MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 84ad231f0d74cd4bed8da0fbfc6801fc77424ee74a560e0d3175aa37b4ecab23. 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 2 File information Comments

SHA256 hash: 84ad231f0d74cd4bed8da0fbfc6801fc77424ee74a560e0d3175aa37b4ecab23
SHA3-384 hash: 1989d468c1c4e425a449904f55ba4cfef557510755a44633d7748813d49a9161dfc1a2c3cd26538bb3f1af56e70a22cd
SHA1 hash: 83c1841f67d81d90aec1217766721bbb6856973e
MD5 hash: 578244d3c1afbe8009f04bbc9eb54076
humanhash: vegan-gee-march-arkansas
File name:84ad231f0d74cd4bed8da0fbfc6801fc77424ee74a560e0d3175aa37b4ecab23
Download: download sample
Signature Phobos
File size:56'832 bytes
First seen:2022-12-19 09:25:30 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 851a0ba8fbb71710075bdfe6dcef92eb (67 x Phobos, 2 x Worm.Ramnit)
ssdeep 1536:ENeRBl5PT/rx1mzwRMSTdLpJtsbChoirP:EQRrmzwR5JqcZ
Threatray 3'629 similar samples on MalwareBazaar
TLSH T10F43BF46746D40B2CE718AB0293A7F5B4FBEA10540B4949B4F390D963ED5132D72A3BB
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 petikvx
Tags:exe Phobos Ransomware

Intelligence


File Origin
# of uploads :
1
# of downloads :
521
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
84ad231f0d74cd4bed8da0fbfc6801fc77424ee74a560e0d3175aa37b4ecab23
Verdict:
Malicious activity
Analysis date:
2022-12-19 09:34:32 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
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
Modifying an executable file
Changing a file
Replacing executable files
Creating a file in the Program Files directory
Creating a file in the Program Files subdirectories
Launching the process to change network settings
Moving a file to the Program Files subdirectory
Launching the process to change the firewall settings
Moving a file to the %AppData% subdirectory
Launching a process
Creating a window
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:
Unknown
Detection:
malicious
Classification:
rans.spre.adwa.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
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: 769757 Sample: 1SS0KGk81f.exe Startdate: 19/12/2022 Architecture: WINDOWS Score: 100 64 Malicious sample detected (through community Yara rule) 2->64 66 Antivirus detection for dropped file 2->66 68 Antivirus / Scanner detection for submitted sample 2->68 70 7 other signatures 2->70 7 1SS0KGk81f.exe 1 263 2->7         started        11 1SS0KGk81f.exe 2->11         started        13 wbengine.exe 3 2->13         started        15 5 other processes 2->15 process3 file4 48 C:\ProgramData\Microsoft\...\1SS0KGk81f.exe, PE32 7->48 dropped 50 C:\...\1SS0KGk81f.exe:Zone.Identifier, ASCII 7->50 dropped 52 desktop.ini.id[784...n@airmail.cc].faust, data 7->52 dropped 72 Creates files in the recycle bin to hide itself 7->72 74 Drops PE files to the startup folder 7->74 76 Infects executable files (exe, dll, sys, html) 7->76 17 cmd.exe 1 7->17         started        20 1SS0KGk81f.exe 2 6 7->20         started        24 cmd.exe 7->24         started        78 Antivirus detection for dropped file 11->78 80 Multi AV Scanner detection for dropped file 11->80 82 Machine Learning detection for dropped file 11->82 84 Found evasive API chain (may stop execution after checking locale) 11->84 86 Creates files inside the volume driver (system volume information) 13->86 signatures5 process6 dnsIp7 56 May disable shadow drive data (uses vssadmin) 17->56 58 Deletes shadow drive data (may be related to ransomware) 17->58 60 Uses netsh to modify the Windows network and firewall settings 17->60 62 3 other signatures 17->62 26 bcdedit.exe 8 1 17->26         started        28 bcdedit.exe 7 1 17->28         started        30 conhost.exe 17->30         started        38 3 other processes 17->38 54 192.168.2.1 unknown unknown 20->54 40 C:\Users\user\AppData\...\1SS0KGk81f.exe, PE32 20->40 dropped 42 C:\Users\user\AppData\Local\1SS0KGk81f.exe, PE32 20->42 dropped 44 C:\Users\...\1SS0KGk81f.exe:Zone.Identifier, ASCII 20->44 dropped 46 C:\Users\...\1SS0KGk81f.exe:Zone.Identifier, ASCII 20->46 dropped 32 netsh.exe 3 24->32         started        34 netsh.exe 3 24->34         started        36 conhost.exe 24->36         started        file8 signatures9 process10
Threat name:
Win32.Ransomware.Phobos
Status:
Malicious
First seen:
2022-12-17 12:09:55 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)
Checks computer location settings
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:
84ad231f0d74cd4bed8da0fbfc6801fc77424ee74a560e0d3175aa37b4ecab23
MD5 hash:
578244d3c1afbe8009f04bbc9eb54076
SHA1 hash:
83c1841f67d81d90aec1217766721bbb6856973e
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
Rule name:Windows_Ransomware_Phobos_11ea7be5
Author:Elastic Security
Description:Identifies Phobos ransomware
Reference:https://malpedia.caad.fkie.fraunhofer.de/details/win.phobos

File information


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

Comments