MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 620fe51977578ab356bf90aec9982e03fd7928d000e75226c757b4f70163f4ba. 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: 620fe51977578ab356bf90aec9982e03fd7928d000e75226c757b4f70163f4ba
SHA3-384 hash: 0d715f0e5c518653f8b8ca42d211f26505f6d46d8bc488d477210ae393bd5b877d8dabfde9ed08ed4d0c558b0ddcba34
SHA1 hash: 90a8121c383f0df85389e1eae31d5502f022dab3
MD5 hash: ecc3aa1cb18ab87ce6fa97ba8eb81761
humanhash: mexico-papa-violet-zulu
File name:IcaiFtIyk04lcaN.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'160'192 bytes
First seen:2020-08-06 13:41:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:klV6ukBSLkz/P+T0DpJd3nPFesqW0y5bjYFnTOM1H:KV6ufLWn+4dJd3nNecl/wTO
Threatray 647 similar samples on MalwareBazaar
TLSH 2A35CF3817D2A5BCF46A473B58B60602EB29BC0BAC22875F0B713AF192767C45DC5F19
Reporter James_inthe_box
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
72
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/41231/
Detection(s):
SecuriteInfo.com.Trojan.Inject3.46680.11607.15855.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/414022
Signature
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
May check the online IP address of the machine
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to steal Mail credentials (via file access)
Uses schtasks.exe or at.exe to add and modify task schedules
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: 259419 Sample: IcaiFtIyk04lcaN.exe Startdate: 07/08/2020 Architecture: WINDOWS Score: 100 37 Found malware configuration 2->37 39 Sigma detected: Scheduled temp file as task from temp location 2->39 41 Yara detected MassLogger RAT 2->41 43 7 other signatures 2->43 7 IcaiFtIyk04lcaN.exe 7 2->7         started        process3 file4 23 C:\Users\user\AppData\...\&startupname&.exe, PE32 7->23 dropped 25 C:\Users\user\AppData\Local\...\tmp4595.tmp, XML 7->25 dropped 27 C:\...\&startupname&.exe:Zone.Identifier, ASCII 7->27 dropped 29 C:\Users\user\...\IcaiFtIyk04lcaN.exe.log, ASCII 7->29 dropped 45 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 7->45 47 Injects a PE file into a foreign processes 7->47 11 IcaiFtIyk04lcaN.exe 15 6 7->11         started        15 schtasks.exe 1 7->15         started        17 IcaiFtIyk04lcaN.exe 7->17         started        19 IcaiFtIyk04lcaN.exe 7->19         started        signatures5 process6 dnsIp7 31 mail.privateemail.com 198.54.122.60, 49751, 587 NAMECHEAP-NETUS United States 11->31 33 elb097307-934924932.us-east-1.elb.amazonaws.com 107.22.251.25, 49746, 80 AMAZON-AESUS United States 11->33 35 2 other IPs or domains 11->35 49 Tries to steal Mail credentials (via file access) 11->49 21 conhost.exe 15->21         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/620fe51977578ab356bf90aec9982e03fd7928d000e75226c757b4f70163f4ba/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-06 09:26:35 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mih6kglxk6flgvv7scxmtgboap6xskgqadtvejwhk62poald6s5a._file
Verdict:
unknown
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3ba509359db69542f368af1d41dd8fa1c116e3e31ded1879872bb34a41f9cbbb
MassLogger
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bbf5829871a9c0e6348a4cbab3327df93fd5196b611afafef770cf85e85bfd6c
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cc4c45cb30d6771f9947cb7fdd713fd9c6f0e726a3ed71c73a3cfb4c4262c07a
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ce41031b56cdb4cf97a4c9e24b14ffd16672719457b5a394daa7a4ccb91591bf
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d4557d36508f2a62bbb7e58cc6b8a5d1f9588810485b04adf4cc100ee925687a
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fc9d50ccd0d0a267f1fa1003607ea81931a9c1f857798c3b10af9b5408f01437
MassLogger
+ 637 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
ransomware stealer spyware family:masslogger
Link:
https://tria.ge/reports/200806-wvk6g2z396/
Behaviour
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of SetThreadContext
Looks up external IP address via web service
Reads user/profile data of web browsers
MassLogger log file
MassLogger
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/620fe51977578ab356bf90aec9982e03fd7928d000e75226c757b4f70163f4ba

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.

  
Delivery method
Other
  
URLhaus
https://urlhaus.abuse.ch/url/426041/
Cape
Cape
https://www.capesandbox.com/analysis/41231/

Comments