MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5b17d730ed0b4b94434285805d0d22dd2a303f7d88da2e74e9efed683b3c86e2. 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



MassLogger


Vendor detections: 8


Intelligence 8 IOCs YARA 2 File information Comments

SHA256 hash: 5b17d730ed0b4b94434285805d0d22dd2a303f7d88da2e74e9efed683b3c86e2
SHA3-384 hash: 58e193ecdc771199549611ba41b55808ce13c017a43202b757e63ff899ca422ee876e6833c56ee4fa53020dc723f779f
SHA1 hash: 9482c167fb9637330ba177c6a409afd9f5a88006
MD5 hash: 807db5e922fc27119ae8044e359a4f2f
humanhash: montana-papa-friend-timing
File name:807db5e922fc27119ae8044e359a4f2f.exe
Download: download sample
Signature MassLogger
File size:1'562'112 bytes
First seen:2020-08-31 05:25:00 UTC
Last seen:2020-08-31 05:34:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 73ae1eef07955a270fc7a7f873444c85 (16 x AgentTesla, 8 x MassLogger, 5 x Loki)
ssdeep 24576:aQvrCXEucruic247nrns/j8hPNTi94lrXOcyRx6512fhhjOqT4:aIsTsLilmG1xIjT4
Threatray 398 similar samples on MalwareBazaar
TLSH 5675CFE2F2928437D1732A3C9C5B57B4983ABE006D2878467BF9DD4C4F3928139752A7
Reporter abuse_ch
Tags:exe MassLogger

Intelligence


File Origin
# of uploads :
2
# of downloads :
88
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Sending a UDP request
DNS request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Creating a file in the %temp% subdirectories
Reading critical registry keys
Moving a file to the %temp% subdirectory
Sending a custom TCP request
Deleting a recently created file
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Setting a global event handler for the keyboard
Unauthorized injection to a system process
Enabling autorun by creating a file
Result
Threat name:
MassLogger RAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Contains functionality to detect sleep reduction / modifications
Creates files in alternative data streams (ADS)
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Drops VBS files to the startup folder
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Queues an APC in another process (thread injection)
Sigma detected: Drops script at startup location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 279771 Sample: 42nanWR3wp.exe Startdate: 31/08/2020 Architecture: WINDOWS Score: 100 68 nagano-19599.herokussl.com 2->68 70 mail.privateemail.com 2->70 72 2 other IPs or domains 2->72 92 Yara detected MassLogger RAT 2->92 94 Yara detected AntiVM_3 2->94 96 Sigma detected: Drops script at startup location 2->96 98 6 other signatures 2->98 12 42nanWR3wp.exe 2->12         started        15 wscript.exe 1 2->15         started        signatures3 process4 signatures5 110 Writes to foreign memory regions 12->110 112 Allocates memory in foreign processes 12->112 114 Queues an APC in another process (thread injection) 12->114 116 Contains functionality to detect sleep reduction / modifications 12->116 17 notepad.exe 5 12->17         started        21 ddfnmeur.exe 15->21         started        process6 file7 54 C:\Users\user\AppData\...\ddfnmeur.exe, PE32 17->54 dropped 56 C:\Users\...\ddfnmeur.exe:Zone.Identifier, ASCII 17->56 dropped 58 C:\Users\user\AppData\Roaming\...\web.vbs, ASCII 17->58 dropped 86 Creates files in alternative data streams (ADS) 17->86 88 Drops VBS files to the startup folder 17->88 23 ddfnmeur.exe 17->23         started        90 Maps a DLL or memory area into another process 21->90 26 ddfnmeur.exe 21->26         started        28 ddfnmeur.exe 3 21->28         started        signatures8 process9 signatures10 100 Multi AV Scanner detection for dropped file 23->100 102 Detected unpacking (changes PE section rights) 23->102 104 Detected unpacking (creates a PE file in dynamic memory) 23->104 106 5 other signatures 23->106 30 ddfnmeur.exe 15 6 23->30         started        34 ddfnmeur.exe 23->34         started        36 ddfnmeur.exe 26->36         started        process11 dnsIp12 80 mail.privateemail.com 198.54.122.60, 49733, 49743, 49748 NAMECHEAP-NETUS United States 30->80 82 elb097307-934924932.us-east-1.elb.amazonaws.com 54.197.225.198, 49726, 49739, 80 AMAZON-AESUS United States 30->82 84 3 other IPs or domains 30->84 118 Tries to steal Mail credentials (via file access) 30->118 120 Maps a DLL or memory area into another process 36->120 38 ddfnmeur.exe 36->38         started        40 ddfnmeur.exe 36->40         started        signatures13 process14 dnsIp15 43 ddfnmeur.exe 38->43         started        74 nagano-19599.herokussl.com 40->74 76 mail.privateemail.com 40->76 78 2 other IPs or domains 40->78 46 WerFault.exe 40->46         started        process16 signatures17 108 Maps a DLL or memory area into another process 43->108 48 ddfnmeur.exe 43->48         started        52 ddfnmeur.exe 43->52         started        process18 dnsIp19 62 54.225.215.180, 49745, 80 AMAZON-AESUS United States 48->62 64 nagano-19599.herokussl.com 48->64 66 2 other IPs or domains 48->66 60 C:\Users\user\AppData\Local\Temp\...\Log.txt, ASCII 48->60 dropped file20
Threat name:
Win32.Trojan.DelfFareIt
Status:
Malicious
First seen:
2020-08-31 05:26:11 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Result
Malware family:
masslogger
Score:
  10/10
Tags:
ransomware upx spyware stealer family:masslogger
Behaviour
Suspicious use of WriteProcessMemory
NTFS ADS
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of SetThreadContext
Looks up external IP address via web service
Drops startup file
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
UPX packed file
MassLogger
MassLogger log file
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:masslogger_gcch
Author:govcert_ch
Rule name:win_masslogger_w0
Author:govcert_ch

File information


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

Web download

MassLogger

Executable exe 5b17d730ed0b4b94434285805d0d22dd2a303f7d88da2e74e9efed683b3c86e2

(this sample)

  
Delivery method
Distributed via web download

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