MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bc3b5ef9b1dc2f1b6a23b138c4c7b047479d98dfbdf216097c08a68c2f771732. 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
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SHA256 hash: bc3b5ef9b1dc2f1b6a23b138c4c7b047479d98dfbdf216097c08a68c2f771732
SHA3-384 hash: 6c271919b3ecc35fbd51c0c6316745d2ba156c2195467df9738a29d66f90add37bf1fbcd30a239e456e8eb1ffb5badc6
SHA1 hash: d8df24afe3e378017660648d88e4fd73e2c4e16b
MD5 hash: f7352e7f837f64fb08008a0edcfe5261
humanhash: lima-don-sodium-cat
File name:bc3b5ef9b1dc2f1b6a23b138c4c7b047479d98dfbdf216097c08a68c2f771732
Download: download sample
Signature Phobos
Create hunting rule
File size:57'344 bytes
First seen:2022-12-30 10:28:53 UTC
Last seen:2023-01-24 20:48:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 851a0ba8fbb71710075bdfe6dcef92eb (67 x Phobos, 2 x Worm.Ramnit)
ssdeep 1536:gNeRBl5PT/rx1mzwRMSTdLpJ5qE4ROWUur:gQRrmzwR5Jk/Uur
Threatray 3'709 similar samples on MalwareBazaar
TLSH T12F43BF06706984B2CE7146B0293A6F5F8E7FB105807480578F3C4E8A3ED5576E73A37A
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

Intelligence

File Origin
# of uploads :
2
# of downloads :
235
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
phobos
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ID:
1
File name:
bc3b5ef9b1dc2f1b6a23b138c4c7b047479d98dfbdf216097c08a68c2f771732
Verdict:
Malicious activity
Analysis date:
2022-12-30 10:30:35 UTC
Tags:
ransomware phobos
Link:
https://app.any.run/tasks/ac6709c4-e5bd-4e4b-9964-2b9e9d13fba7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Ransomware.Ulise-7594403-0
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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
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
Moving a file to the Program Files subdirectory
Launching the process to change the firewall settings
Creating a file in the %AppData% subdirectories
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
Enabling autorun for a service
Preventing system recovery
Enabling autorun by creating a file
Infecting executable files
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
greyware packed shell32.dll
Link:
https://www.filescan.io/uploads/63aebd700e926711fd75c5b9/reports/1bdd5ea0-6cf0-4c66-a1b2-295e185747d4/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/41b09011-f7e5-4611-b014-0ee23df39bd3
Result
Threat name:
Unknown
Detection:
malicious
Classification:
rans.spre.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1143151
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 775881 Sample: AZCPUEm2qM.exe Startdate: 30/12/2022 Architecture: WINDOWS Score: 100 59 Malicious sample detected (through community Yara rule) 2->59 61 Antivirus detection for dropped file 2->61 63 Antivirus / Scanner detection for submitted sample 2->63 65 6 other signatures 2->65 9 AZCPUEm2qM.exe 1 501 2->9         started        13 AZCPUEm2qM.exe 2->13         started        15 wbengine.exe 3 2->15         started        17 5 other processes 2->17 process3 file4 53 C:\ProgramData\Microsoft\...\AZCPUEm2qM.exe, PE32 9->53 dropped 55 C:\...\AZCPUEm2qM.exe:Zone.Identifier, ASCII 9->55 dropped 57 desktop.ini.id[BA3...ght@email.tg].magic, data 9->57 dropped 75 Creates files in the recycle bin to hide itself 9->75 77 Drops PE files to the startup folder 9->77 79 Infects executable files (exe, dll, sys, html) 9->79 19 cmd.exe 1 9->19         started        22 AZCPUEm2qM.exe 2 6 9->22         started        25 cmd.exe 9->25         started        81 Antivirus detection for dropped file 13->81 83 Multi AV Scanner detection for dropped file 13->83 85 Machine Learning detection for dropped file 13->85 87 Found evasive API chain (may stop execution after checking locale) 13->87 89 Creates files inside the volume driver (system volume information) 15->89 signatures5 process6 file7 67 May disable shadow drive data (uses vssadmin) 19->67 69 Deletes shadow drive data (may be related to ransomware) 19->69 71 Uses netsh to modify the Windows network and firewall settings 19->71 73 3 other signatures 19->73 27 WMIC.exe 1 19->27         started        29 bcdedit.exe 8 1 19->29         started        31 bcdedit.exe 7 1 19->31         started        39 3 other processes 19->39 45 C:\Users\user\AppData\...\AZCPUEm2qM.exe, PE32 22->45 dropped 47 C:\Users\user\AppData\Local\AZCPUEm2qM.exe, PE32 22->47 dropped 49 C:\Users\...\AZCPUEm2qM.exe:Zone.Identifier, ASCII 22->49 dropped 51 C:\Users\...\AZCPUEm2qM.exe:Zone.Identifier, ASCII 22->51 dropped 33 netsh.exe 3 25->33         started        35 netsh.exe 3 25->35         started        37 conhost.exe 25->37         started        signatures8 process9 process10 41 MpCmdRun.exe 27->41         started        process11 43 conhost.exe 41->43         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bc3b5ef9b1dc2f1b6a23b138c4c7b047479d98dfbdf216097c08a68c2f771732/
Threat name:
Win32.Ransomware.Phobos
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Status:
Malicious
First seen:
2022-12-29 13:05:00 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=xq5v56nr3qxrw2rdwe4mjr5qi5dz3gg7xxzbmcl4bctiyl3xc4za._file
Verdict:
malicious
Similar samples:
1e3d1dce864ea7544e10a2758f11fafacd39a0cfc7022e3493d6a25dbaffb6c3
Phobos
231bba5652f6fbdbab3016362fb7925fc4e4489fff5e6a4a98c37fba5bd0cfe9
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3f88affd9a69bad96f8152c87654aed50cc7a49247f154d503cacbdcd53ba825
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81a5ac22ffef8e50131f663708e5f579e1d74c0464994a909cd3426be6887a4a
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84ad231f0d74cd4bed8da0fbfc6801fc77424ee74a560e0d3175aa37b4ecab23
Phobos
992dad791a523f2c0a0b5a74c08e5573905f301d8891db0ed6e885face9ef0e2
Phobos
c8d9a9758516d5a8936bd3bc01a9997fb677ed1dc54081caa985883935ff092b
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f1e3ec3fe9b4347019a298a11db3a2c357e91b61b7152dc28b4ecef57968dbbb
Phobos
+ 3'699 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-mh8h9sfd64/
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/33b43653-ba3b-4118-871f-2ba5ae1354e5
Unpacked files
SH256 hash:
bc3b5ef9b1dc2f1b6a23b138c4c7b047479d98dfbdf216097c08a68c2f771732
MD5 hash:
f7352e7f837f64fb08008a0edcfe5261
SHA1 hash:
d8df24afe3e378017660648d88e4fd73e2c4e16b
Link:
https://www.unpac.me/results/e46442c6-576c-4639-bc52-84e80e7f9696/
Malware family:
Dharma
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bc3b5ef9b1dc/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/bc3b5ef9b1dc2f1b6a23b138c4c7b047479d98dfbdf216097c08a68c2f771732

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
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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.

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