MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 800a9477f04ae6598b190d3edb2d1c6c33b962fd1ef6fdba4dbafd13bad161c1. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 800a9477f04ae6598b190d3edb2d1c6c33b962fd1ef6fdba4dbafd13bad161c1
SHA3-384 hash: c4ee7113ecbf592287a317f3de39bd38d27f0b255ee84426c20d3db3878294623d90d182860ad9f69cfb112396917b78
SHA1 hash: e6f97de40b5fbf79b4be5325f22d277cd578ca1b
MD5 hash: 2e42a55bc1d84b11a76e7ef44079d656
humanhash: juliet-coffee-robert-spring
File name:kkYhIVy3fvtZzZ8.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'008'128 bytes
First seen:2020-10-27 12:17:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'743 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:Fn7/LVwGxzCgW1pxBH7DmPn5OCpaKZEWAv2fICeYvzaYQEgrSBhF9gGDYx4AioSa:5bLV9xG5yBdYIAvAI8vtZdB94F
Threatray 414 similar samples on MalwareBazaar
TLSH D325E09C3274719EC86BC5F79AE51D24AA116C6B531F8203B53330A99A3DA93CF143E7
Reporter abuse_ch
Tags:exe MassLogger Yahoo


Avatar
abuse_ch
Malspam distributing MassLogger:

HELO: sonic311-20.consmr.mail.sg3.yahoo.com
Sending IP: 106.10.244.37
From: Susan <efo96@yahoo.com.ph>
Reply-To: Susan <efo96@yahoo.com.ph>
Subject: FW: Payment Transfer
Attachment: PAYMENT COPY 001.rar (contains "kkYhIVy3fvtZzZ8.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
85
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Artemis2E42A55BC1D8.6865.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
DNS request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
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/513432
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
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 harvest and steal browser information (history, passwords, etc)
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: 305828 Sample: kkYhIVy3fvtZzZ8.exe Startdate: 27/10/2020 Architecture: WINDOWS Score: 100 34 Malicious sample detected (through community Yara rule) 2->34 36 Multi AV Scanner detection for dropped file 2->36 38 Sigma detected: Scheduled temp file as task from temp location 2->38 40 12 other signatures 2->40 8 kkYhIVy3fvtZzZ8.exe 6 2->8         started        process3 file4 24 C:\Users\user\AppData\Roaming\oXptQquV.exe, PE32 8->24 dropped 26 C:\Users\user\AppData\Local\...\tmpECFE.tmp, XML 8->26 dropped 42 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->42 44 Injects a PE file into a foreign processes 8->44 12 kkYhIVy3fvtZzZ8.exe 15 2 8->12         started        16 schtasks.exe 1 8->16         started        signatures5 process6 dnsIp7 28 smtp.yandex.ru 77.88.21.158, 49737, 587 YANDEXRU Russian Federation 12->28 30 elb097307-934924932.us-east-1.elb.amazonaws.com 54.235.169.38, 49727, 80 AMAZON-AESUS United States 12->30 32 4 other IPs or domains 12->32 46 Tries to steal Mail credentials (via file access) 12->46 48 Tries to harvest and steal browser information (history, passwords, etc) 12->48 50 Adds a directory exclusion to Windows Defender 12->50 18 powershell.exe 25 12->18         started        20 conhost.exe 16->20         started        signatures8 process9 process10 22 conhost.exe 18->22         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/800a9477f04ae6598b190d3edb2d1c6c33b962fd1ef6fdba4dbafd13bad161c1/
Threat name:
ByteCode-MSIL.Trojan.MassLogger
Create hunting rule
Status:
Malicious
First seen:
2020-10-27 04:30:11 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qafji57qjltftcyzbu7nwli4nqz3syx5d33p3osnxl6rhowrmhaq._file
Verdict:
malicious
Label(s):
masslogger
Create hunting rule
Similar samples:
385c7018cf8debb5955d9009f6c8096cecf124c975306b95c9b24bd84046e97b
MassLogger
46b39992ec65f8aead6f89edbc0c1f5a984677f20780a35b6559150e942efe97
MassLogger
46b788ef7309467fc6245bbfb1d1e09208758b80e32223ecdc618541972b65a9
MassLogger
755bcfb03ddf8019aca959a1a5f46f1e2a8b5e10cce049ce8b80e8f4daaaa143
MassLogger
88b664781d7b10fc5130cf6453fbde5b26b129f0e2f5e002d62be833b0fcd020
MassLogger
bca4b6e9f14cb4d84674d2f4db286e0ea692f68e8b1d906d04ced807556c6174
MassLogger
c8fb4f739e355cab35090244a1be19d2c97049c64bfb76d61538a6b7306f3528
MassLogger
c96a3e23f48b7096d9a6012510064cce5ac745c602a2d3863f9ca8f78771f8cd
MassLogger
ca0e3013bce504e1592e553248ce902c00b9ab3cd4cbf5b2bfa9c9577ec10f33
MassLogger
f690a5d289ca78684075e5755fd4e5f0f1a2c1dd4b2e41c80f180b9f95429d8e
MassLogger
+ 404 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
family:masslogger spyware stealer
Link:
https://tria.ge/reports/201027-6smckfv6fe/
Behaviour
Creates scheduled task(s)
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
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
Reads user/profile data of web browsers
MassLogger
MassLogger Main Payload
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/800a9477f04ae6598b190d3edb2d1c6c33b962fd1ef6fdba4dbafd13bad161c1

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
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

rar 0d095a30117dd0387c1d3a9ccbf0824edac21f89581ae6a339bb98aa04e98593

MassLogger

Executable exe 800a9477f04ae6598b190d3edb2d1c6c33b962fd1ef6fdba4dbafd13bad161c1

(this sample)

  
Dropped by
MD5 497d19da8356b5b1034f46a3e0945404
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 0d095a30117dd0387c1d3a9ccbf0824edac21f89581ae6a339bb98aa04e98593

Comments