MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c0cb41070b74fa0e592f10c6d5312e55009f1cc884bd1c242591bc75c5f9e5eb. 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: 6


Intelligence 6 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c0cb41070b74fa0e592f10c6d5312e55009f1cc884bd1c242591bc75c5f9e5eb
SHA3-384 hash: 209a8ec453e4aedf14e3e06b976943f06a3699291ab4d789960c31d104afae8ec1b588d1cf2605df64ed8960c17e13d9
SHA1 hash: 7d983b597b535d60123a773a1c40fcc14e0500b7
MD5 hash: a7624902cc07011b5dadbcdd8267c9dc
humanhash: single-enemy-florida-freddie
File name:Halkbank,pdf.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:914'944 bytes
First seen:2020-08-31 09:26:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:89F6XISI3SLaIUZv8BrzrS4l832d4TwtKrJNHsRX36vGM3Ba3hkqAdfTIPGJE8:89LtwBzAmdkRMRXgRaLAdE+JE
Threatray 58 similar samples on MalwareBazaar
TLSH F0152371406CCB32E4FA9FFC346DF270673126AC9B5AD7984C02A4C5219F7918B69B93
Reporter abuse_ch
Tags:exe geo Halkbank MassLogger TUR


Avatar
abuse_ch
Malspam distributing MassLogger:

HELO: ygw1.netinternetgw.com
Sending IP: 89.43.67.197
From: halkbank<serkanakbaba@imkon.com.tr>
Subject: T.HALK BANKASI A.S.01.09.2020 Hesap Ekstresi
Attachment: Halkbank,pdf.r00 (contains "Halkbank,pdf.exe")

MassLogger SMTP exfil server:
smtp.yandex.com.tr:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
99
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/53363/
Detection(s):
SecuriteInfo.com.W32.Trojan-7.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file
DNS request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% directory
Launching a process
Creating a process from a recently created file
Unauthorized injection to a recently created 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/455144
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
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)
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 Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 279955 Sample: Halkbank,pdf.exe Startdate: 31/08/2020 Architecture: WINDOWS Score: 100 62 Malicious sample detected (through community Yara rule) 2->62 64 Antivirus / Scanner detection for submitted sample 2->64 66 Multi AV Scanner detection for submitted file 2->66 68 7 other signatures 2->68 9 Halkbank,pdf.exe 3 2->9         started        13 vlc.exe 2 2->13         started        process3 file4 48 C:\Users\user\...\Halkbank,pdf.exe.log, ASCII 9->48 dropped 70 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 9->70 72 Injects a PE file into a foreign processes 9->72 15 Halkbank,pdf.exe 15 7 9->15         started        74 Antivirus detection for dropped file 13->74 76 Multi AV Scanner detection for dropped file 13->76 78 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 13->78 19 vlc.exe 13->19         started        21 vlc.exe 13->21         started        23 vlc.exe 13->23         started        25 vlc.exe 13->25         started        signatures5 process6 dnsIp7 56 elb097307-934924932.us-east-1.elb.amazonaws.com 184.73.247.141, 49716, 80 AMAZON-AESUS United States 15->56 58 192.168.2.1 unknown unknown 15->58 60 2 other IPs or domains 15->60 46 C:\Users\user\AppData\Roaming\...\vlc.exe, PE32 15->46 dropped 27 cmd.exe 1 15->27         started        29 cmd.exe 1 15->29         started        file8 process9 process10 31 vlc.exe 3 27->31         started        34 conhost.exe 27->34         started        36 timeout.exe 1 27->36         started        38 conhost.exe 29->38         started        40 schtasks.exe 1 29->40         started        signatures11 82 Injects a PE file into a foreign processes 31->82 42 vlc.exe 31->42         started        process12 dnsIp13 50 54.221.234.156, 49728, 80 AMAZON-AESUS United States 42->50 52 nagano-19599.herokussl.com 42->52 54 2 other IPs or domains 42->54 80 Tries to steal Mail credentials (via file access) 42->80 signatures14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c0cb41070b74fa0e592f10c6d5312e55009f1cc884bd1c242591bc75c5f9e5eb/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-08-31 00:27:53 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ydfucbylot5a4wjpcddnkmjokuaj6hgiqs6ryjbfsg6hlrpz4xvq._file
Verdict:
unknown
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f544548656da95993af2c115a9af5eb499741c1c9914ef556bbd599391ae769e
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MassLogger
+ 48 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
spyware
Link:
https://tria.ge/reports/200831-1y3tnf7bpx/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Delays execution with timeout.exe
Modifies data under HKEY_USERS
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Suspicious use of SetThreadContext
Suspicious use of SetThreadContext
Looks up external IP address via web service
Looks up external IP address via web service
Loads dropped DLL
Reads user/profile data of web browsers
Reads user/profile data of web browsers
Executes dropped EXE
Executes dropped EXE
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/c0cb41070b74fa0e592f10c6d5312e55009f1cc884bd1c242591bc75c5f9e5eb

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:Quasar_RAT_1
Create hunting rule
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
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.

Malspam

MassLogger

r00 b9592b631258c5fde86c22eb289097d7dc26bd33156f69cb16077d34d532edf4

MassLogger

Executable exe c0cb41070b74fa0e592f10c6d5312e55009f1cc884bd1c242591bc75c5f9e5eb

(this sample)

  
Dropped by
MD5 757bf37ff10b19b762df32ece0bcdc62
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/53363/
  
Dropped by
SHA256 b9592b631258c5fde86c22eb289097d7dc26bd33156f69cb16077d34d532edf4

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