MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b136291a17e064dd9d44cc454556980107d96da2a0adb1a31eb2db3531b6832a. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b136291a17e064dd9d44cc454556980107d96da2a0adb1a31eb2db3531b6832a
SHA3-384 hash: 95bfa61c5e87a152161424cc7bd94f39e674e644b4bdf5033642d593fdfabdfe748c40597acbd493b415d068dc6c83f3
SHA1 hash: 83cf0888f144cd5dcc66b823689b093d06785856
MD5 hash: 138ab57f963695072c50dd6cbf5a2050
humanhash: wyoming-ten-autumn-juliet
File name:Rawan inquiry.doc
Download: download sample
Signature MassLogger
Create hunting rule
File size:917'533 bytes
First seen:2020-11-03 06:25:23 UTC
Last seen:2020-11-03 09:13:26 UTC
File type:Word file doc
MIME type:text/rtf
ssdeep 24576:vlBZSNpoYLTraJHLnNFNLRNOSrviv6Tl3cyoxDx3idkgKU3VPltC60OTkdr:G
TLSH DC15BEB875047DE62A7F536FCE96ACDD03A626639ACBA4CD806477C305A3375FE02805
Reporter cocaman
Tags:doc MassLogger


Avatar
cocaman
Malicious email (T1566.001)
From: ""Al Rawan Company" <purchase@smitavalves.com>"
Received: "from smitavalves.com (unknown [37.49.225.235]) "
Date: "03 Nov 2020 04:01:20 +0100"
Subject: "Offer request - Important Tender (Ministry of Energy and Water ) UCF"
Attachment: "Rawan inquiry.doc"

Intelligence

File Origin
# of uploads :
3
# of downloads :
101
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.27301.RtfHeur.BadVer.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.FakeRTF-2.UNOFFICIAL
Create hunting rule

MiscreantPunch.RTF.2017-0199.Obfus.170830.UNOFFICIAL
Create hunting rule

MiscreantPunch.RTF.2017-0199.Obfus.171711.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.RTFFakeVersionWithObjUpdateUKSurfMix.20200514.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a window
DNS request
Creating a file in the %AppData% directory
Creating a process with a hidden window
Sending an HTTP GET request
Launching a file downloaded from the Internet
Creating a process from a recently created file
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/518861
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
May check the online IP address of the machine
Office equation editor drops PE file
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Droppers Exploiting CVE-2017-11882
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
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: 308533 Sample: Rawan inquiry.doc Startdate: 03/11/2020 Architecture: WINDOWS Score: 100 49 Sigma detected: Scheduled temp file as task from temp location 2->49 51 Yara detected MassLogger RAT 2->51 53 Yara detected AntiVM_3 2->53 55 12 other signatures 2->55 8 EQNEDT32.EXE 11 2->8         started        13 WINWORD.EXE 291 25 2->13         started        process3 dnsIp4 41 missvolunteeramericateen.org 92.223.93.172, 49167, 80 GCOREAT Austria 8->41 27 C:\Users\user\AppData\...\peodkldsijaijsk.exe, PE32 8->27 dropped 29 C:\Users\user\...\DqbTIwIWNdd0dsa[1].exe, PE32 8->29 dropped 63 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 8->63 15 peodkldsijaijsk.exe 3 8->15         started        file5 signatures6 process7 file8 31 C:\Users\user\AppData\Roaming\nlXpXJwia.exe, PE32 15->31 dropped 33 C:\Users\user\AppData\Local\...\tmpD7D9.tmp, XML 15->33 dropped 43 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 15->43 45 Machine Learning detection for dropped file 15->45 47 Injects a PE file into a foreign processes 15->47 19 peodkldsijaijsk.exe 12 15->19         started        23 schtasks.exe 15->23         started        signatures9 process10 dnsIp11 35 elb097307-934924932.us-east-1.elb.amazonaws.com 54.227.255.202, 49168, 80 AMAZON-AESUS United States 19->35 37 nagano-19599.herokussl.com 19->37 39 api.ipify.org 19->39 57 Tries to steal Mail credentials (via file access) 19->57 59 Tries to harvest and steal browser information (history, passwords, etc) 19->59 61 Adds a directory exclusion to Windows Defender 19->61 25 powershell.exe 6 19->25         started        signatures12 process13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b136291a17e064dd9d44cc454556980107d96da2a0adb1a31eb2db3531b6832a/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2020-11-03 06:27:05 UTC
File Type:
Document
Extracted files:
2
AV detection:
15 of 29 (51.72%)
Threat level:
  5/5
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
family:masslogger spyware stealer
Link:
https://tria.ge/reports/201103-emskh5qrz2/
Behaviour
Creates scheduled task(s)
Launches Equation Editor
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
Enumerates system info in registry
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Blacklisted process makes network request
Executes dropped EXE
MassLogger
MassLogger Main Payload
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Exploit
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b136291a17e064dd9d44cc454556980107d96da2a0adb1a31eb2db3531b6832a

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

MassLogger

Word file doc b136291a17e064dd9d44cc454556980107d96da2a0adb1a31eb2db3531b6832a

(this sample)

  
Delivery method
Distributed via e-mail attachment

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