
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