MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 971759ead91648e60c57d5d91340a27885c4faf2777df8e9fca23b52aee97203. 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
RemcosRAT
Vendor detections: 10
| SHA256 hash: | 971759ead91648e60c57d5d91340a27885c4faf2777df8e9fca23b52aee97203 |
|---|---|
| SHA3-384 hash: | c72e457a89006fcb7ea9308dd9b236791143115a280b0ee259c347bd91bd8fe4ae566616b1ec321cc8a7ad3231de90b6 |
| SHA1 hash: | 22170c6f14a69708316f45b13de448401fff916a |
| MD5 hash: | 04a31614656cec6a6a16688f9791ed65 |
| humanhash: | gee-thirteen-gee-alabama |
| File name: | RICHIESTA QUOTAZIONE.doc |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 955'327 bytes |
| First seen: | 2020-12-16 07:09:28 UTC |
| Last seen: | Never |
| File type: |  doc |
| MIME type: | text/rtf |
| ssdeep | 24576:gOoLit4KQTci5gcVGGGpD9YoxjOdN2KkwHBg2fyWHUCjNIs:g5 |
| TLSH | 8515AFF875047DE62A6F576BDA96ACDD03B61B239ACBA4CC806477C305A3375FE02805 |
| Reporter |  abuse_ch |
| Tags: | doc RemcosRAT |
abuse_ch
Malspam distributing unidentified malware:HELO: oxcta.vpsecomputer.com
Sending IP: 195.53.66.81
From: Alessandra Gatta <alessandra.gatte@polypiu.it>
Subject: R: RICHIESTA QUOTAZIONE
Attachment: RICHIESTA QUOTAZIONE.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 :
179
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RICHIESTA QUOTAZIONE.doc
Verdict:
Malicious activity
Analysis date:
2020-12-16 07:26:23 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/msword
Has a screenshot:
False
Contains macros:
False
Detection(s):
Sanesecurity.Malware.27301.RtfHeur.BadVer.UNOFFICIAL
SecuriteInfo.com.FakeRTF-2.UNOFFICIAL
MiscreantPunch.RTF.2017-0199.Obfus.170830.UNOFFICIAL
MiscreantPunch.RTF.2017-0199.Obfus.171711.UNOFFICIAL
TwinWave.EvilDoc.DOCXSTRGOOD.RTFSTR._EQUATION.200422.UNOFFICIAL
TwinWave.EvilDoc.RTFFakeVersionWithObjUpdateUKSurfMix.20200514.UNOFFICIAL
SecuriteInfo.com.FakeRTF-2.UNOFFICIAL
MiscreantPunch.RTF.2017-0199.Obfus.170830.UNOFFICIAL
MiscreantPunch.RTF.2017-0199.Obfus.171711.UNOFFICIAL
TwinWave.EvilDoc.DOCXSTRGOOD.RTFSTR._EQUATION.200422.UNOFFICIAL
TwinWave.EvilDoc.RTFFakeVersionWithObjUpdateUKSurfMix.20200514.UNOFFICIAL
Result
Verdict:
Malware
Maliciousness:
Behaviour
Launching a process
Creating a window
DNS request
Creating a file in the %AppData% directory
Creating a file in the Windows subdirectories
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Launching cmd.exe command interpreter
Running batch commands
Creating a process with a hidden window
Self-deleting of the BAT file
Launching a file downloaded from the Internet
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Blocking the User Account Control
Sending an HTTP GET request to an infection source by exploiting the app vulnerability
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
Fake RTF File
Result
Gathering data
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl
Score:
68 / 100
Signature
Antivirus detection for URL or domain
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
Behaviour
Behavior Graph:
Threat name:
Document-Word.Exploit.CVE-2017-11882
Status:
Malicious
First seen:
2020-12-16 03:50:33 UTC
AV detection:
16 of 28 (57.14%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos evasion persistence rat trojan
Behaviour
Launches Equation Editor
Modifies Internet Explorer settings
Modifies registry key
Runs ping.exe
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
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Blocklisted process makes network request
Executes dropped EXE
Remcos
UAC bypass
Malware Config
C2 Extraction:
arttronova1.duckdns.org:6065
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.96
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 |
|---|---|
| Author: | ditekSHen |
| Description: | detects RTF variant documents potentially exploiting CVE-2018-0802 or CVE-2017-11882 |
| Rule name: | INDICATOR_RTF_MalVer_Objects |
|---|---|
| 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
Delivery method
Distributed via e-mail attachment
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.