MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c8d9a9758516d5a8936bd3bc01a9997fb677ed1dc54081caa985883935ff092b. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c8d9a9758516d5a8936bd3bc01a9997fb677ed1dc54081caa985883935ff092b
SHA3-384 hash: 0ea73b93d0787d751d8b4658ca661203291459acf301f427fd38066428b1520b6d14de145823db5c96cfc4e06f85ff3d
SHA1 hash: 6fef9bbee0ef34c8e0bbc2510eb14c7751329577
MD5 hash: 715bb8ece6c740ab68a9aa2f4eb0aa04
humanhash: cat-tango-zulu-lake
File name:c8d9a9758516d5a8936bd3bc01a9997fb677ed1dc54081caa985883935ff092b
Download: download sample
Signature Phobos
Create hunting rule
File size:57'344 bytes
First seen:2022-12-30 05:12:17 UTC
Last seen:2022-12-30 10:32:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 851a0ba8fbb71710075bdfe6dcef92eb (67 x Phobos, 2 x Worm.Ramnit)
ssdeep 1536:bNeRBl5PT/rx1mzwRMSTdLpJBRWvKIIGNOHRG47:bQRrmzwR5JTWSyIQw
Threatray 3'708 similar samples on MalwareBazaar
TLSH T13543BF4B705940B2CEA242B0253A6F5F8FBE950544B498478F394EC63ED5472EB3E37A
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 :
3
# of downloads :
582
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
phobos
Create hunting rule
ID:
1
File name:
c8d9a9758516d5a8936bd3bc01a9997fb677ed1dc54081caa985883935ff092b
Verdict:
Malicious activity
Analysis date:
2022-12-30 05:11:47 UTC
Tags:
ransomware phobos
Link:
https://app.any.run/tasks/80383ce7-2f0b-4cce-b0d5-fa38022a8196

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Ransomware.Ulise-7594403-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Replacing executable files
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 the process to change network settings
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
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:
crysis filecoder greyware packed phobos ransomware shell32.dll windows
Link:
https://www.filescan.io/uploads/63ae735e0e926711fd75b9d4/reports/e99482c8-d290-4e3c-8096-ec8f842cddab/overview
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/a3d346c3-179b-4744-9f7d-ef9e0cebe8b9
Result
Threat name:
Unknown
Detection:
malicious
Classification:
rans.spre.adwa.spyw.evad.phis
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1143058
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 775788 Sample: a4y6SANym2.exe Startdate: 30/12/2022 Architecture: WINDOWS Score: 100 65 Malicious sample detected (through community Yara rule) 2->65 67 Antivirus detection for dropped file 2->67 69 Antivirus / Scanner detection for submitted sample 2->69 71 7 other signatures 2->71 7 a4y6SANym2.exe 1 501 2->7         started        11 a4y6SANym2.exe 2->11         started        13 wbengine.exe 3 2->13         started        15 5 other processes 2->15 process3 file4 47 C:\ProgramData\Microsoft\...\a4y6SANym2.exe, PE32 7->47 dropped 49 C:\...\a4y6SANym2.exe:Zone.Identifier, ASCII 7->49 dropped 51 desktop.ini.id[60B...yberfear.com].Elbie, data 7->51 dropped 73 Creates files in the recycle bin to hide itself 7->73 75 Drops PE files to the startup folder 7->75 77 Tries to harvest and steal browser information (history, passwords, etc) 7->77 79 Infects executable files (exe, dll, sys, html) 7->79 17 cmd.exe 1 7->17         started        20 cmd.exe 7->20         started        22 a4y6SANym2.exe 2 6 7->22         started        81 Antivirus detection for dropped file 11->81 83 Multi AV Scanner detection for dropped file 11->83 85 Machine Learning detection for dropped file 11->85 87 Found evasive API chain (may stop execution after checking locale) 11->87 89 Creates files inside the volume driver (system volume information) 13->89 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 Modifies the windows firewall 17->59 25 netsh.exe 3 17->25         started        27 netsh.exe 3 17->27         started        29 conhost.exe 17->29         started        61 Uses bcdedit to modify the Windows boot settings 20->61 63 Deletes the backup plan of Windows 20->63 31 bcdedit.exe 8 1 20->31         started        33 bcdedit.exe 7 1 20->33         started        35 conhost.exe 20->35         started        37 3 other processes 20->37 39 C:\Users\user\AppData\...\a4y6SANym2.exe, PE32 22->39 dropped 41 C:\Users\user\AppData\Local\a4y6SANym2.exe, PE32 22->41 dropped 43 C:\Users\...\a4y6SANym2.exe:Zone.Identifier, ASCII 22->43 dropped 45 C:\Users\...\a4y6SANym2.exe:Zone.Identifier, ASCII 22->45 dropped signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c8d9a9758516d5a8936bd3bc01a9997fb677ed1dc54081caa985883935ff092b/
Threat name:
Win32.Ransomware.Phobos
Create hunting rule
Status:
Malicious
First seen:
2022-12-29 10:23:24 UTC
File Type:
PE (Exe)
AV detection:
24 of 26 (92.31%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zdm2s5mfc3k2re3l2o6adkmzp63hp3i5yvaidsvjqwedsnp7bevq._file
Verdict:
malicious
Similar samples:
0b4c743246478a6a8c9fa3ff8e04f297507c2f0ea5d61a1284fe65387d172f81
Phobos
1e3d1dce864ea7544e10a2758f11fafacd39a0cfc7022e3493d6a25dbaffb6c3
Phobos
231bba5652f6fbdbab3016362fb7925fc4e4489fff5e6a4a98c37fba5bd0cfe9
Phobos
3f88affd9a69bad96f8152c87654aed50cc7a49247f154d503cacbdcd53ba825
Phobos
81a5ac22ffef8e50131f663708e5f579e1d74c0464994a909cd3426be6887a4a
Phobos
84ad231f0d74cd4bed8da0fbfc6801fc77424ee74a560e0d3175aa37b4ecab23
Phobos
992dad791a523f2c0a0b5a74c08e5573905f301d8891db0ed6e885face9ef0e2
Phobos
f1e3ec3fe9b4347019a298a11db3a2c357e91b61b7152dc28b4ecef57968dbbb
Phobos
+ 3'698 additional samples on MalwareBazaar
Result
Malware family:
phobos
Create hunting rule
Score:
  10/10
Tags:
family:phobos evasion persistence ransomware spyware stealer
Link:
https://tria.ge/reports/221230-fwed1sfa45/
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
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/f7fe6f42-4fbf-4c94-9185-ab85b3c3c30a
Unpacked files
SH256 hash:
c8d9a9758516d5a8936bd3bc01a9997fb677ed1dc54081caa985883935ff092b
MD5 hash:
715bb8ece6c740ab68a9aa2f4eb0aa04
SHA1 hash:
6fef9bbee0ef34c8e0bbc2510eb14c7751329577
Link:
https://www.unpac.me/results/38ce5b39-e3ba-422e-886e-85d6b0692234/
Malware family:
Dharma
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c8d9a9758516/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.96
Link:
https://yomi.yoroi.company/submissions/c8d9a9758516d5a8936bd3bc01a9997fb677ed1dc54081caa985883935ff092b

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
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

File information

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

Comments