MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 104032d8993555a84679746069ad1f8c1365c4a27eaeec732fda76aa62da005a. 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 4 File information Comments

SHA256 hash: 104032d8993555a84679746069ad1f8c1365c4a27eaeec732fda76aa62da005a
SHA3-384 hash: 46fd0577e99b8123980d1c63d27f353c26752d714bbd802ac9ea9a25d7f081981a73f746c5d2cbc8ba270f06629246fc
SHA1 hash: 3dd6bb5a8786eb073a6f7d26454a8ddbffbbe48f
MD5 hash: 8581a33bb410c7674705ca163c6f75ad
humanhash: venus-london-hotel-snake
File name:8581a33bb410c7674705ca163c6f75ad.exe
Download: download sample
Signature Phobos
File size:278'016 bytes
First seen:2023-09-08 08:02:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'477 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:ymJUPTQVx/LACZmikqYGlJfOuwOFZ/QlUvt0NFQp/TDOkUFahk99:v6cLA0cqYd0FxQlU0Nup/TDOkUFahk9
Threatray 3'045 similar samples on MalwareBazaar
TLSH T1874422949E49D20BC2B717BA9812A658C335C976F253DB0E10DE5A7AF84E7D03D80EF4
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter abuse_ch
Tags:exe Phobos

Intelligence


File Origin
# of uploads :
1
# of downloads :
322
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
8581a33bb410c7674705ca163c6f75ad.exe
Verdict:
Malicious activity
Analysis date:
2023-09-08 08:06:13 UTC
Tags:
ransomware

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
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Launching a service
Launching cmd.exe command interpreter
Creating a process with a hidden window
Sending a custom TCP request
Searching for synchronization primitives
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
Moving a file to the %AppData% subdirectory
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
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
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:
Phobos, TrojanRansom, Voidcrypt
Detection:
malicious
Classification:
rans.spre.phis.adwa.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates files in the recycle bin to hide itself
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)
Injects a PE file into a foreign processes
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
Overwrites Mozilla Firefox settings
Sigma detected: Delete shadow copy via WMIC
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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
Writes many files with high entropy
Yara detected Costura Assembly Loader
Yara detected Phobos
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1305977 Sample: 3TMA0BpTuG.exe Startdate: 08/09/2023 Architecture: WINDOWS Score: 100 70 Malicious sample detected (through community Yara rule) 2->70 72 Antivirus detection for dropped file 2->72 74 Antivirus / Scanner detection for submitted sample 2->74 76 8 other signatures 2->76 8 3TMA0BpTuG.exe 3 2->8         started        11 3TMA0BpTuG.exe 2 2->11         started        13 3TMA0BpTuG.exe 2->13         started        process3 signatures4 88 Drops PE files to the startup folder 8->88 90 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->90 92 Writes many files with high entropy 8->92 15 3TMA0BpTuG.exe 4 503 8->15         started        19 3TMA0BpTuG.exe 8->19         started        94 Antivirus detection for dropped file 11->94 96 Multi AV Scanner detection for dropped file 11->96 98 Machine Learning detection for dropped file 11->98 100 Found evasive API chain (may stop execution after checking locale) 11->100 21 3TMA0BpTuG.exe 11->21         started        102 Injects a PE file into a foreign processes 13->102 process5 file6 54 3870112724rsegmnoi...rexsdata.pro].8base, CLIPPER 15->54 dropped 56 1657114595Amcateir...rexsdata.pro].8base, COM 15->56 dropped 58 C:\ProgramData\Microsoft\...\3TMA0BpTuG.exe, PE32 15->58 dropped 60 57 other malicious files 15->60 dropped 62 Creates files in the recycle bin to hide itself 15->62 64 Overwrites Mozilla Firefox settings 15->64 66 Tries to harvest and steal browser information (history, passwords, etc) 15->66 68 Infects executable files (exe, dll, sys, html) 15->68 23 cmd.exe 1 15->23         started        26 3TMA0BpTuG.exe 2 15->26         started        28 cmd.exe 15->28         started        signatures7 process8 signatures9 78 May disable shadow drive data (uses vssadmin) 23->78 80 Deletes shadow drive data (may be related to ransomware) 23->80 82 Uses netsh to modify the Windows network and firewall settings 23->82 86 3 other signatures 23->86 30 vssadmin.exe 1 23->30         started        33 conhost.exe 23->33         started        35 WMIC.exe 23->35         started        37 bcdedit.exe 23->37         started        84 Injects a PE file into a foreign processes 26->84 39 3TMA0BpTuG.exe 1 6 26->39         started        42 3TMA0BpTuG.exe 26->42         started        44 netsh.exe 2 28->44         started        46 conhost.exe 28->46         started        48 netsh.exe 28->48         started        process10 file11 104 Deletes shadow drive data (may be related to ransomware) 30->104 50 C:\Users\user\AppData\...\3TMA0BpTuG.exe, PE32 39->50 dropped 52 C:\Users\user\AppData\Local\3TMA0BpTuG.exe, PE32 39->52 dropped signatures12
Threat name:
Win32.Trojan.Synder
Status:
Malicious
First seen:
2023-09-08 07:54:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
19 of 24 (79.17%)
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
Uses Task Scheduler COM API
Uses Volume Shadow Copy service COM API
Enumerates physical storage devices
Drops file in Program Files directory
Suspicious use of SetThreadContext
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 (320) files with added filename extension
Renames multiple (471) files with added filename extension
Phobos
Unpacked files
SH256 hash:
e95678e4e4b46587616cdddf19ca3732559dedda0e53885846b0bf71b8033436
MD5 hash:
86c88f0d733bf8a6272f4850b49c4e33
SHA1 hash:
fd1343dfe7f4213ef49999e2a8ec6e015998216f
SH256 hash:
a5d5ad75631e7650bf04c0d10d0d8bd0228a69757284d92085cb6cb3d67bf46e
MD5 hash:
d5398a787b7911c78dc2f10c58fa04f4
SHA1 hash:
dde316fc26e70c44b4e93da57a927d5078988e92
SH256 hash:
b4b89828380c4781c7beafa6dce00ae38cd4adc13ad56792996e28c41def5c53
MD5 hash:
966061cecee2b65fe7149dfa1d0f2c3a
SHA1 hash:
691ed7b6c4c0bdd824ede0514aacda9d7adc51f1
SH256 hash:
adb9b74b1d3653adc2c00c0c227b4bb37334bcf673d362d62a25e7dd431a7d29
MD5 hash:
730ee56124e16a88da6bf4eaf7e2c750
SHA1 hash:
2de814edfeca91e2d7d9c51dd7b8857f9d88a6ce
SH256 hash:
104032d8993555a84679746069ad1f8c1365c4a27eaeec732fda76aa62da005a
MD5 hash:
8581a33bb410c7674705ca163c6f75ad
SHA1 hash:
3dd6bb5a8786eb073a6f7d26454a8ddbffbbe48f
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:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Web download

Phobos

Executable exe 104032d8993555a84679746069ad1f8c1365c4a27eaeec732fda76aa62da005a

(this sample)

  
Delivery method
Distributed via web download

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