MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d406b975d0f2b8252426508b73d1df1241e4272043ed22c9e64ad2d6ee4f45a9. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d406b975d0f2b8252426508b73d1df1241e4272043ed22c9e64ad2d6ee4f45a9
SHA3-384 hash: 941a5fc31739debbd2eed2dd519eec5f3cf8b886ba64c8368eb91633453c9e5708c441cc7101880cd5ddfc59e950baf7
SHA1 hash: 75f61f87cb74992b86b6c1ddab2c4c2c53196b54
MD5 hash: 63e67b366f23b4d30c4fdb120a476721
humanhash: october-queen-uniform-uncle
File name:70% Balance Payment.doc
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'535'810 bytes
First seen:2020-12-17 06:40:54 UTC
Last seen:Never
File type:Word file doc
MIME type:text/rtf
ssdeep 24576:Kpv+Dh0cb2QfzlqST9egyVvpmlYhiussL0kZ/bZvA+nUoogKO2OAtXkA+RH92J5m:8
TLSH DD65AFF876047DE6666F576BDA96ACDD03A61B338ACBA4CC806477C30563375EE02C05
Reporter abuse_ch
Tags:doc geo KOR MassLogger


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: bckino.com
Sending IP: 64.227.34.39
From: Admin <info@bckino.com>
Subject: 지금 계정 확인
Attachment: 70% Balance Payment.doc

Office OLE Information

This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE dump

Intelligence

File Origin
# of uploads :
1
# of downloads :
118
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
c42ad004-a456-47af-bab7-9e936833d551
Verdict:
Malicious activity
Analysis date:
2020-12-17 07:38:34 UTC
Tags:
exploit CVE-2017-11882
Link:
https://app.any.run/tasks/73da5415-f3d9-40c0-ad19-50a5fbbca8dc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
File type:
application/msword
Has a screenshot:
False
Contains macros:
False
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.DOCXSTRGOOD.RTFSTR._EQUATION.200422.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
Sending an HTTP GET request
Sending a custom TCP request by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Fake RTF File
Link:
https://app.docguard.net/d406b975d0f2b8252426508b73d1df1241e4272043ed22c9e64ad2d6ee4f45a9/results/dashboard
Result
Gathering data
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/564963
Signature
Creates HTML files with .exe extension (expired dropper behavior)
Multi AV Scanner detection for submitted file
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d406b975d0f2b8252426508b73d1df1241e4272043ed22c9e64ad2d6ee4f45a9/
Threat name:
Document-RTF.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2020-12-17 06:41:05 UTC
AV detection:
17 of 48 (35.42%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2qdls5oq6k4ckjbgkcfxhuo7cja6ijzaipwsfspgjljnn3spiwuq._file
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
family:masslogger spyware stealer
Link:
https://tria.ge/reports/201217-4yffk8vs4n/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
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
Blocklisted 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:
Malicious File
Score:
0.96
Link:
https://yomi.yoroi.company/submissions/d406b975d0f2b8252426508b73d1df1241e4272043ed22c9e64ad2d6ee4f45a9

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_RTF_EXPLOIT_CVE_2017_11882_4
Create hunting rule
Author:ditekSHen
Description:detects RTF variant documents potentially exploiting CVE-2018-0802 or CVE-2017-11882
Rule name:INDICATOR_RTF_MalVer_Objects
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embeding one of the object mostly observed in exploit documents.

File information

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

Malspam

MassLogger

Word file doc d406b975d0f2b8252426508b73d1df1241e4272043ed22c9e64ad2d6ee4f45a9

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments