MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 591674da94749ed6fd78bf74d89830b36f28885aa4a6cc0eb6e41825ce640cef. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 591674da94749ed6fd78bf74d89830b36f28885aa4a6cc0eb6e41825ce640cef
SHA3-384 hash: 5a7dc66bae9bf58a22abe02b4a2a1ac6efa1013e6bec2ca978c4f18ea4b416ce3dd54221e3f7a26b5bf26fdd1bbc42b0
SHA1 hash: 3ac08fc9037d4697afbfc11fa166f1ce8c6b6f6a
MD5 hash: 8870566bd82130c7eb8d32c03e7d5562
humanhash: floor-mississippi-golf-chicken
File name:8870566bd82130c7eb8d32c03e7d5562.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'222'144 bytes
First seen:2020-07-28 13:16:41 UTC
Last seen:2020-07-28 14:07:09 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 20e6d5abed83baa72fa27d4f775f9f3c (7 x AgentTesla, 5 x MassLogger, 1 x QuasarRAT)
ssdeep 24576:xcojK7LuBl6gNYoVVIaczWOreSlfOBVHkKRzfVO6o2yQz:xNkLAJzV3cSieSlfODRJY4n
Threatray 2'099 similar samples on MalwareBazaar
TLSH 6645E136F3E04937D1671A3C9F5B93A8983DBE002F2969462BE51C4C5F3938335662A7
Reporter abuse_ch
Tags:exe MassLogger


Avatar
abuse_ch
MassLogger SMTP exfil server:
mail.privateemail.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
72
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/33663/
Detection(s):
SecuriteInfo.com.Artemis8870566BD821.16380.UNOFFICIAL
Create hunting rule

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 an HTTP GET request
Using the Windows Management Instrumentation requests
Creating a file in the %temp% subdirectories
Reading Telegram data
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 with Startup directory
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/400356
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
Contains functionality to inject code into remote processes
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
Multi AV Scanner detection for submitted 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 MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 252533 Sample: PTugwJR305.exe Startdate: 28/07/2020 Architecture: WINDOWS Score: 100 52 g.msn.com 2->52 54 asf-ris-prod-neurope.northeurope.cloudapp.azure.com 2->54 74 Multi AV Scanner detection for submitted file 2->74 76 Yara detected MassLogger RAT 2->76 78 Yara detected AntiVM_3 2->78 80 6 other signatures 2->80 10 PTugwJR305.exe 2->10         started        13 wscript.exe 1 2->13         started        15 wuapihost.exe 2->15         started        signatures3 process4 signatures5 90 Contains functionality to inject code into remote processes 10->90 92 Writes to foreign memory regions 10->92 94 Allocates memory in foreign processes 10->94 96 2 other signatures 10->96 17 notepad.exe 5 10->17         started        21 ghsjsdso.exe 13->21         started        process6 file7 44 C:\Users\user\AppData\...\ghsjsdso.exe, PE32 17->44 dropped 46 C:\Users\...\ghsjsdso.exe:Zone.Identifier, ASCII 17->46 dropped 48 C:\Users\user\AppData\Roaming\...\web.vbs, ASCII 17->48 dropped 68 Creates files in alternative data streams (ADS) 17->68 70 Drops VBS files to the startup folder 17->70 23 ghsjsdso.exe 17->23         started        72 Maps a DLL or memory area into another process 21->72 26 ghsjsdso.exe 21->26         started        28 ghsjsdso.exe 3 21->28         started        signatures8 process9 signatures10 82 Multi AV Scanner detection for dropped file 23->82 84 Detected unpacking (changes PE section rights) 23->84 86 Detected unpacking (creates a PE file in dynamic memory) 23->86 88 5 other signatures 23->88 30 ghsjsdso.exe 15 6 23->30         started        34 ghsjsdso.exe 23->34         started        36 ghsjsdso.exe 26->36         started        process11 dnsIp12 62 mail.privateemail.com 198.54.122.60, 49726, 49733, 587 NAMECHEAP-NETUS United States 30->62 64 elb097307-934924932.us-east-1.elb.amazonaws.com 54.235.182.194, 49721, 80 AMAZON-AESUS United States 30->64 66 3 other IPs or domains 30->66 98 Tries to steal Mail credentials (via file access) 30->98 100 Maps a DLL or memory area into another process 36->100 38 ghsjsdso.exe 36->38         started        42 ghsjsdso.exe 36->42         started        signatures13 process14 dnsIp15 56 54.225.191.113, 49731, 80 AMAZON-AESUS United States 38->56 58 nagano-19599.herokussl.com 38->58 60 3 other IPs or domains 38->60 50 C:\Users\user\AppData\Local\Temp\...\Log.txt, ASCII 38->50 dropped file16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/591674da94749ed6fd78bf74d89830b36f28885aa4a6cc0eb6e41825ce640cef/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2020-07-28 13:18:09 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=lelhjwuuospnn7lyx52nrgbqwnxsrcc2ustmydvw4qmclttebtxq._file
Verdict:
malicious
Label(s):
hawkeyekeylogger
Create hunting rule
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MassLogger
+ 2'089 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
ransomware upx spyware stealer family:masslogger
Link:
https://tria.ge/reports/200728-sxcm4v7l9e/
Behaviour
NTFS ADS
Suspicious use of SetWindowsHookEx
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
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
UPX packed file
Executes dropped EXE
MassLogger
MassLogger log file
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/591674da94749ed6fd78bf74d89830b36f28885aa4a6cc0eb6e41825ce640cef

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
Create hunting rule
Author:govcert_ch
Rule name:win_masslogger_w0
Create hunting rule
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 591674da94749ed6fd78bf74d89830b36f28885aa4a6cc0eb6e41825ce640cef

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/33663/
  
URLhaus
https://urlhaus.abuse.ch/url/412465/
  
Delivery method
Distributed via web download

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