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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 44c55dd508b04f3e9a1efbd64b577f4dc0baa07ca3a090e6e227d3dcb724aa36. 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



PureRAT


Vendor detections: 12


Intelligence 12 IOCs YARA 30 File information Comments

SHA256 hash: 44c55dd508b04f3e9a1efbd64b577f4dc0baa07ca3a090e6e227d3dcb724aa36
SHA3-384 hash: a08dbbff8dffeba9f3f9e9c7e1dc7f4c26fb8cfc568853fdfe5d8b8559506ae9ef32e3e94664902099ef62e8cbdbb19b
SHA1 hash: 4d1587508f9d372e47b48017de4d43d8647204ad
MD5 hash: b45609ef7c74d58140bd864c13a16363
humanhash: saturn-may-stairway-sierra
File name:PC_Bypass.msi
Download: download sample
Signature PureRAT
File size:8'232'448 bytes
First seen:2026-10-26 19:07:12 UTC
Last seen:2026-10-26 19:23:40 UTC
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 49152:UZCKitd+vszAlozTy4g5z8+5eNBAkG8iAd4AHFphN/dBENJZvMdAem:4ihTy/OG8F4+FphN/d+lUd
TLSH T1B986DF21B383C136D56D0177E968FE5E1938BE730B3102E777E8396E59B48C1A279B42
TrID 80.0% (.MSI) Microsoft Windows Installer (454500/1/170)
10.7% (.MST) Windows SDK Setup Transform script (61000/1/5)
7.8% (.MSP) Windows Installer Patch (44509/10/5)
1.4% (.) Generic OLE2 / Multistream Compound (8000/1)
Magika msi
Reporter JaffaCakes118
Tags:msi PureRAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
79
Origin country :
FR FR
Vendor Threat Intelligence
Verdict:
Malicious
Score:
70%
Tags:
shellcode
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
active-directory anti-debug base64 CAB cmd expired-cert fingerprint installer lolbin msiexec overlay packed reconnaissance reconnaissance short-lived-cert wix
Verdict:
Malicious
File Type:
msi
First seen:
2026-10-26T16:13:00Z UTC
Last seen:
2026-10-26T16:25:00Z UTC
Hits:
~10
Detections:
HEUR:Trojan.Win32.Agent.gen
Result
Threat name:
n/a
Detection:
malicious
Classification:
spyw.evad
Score:
100 / 100
Signature
Drops executables to the windows directory (C:\Windows) and starts them
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
PE file has a writeable .text section
Queries memory information (via WMI often done to detect virtual machines)
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines)
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
Suricata IDS alerts for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal Bitcoin Wallet information
Unusual module load detection (module proxying)
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1993042 Sample: PC_Bypass.msi Startdate: 27/10/2026 Architecture: WINDOWS Score: 100 43 mkrc4gcg1cd1fib77ebkcxmcywflhizkwycqshnhsu20d8.com 2->43 45 m79lwsfsu1plag8g4ae0lkic6svvqf1m6as0ezebb7ula02bgmmhbvd6.com 2->45 57 Suricata IDS alerts for network traffic 2->57 59 Multi AV Scanner detection for submitted file 2->59 61 PE file has a writeable .text section 2->61 63 Joe Sandbox ML detected suspicious sample 2->63 7 regsvr32.exe 2->7         started        9 msiexec.exe 15 42 2->9         started        13 regsvr32.exe 2->13         started        15 4 other processes 2->15 signatures3 process4 file5 17 regsvr32.exe 3 2 7->17         started        33 C:\Windows\Installer\MSI3DB9.tmp, PE32 9->33 dropped 35 C:\Windows\Installer\MSI3BF2.tmp, PE32 9->35 dropped 37 C:\Windows\Installer\MSI3B64.tmp, PE32 9->37 dropped 39 4 other files (none is malicious) 9->39 dropped 65 Drops executables to the windows directory (C:\Windows) and starts them 9->65 21 msiexec.exe 9->21         started        23 MSI3DB9.tmp 9->23         started        25 regsvr32.exe 13->25         started        27 regsvr32.exe 15->27         started        29 regsvr32.exe 15->29         started        31 regsvr32.exe 15->31         started        signatures6 process7 dnsIp8 41 196.251.107.244, 49719, 49720, 56001 FEMOITGB Germany 17->41 47 System process connects to network (likely due to code injection or exploit) 17->47 49 Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines) 17->49 51 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 17->51 55 4 other signatures 17->55 53 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 25->53 signatures9
Verdict:
inconclusive
YARA:
6 match(es)
Tags:
CAB:COMPRESSION:MSZIP Executable Office Document PDB Path PE (Portable Executable) PE File Layout SVG T1059.007 UPX
Threat name:
Win32.Trojan.Generic
Status:
Suspicious
First seen:
2026-10-26 19:08:25 UTC
File Type:
Binary (Archive)
Extracted files:
58
AV detection:
8 of 36 (22.22%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery persistence privilege_escalation
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Event Triggered Execution: Installer Packages
System Location Discovery: System Language Discovery
Drops file in Windows directory
Enumerates connected drives
ACProtect 1.3x - 1.4x DLL software
Executes dropped EXE
Loads dropped DLL
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:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Detect_MSI_LATAM_Banker_From_LatAm
Rule name:Detect_SliverFox_String
Author:huoji
Description:Detect files is `SliverFox` malware
Rule name:FreddyBearDropper
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:Lumma_Stealer_Detection
Author:ashizZz
Description:Detects a specific Lumma Stealer malware sample using unique strings and behaviors
Reference:https://seanthegeek.net/posts/compromized-store-spread-lumma-stealer-using-fake-captcha/
Rule name:MAL_packer_lb_was_detected
Author:0x0d4y
Description:Detect the packer used by Lockbit4.0
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Rule name:pe_imphash
Rule name:ProgramLanguage_Rust
Author:albertzsigovits
Description:Application written in Rust programming language
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:ThreadControl__Context
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:UPX
Author:kevoreilly
Description:UPX Unpacker: dump on OEP (original entry point)
Rule name:VECT_Ransomware
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.
Rule name:WIN_Malware_Fantom_ForgeAuto_98e6f354_Extrait
Author:Marjoriefort
Description:Detects Fantom (pe, etat extrait)
Rule name:WIN_Malware_Unknown_ForgeAuto_4fa7e284_Extrait
Author:Marjoriefort
Description:Detects Unknown (pe, etat extrait)
Rule name:WIN_Malware_Unknown_ForgeAuto_6717780a_Extrait
Author:Marjoriefort
Description:Detects Unknown (pe, etat extrait)
Rule name:WIN_Sample_Unique_69354b41
Author:Marjoriefort
Description:Specimen unique (soumission Bazaar) - strings distinctifs propres au sample
Reference:69354b41e10daf03d3f3af881b32d5c0fec56b1cfe96629fd4c5263413a42854.exe

File information


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

Web download

PureRAT

Microsoft Software Installer (MSI) msi 44c55dd508b04f3e9a1efbd64b577f4dc0baa07ca3a090e6e227d3dcb724aa36

(this sample)

  
Delivery method
Distributed via web download

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