MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2a8353551d099c78ac100b44718a691142f8cc7879b47e842ee8491426e15c08. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2a8353551d099c78ac100b44718a691142f8cc7879b47e842ee8491426e15c08
SHA3-384 hash: 91aa785855fcab0573d6712bdd9e311bdfd8af52fc78abc1f866158bbd3a3f6f7c2adc4853177ea171c8eae7a7d802f4
SHA1 hash: abe66e0123a837890ff0f64039e5cc9b91549866
MD5 hash: ec656f2e9d53e5c30ae03301cc4348ea
humanhash: hotel-kentucky-echo-arizona
File name:2024-06-25_ec656f2e9d53e5c30ae03301cc4348ea_phobos
Download: download sample
Signature Phobos
Create hunting rule
File size:56'832 bytes
First seen:2024-06-30 03:51:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 851a0ba8fbb71710075bdfe6dcef92eb (67 x Phobos, 2 x Worm.Ramnit)
ssdeep 1536:YNeRBl5PT/rx1mzwRMSTdLpJZtqoQOcO:YQRrmzwR5JAOF
Threatray 173 similar samples on MalwareBazaar
TLSH T16A43BF06705A84B3CEB281B0253A6F5B4EFB600544A484574F3D4EDB3ED9076EB3937A
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 Ransomware

Intelligence

File Origin
# of uploads :
1
# of downloads :
885
Origin country :
US US
Vendor Threat Intelligence
Detection(s):
Win.Ransomware.Ulise-7594403-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6680d66817db6c2841b259c3win10vpnfull_triage
Tags:
Execution Generic Network Other Ransomware Stealth Phobos
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
Moving a file to the %AppData% subdirectory
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
Infecting executable files
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
dharma filecoder fingerprint lolbin microsoft_visual_cc packed phobos ransomware shell32 xpack
Link:
https://www.filescan.io/uploads/6680d626ef9fdf64aa70a1ef/reports/ee561fed-12e9-4260-b790-6ea70c605156/overview
Verdict:
Malicious
Labled as:
Trojan.Filecoder
Link:
https://www.hybrid-analysis.com/sample/2a8353551d099c78ac100b44718a691142f8cc7879b47e842ee8491426e15c08
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e4f4f3f6-40c2-4fe1-b9c1-de94d5866bb4
Result
Threat name:
Phobos
Create hunting rule
Detection:
malicious
Classification:
rans.spre.adwa.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1464790
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 PE files to the startup folder
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1464790 Sample: 8w5PsTs6PG.exe Startdate: 30/06/2024 Architecture: WINDOWS Score: 100 74 Malicious sample detected (through community Yara rule) 2->74 76 Antivirus / Scanner detection for submitted sample 2->76 78 Multi AV Scanner detection for dropped file 2->78 80 8 other signatures 2->80 7 8w5PsTs6PG.exe 4 1003 2->7         started        11 8w5PsTs6PG.exe 2->11         started        13 wbengine.exe 2->13         started        15 6 other processes 2->15 process3 file4 54 C:\ProgramData\Microsoft\...\8w5PsTs6PG.exe, PE32 7->54 dropped 56 C:\...\8w5PsTs6PG.exe:Zone.Identifier, ASCII 7->56 dropped 58 ahclient.dll.id[72...ffit@aol.com].eight, OpenPGP 7->58 dropped 60 46 other files (45 malicious) 7->60 dropped 82 Creates files in the recycle bin to hide itself 7->82 84 Drops PE files to the startup folder 7->84 86 Writes many files with high entropy 7->86 88 Infects executable files (exe, dll, sys, html) 7->88 17 cmd.exe 1 7->17         started        20 cmd.exe 7->20         started        22 8w5PsTs6PG.exe 2 6 7->22         started        25 4 other processes 7->25 90 Multi AV Scanner detection for dropped file 11->90 92 Creates files inside the volume driver (system volume information) 13->92 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 vssadmin.exe 1 17->27         started        30 conhost.exe 17->30         started        32 WMIC.exe 17->32         started        42 3 other processes 17->42 70 Uses bcdedit to modify the Windows boot settings 20->70 72 Deletes the backup plan of Windows 20->72 34 vssadmin.exe 20->34         started        44 5 other processes 20->44 46 C:\Users\user\AppData\...\8w5PsTs6PG.exe, PE32 22->46 dropped 48 C:\Users\user\AppData\Local\8w5PsTs6PG.exe, PE32 22->48 dropped 50 C:\Users\...\8w5PsTs6PG.exe:Zone.Identifier, ASCII 22->50 dropped 52 C:\Users\...\8w5PsTs6PG.exe:Zone.Identifier, ASCII 22->52 dropped 36 netsh.exe 2 25->36         started        38 conhost.exe 25->38         started        40 netsh.exe 25->40         started        signatures8 process9 signatures10 94 Deletes shadow drive data (may be related to ransomware) 27->94
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/2a8353551d099c78ac100b44718a691142f8cc7879b47e842ee8491426e15c08
Detection:
phobos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2a8353551d099c78ac100b44718a691142f8cc7879b47e842ee8491426e15c08/
Threat name:
Win32.Ransomware.Phobos
Create hunting rule
Status:
Malicious
First seen:
2024-06-25 12:41:33 UTC
File Type:
PE (Exe)
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fkbvgvi5bgohrlaqbnchdctjcfbprtdypg2h5bbo5berijxblqea._file
Verdict:
malicious
Similar samples:
2dcaca208625860f4eb114af4c4158368284eb99c994793d5ac66d3af654bf5f
Phobos
4d30670f6311dc373dcbfb5bd93cf1621b1d6c425c8c9a95dc0a1317d0bdf648
Phobos
7949bf3e09366bdb23ca7472cb6c4d9183ad5b081ac5a568d556aec8beae0785
Phobos
c70ced34e4c01df4344e9ee4b2a42190f25ed6ac7543ee9c9579cb0ca8658256
Phobos
eb740005273c087baf42b0c3a49a7c5b7225256681106c72567db92fc2048ada
Phobos
+ 163 additional samples on MalwareBazaar
Result
Malware family:
phobos
Create hunting rule
Score:
  10/10
Tags:
family:phobos defense_evasion evasion execution impact persistence privilege_escalation ransomware spyware stealer
Link:
https://tria.ge/reports/240630-eegx5stdmb/
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)
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 (315) files with added filename extension
Phobos
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/7c690dae-0888-4f99-af16-2673e63e7474
Unpacked files
SH256 hash:
2a8353551d099c78ac100b44718a691142f8cc7879b47e842ee8491426e15c08
MD5 hash:
ec656f2e9d53e5c30ae03301cc4348ea
SHA1 hash:
abe66e0123a837890ff0f64039e5cc9b91549866
Detections:
win_phobos_auto
Create hunting rule
MALWARE_Win_Phobos
Create hunting rule
Link:
https://www.unpac.me/results/f03278db-c4da-4155-9af1-ca7e3c403922/
Malware family:
Dharma
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2a8353551d09/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/2a8353551d099c78ac100b44718a691142f8cc7879b47e842ee8491426e15c08

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
Create hunting rule
Author:Yashraj Solanki - Cyber Threat Intelligence Analyst at Bridewell
Rule name:MALWARE_Win_Phobos
Create hunting rule
Author:ditekshen
Description:Detects Phobos ransomware
Rule name:Windows_Ransomware_Phobos_11ea7be5
Create hunting rule
Author:Elastic Security
Description:Identifies Phobos ransomware
Reference:https://malpedia.caad.fkie.fraunhofer.de/details/win.phobos
Rule name:win_phobos_auto
Create hunting rule
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
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
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

Comments