MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 25dce15057f3e9f904ea28e039fe0d2945308d7f41ea5386e99af4840c2e6762. 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: 15


Intelligence 15 IOCs YARA 1 File information Comments

SHA256 hash: 25dce15057f3e9f904ea28e039fe0d2945308d7f41ea5386e99af4840c2e6762
SHA3-384 hash: 39b04687cb960ea14c4b5aa9db766bb6e468cd36a1f7099a3c3a21c74b1962dac3d0794ec540ea6e23b0eb2e44c58662
SHA1 hash: 13122e4d18672561479f988f850dd191c3431c78
MD5 hash: 57c5c9f7dd743b7f53fef622ddfaa455
humanhash: yankee-sierra-wolfram-ceiling
File name:25dce15057f3e9f904ea28e039fe0d2945308d7f41ea5386e99af4840c2e6762
Download: download sample
Signature Phobos
File size:4'194'283 bytes
First seen:2022-09-30 08:04:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 851a0ba8fbb71710075bdfe6dcef92eb (67 x Phobos, 2 x Worm.Ramnit)
ssdeep 1536:TNeRBl5PT/rx1mzwRMSTdLpJxO7SadI1Pa05g+78u:TQRrmzwR5Jwxd+v6+Y
Threatray 26 similar samples on MalwareBazaar
TLSH T1A316AF16705A84B2CDB28570293A6F5B4FFAA50500B494874F3E8EC63FE5435DB293BA
TrID 32.2% (.EXE) Win64 Executable (generic) (10523/12/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4505/5/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter petikvx
Tags:exe Phobos Ransomware

Intelligence


File Origin
# of uploads :
1
# of downloads :
582
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Launching a service
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
Launching the process to change network settings
Replacing executable files
Creating a file in the Program Files directory
Creating a file in the Program Files subdirectories
Sending a custom TCP request
Moving a file to the Program Files subdirectory
Launching the process to change the firewall settings
Launching a process
Creating a file in the Windows subdirectories
Creating a file in the %AppData% subdirectories
Deleting a recently created file
Creating a window
Network activity
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
Encrypting user's files
Infecting executable files
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Behaviour
MalwareBazaar
SystemUptime
CallSleep
EvasionGetTickCount
CheckMutex
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
filecoder greyware overlay packed phobos ransomware shell32.dll windows
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:
Unknown
Detection:
malicious
Classification:
rans.spre.adwa.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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)
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 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
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 713280 Sample: wLwm3V5dRP.exe Startdate: 30/09/2022 Architecture: WINDOWS Score: 100 61 Malicious sample detected (through community Yara rule) 2->61 63 Antivirus detection for dropped file 2->63 65 Antivirus / Scanner detection for submitted sample 2->65 67 7 other signatures 2->67 7 wLwm3V5dRP.exe 1 287 2->7         started        11 wLwm3V5dRP.exe 2->11         started        13 wbuser.exe 3 2->13         started        15 5 other processes 2->15 process3 file4 47 C:\ProgramData\Microsoft\...\wLwm3V5dRP.exe, PE32 7->47 dropped 49 C:\...\wLwm3V5dRP.exe:Zone.Identifier, ASCII 7->49 dropped 51 desktop.ini.id[77D...pressmail.ch].Devos, data 7->51 dropped 69 Creates files in the recycle bin to hide itself 7->69 71 Drops PE files to the startup folder 7->71 73 Tries to harvest and steal browser information (history, passwords, etc) 7->73 75 Infects executable files (exe, dll, sys, html) 7->75 17 cmd.exe 1 7->17         started        20 wLwm3V5dRP.exe 2 6 7->20         started        23 cmd.exe 7->23         started        77 Antivirus detection for dropped file 11->77 79 Machine Learning detection for dropped file 11->79 81 Found evasive API chain (may stop execution after checking locale) 11->81 83 Creates files inside the volume driver (system volume information) 13->83 signatures5 process6 file7 53 May disable shadow drive data (uses vssadmin) 17->53 55 Deletes shadow drive data (may be related to ransomware) 17->55 57 Uses netsh to modify the Windows network and firewall settings 17->57 59 3 other signatures 17->59 25 bcdedit.exe 8 1 17->25         started        27 bcdedit.exe 7 1 17->27         started        29 conhost.exe 17->29         started        37 3 other processes 17->37 39 C:\Users\user\AppData\...\wLwm3V5dRP.exe, PE32 20->39 dropped 41 C:\Users\user\AppData\Local\wLwm3V5dRP.exe, PE32 20->41 dropped 43 C:\Users\...\wLwm3V5dRP.exe:Zone.Identifier, ASCII 20->43 dropped 45 C:\Users\...\wLwm3V5dRP.exe:Zone.Identifier, ASCII 20->45 dropped 31 netsh.exe 3 23->31         started        33 netsh.exe 3 23->33         started        35 conhost.exe 23->35         started        signatures8 process9
Threat name:
Win32.Ransomware.Phobos
Status:
Malicious
First seen:
2022-09-29 18:39:49 UTC
File Type:
PE (Exe)
AV detection:
24 of 26 (92.31%)
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
Enumerates physical storage devices
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
Modifies extensions of user files
Deletes shadow copies
Modifies boot configuration data using bcdedit
Phobos
Suspicious use of NtCreateUserProcessOtherParentProcess
Unpacked files
SH256 hash:
25dce15057f3e9f904ea28e039fe0d2945308d7f41ea5386e99af4840c2e6762
MD5 hash:
57c5c9f7dd743b7f53fef622ddfaa455
SHA1 hash:
13122e4d18672561479f988f850dd191c3431c78
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:MALWARE_Win_Phobos
Author:ditekshen
Description:Detects Phobos ransomware

File information


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

Comments