MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 963f20948111e17170653bec6a0e95c63e46b180581070776672715f35faadff. 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: 7


Intelligence 7 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 963f20948111e17170653bec6a0e95c63e46b180581070776672715f35faadff
SHA3-384 hash: f9a1ccadfe06b6031f11ec277f1ebbb6a54d8f699453d7a61499d1cc705563c11b6c83e7deed72749377404c72695f98
SHA1 hash: 23e18e0bb34dcd5d3fdd32be96d33cfaf31b6584
MD5 hash: 9860cb754baae84f1cd51ee0a302a867
humanhash: butter-william-apart-oregon
File name:9860cb754baae84f1cd51ee0a302a867.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'352'192 bytes
First seen:2020-09-13 05:42:35 UTC
Last seen:2020-09-13 06:38:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash e47655173efbb168e78dde14b964606c (1 x MassLogger)
ssdeep 24576:pq09kahRiZcXnAe6xXdK0ej3aC+soOW35TjgL+R:p90enKBd3735Pg6R
TLSH EE55D122B5918837C19F153D9C1B93B8982ABA512D28BB763BF5DD4C4F382413D2A1DF
Reporter abuse_ch
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
2
# of downloads :
118
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/58794/
Detection(s):
SecuriteInfo.com.Trojan.Agent.EWGS.20471.31350.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Sending a UDP request
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
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
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/464817
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
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 Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 284818 Sample: 9ykoZmxUMR.exe Startdate: 13/09/2020 Architecture: WINDOWS Score: 100 80 Multi AV Scanner detection for submitted file 2->80 82 Yara detected MassLogger RAT 2->82 84 Yara detected AntiVM_3 2->84 86 7 other signatures 2->86 10 9ykoZmxUMR.exe 2->10         started        13 wscript.exe 1 2->13         started        process3 signatures4 98 Writes to foreign memory regions 10->98 100 Allocates memory in foreign processes 10->100 102 Queues an APC in another process (thread injection) 10->102 104 Contains functionality to detect sleep reduction / modifications 10->104 15 notepad.exe 5 10->15         started        19 sfjskfhskfsf.exe 13->19         started        process5 file6 48 C:\Users\user\AppData\...\sfjskfhskfsf.exe, PE32 15->48 dropped 50 C:\Users\...\sfjskfhskfsf.exe:Zone.Identifier, ASCII 15->50 dropped 52 C:\Users\user\AppData\Roaming\...\win.vbs, ASCII 15->52 dropped 72 Creates files in alternative data streams (ADS) 15->72 74 Drops VBS files to the startup folder 15->74 21 sfjskfhskfsf.exe 15->21         started        76 Maps a DLL or memory area into another process 19->76 24 sfjskfhskfsf.exe 19->24         started        27 sfjskfhskfsf.exe 19->27         started        signatures7 process8 dnsIp9 90 Multi AV Scanner detection for dropped file 21->90 92 Detected unpacking (changes PE section rights) 21->92 94 Detected unpacking (creates a PE file in dynamic memory) 21->94 96 5 other signatures 21->96 29 sfjskfhskfsf.exe 21->29         started        31 sfjskfhskfsf.exe 15 6 21->31         started        54 54.235.169.38, 49743, 49751, 80 AMAZON-AESUS United States 24->54 56 nagano-19599.herokussl.com 24->56 58 3 other IPs or domains 24->58 signatures10 process11 dnsIp12 35 sfjskfhskfsf.exe 29->35         started        66 mail.privateemail.com 198.54.122.60, 49745, 49746, 49752 NAMECHEAP-NETUS United States 31->66 68 elb097307-934924932.us-east-1.elb.amazonaws.com 54.235.83.248, 49733, 80 AMAZON-AESUS United States 31->68 70 3 other IPs or domains 31->70 78 Tries to steal Mail credentials (via file access) 31->78 38 WerFault.exe 31->38         started        signatures13 process14 signatures15 88 Maps a DLL or memory area into another process 35->88 40 sfjskfhskfsf.exe 35->40         started        44 sfjskfhskfsf.exe 35->44         started        process16 dnsIp17 60 nagano-19599.herokussl.com 40->60 62 mail.privateemail.com 40->62 64 2 other IPs or domains 40->64 46 C:\Users\user\AppData\Local\Temp\...\Log.txt, ASCII 40->46 dropped file18
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/963f20948111e17170653bec6a0e95c63e46b180581070776672715f35faadff/
Threat name:
Win32.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-09-13 05:44:06 UTC
File Type:
PE (Exe)
Extracted files:
25
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=sy7sbfebchqxc4dfhpwguduvyy7enmmalaiha53gojyv6np2vx7q._file
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
ransomware upx spyware stealer family:masslogger
Link:
https://tria.ge/reports/200913-rg6c42e25n/
Behaviour
NTFS ADS
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
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.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/963f20948111e17170653bec6a0e95c63e46b180581070776672715f35faadff

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 963f20948111e17170653bec6a0e95c63e46b180581070776672715f35faadff

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/412465/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/58794/

Comments