MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 364899fa099e7386d61a4d323dde9727b74ba7b737decbd93e3756a36b73d0ae. 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: 13

Intelligence 13 IOCs YARA 1 File information Comments 1

SHA256 hash:	364899fa099e7386d61a4d323dde9727b74ba7b737decbd93e3756a36b73d0ae
SHA3-384 hash:	df51e1f0ab7c64a8088f5401b08de067c54d73df6a0d183d454fabd6fdc0c00dcb9192d0a0406f929793b9aea97344d5
SHA1 hash:	816c32be45fb350f87d5f928dbe84c4f074e7b04
MD5 hash:	665c9e9783911d6a26d96c390eda2180
humanhash:	magazine-timing-blossom-nevada
File name:	665c9e9783911d6a26d96c390eda2180
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	91'641 bytes
First seen:	2024-07-24 04:19:39 UTC
Last seen:	2024-11-19 11:52:13 UTC
File type:	rtf
MIME type:	text/rtf
ssdeep	384:j4G4LIXSnKUJGa8fH7dUDuRam6Jl16bsPXYWYJgz7RD7iE/SXXrf3uyWUEC/DIeO:P4MVU4acdPRamkhPIdgzVv/mL+EmeO
TLSH	T16993028DC78F41A0CF54A73713264A4A42FCB33EB61451B1B46C573137ED92E19A6ABC
Reporter	zbetcheckin
Tags:	CVE-2017-11882 RemcosRAT rtf windowsssforjunee-duckdns-org

Intelligence

File Origin

# of uploads :

# of downloads :

101

Origin country :

Vendor Threat Intelligence

Detection(s):

Sanesecurity.Shelter.Malware.BadRtf.ObjUpd.UNOFFICIAL

TwinWave.EvilRTF.ObfusRunAway.20240409.UNOFFICIAL

Verdict:

Malicious

Score:

94.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=66a080f36f74caeb2f89aa3b

Tags:

Execution Exploit Generic Infostealer Network Office Stealth

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for synchronization primitives

Launching a process

Using the Windows Management Instrumentation requests

Creating a window

Sending an HTTP GET request

Creating a file in the %AppData% directory

Сreating synchronization primitives

DNS request

Connection attempt

Sending a custom TCP request

Creating a process with a hidden window

Launching a service

Searching for the window

Connection attempt by exploiting the app vulnerability

Creating a process from a recently created file

Result

Verdict:

Malicious

File Type:

RTF File

Link:

https://app.docguard.net/364899fa099e7386d61a4d323dde9727b74ba7b737decbd93e3756a36b73d0ae/results/dashboard

Behaviour

BlacklistAPI detected

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Link:

https://www.filescan.io/uploads/66a080f34c5c17942a7c7006/reports/ab492abc-68b1-4671-b218-37d6ed5d457b/overview

Verdict:

Malicious

Labled as:

CVE-2017-11882

Link:

https://www.hybrid-analysis.com/sample/364899fa099e7386d61a4d323dde9727b74ba7b737decbd93e3756a36b73d0ae

Result

Verdict:

MALICIOUS

Result

Threat name:

Remcos

Detection:

malicious

Classification:

spre.troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1479800

Signature

Antivirus / Scanner detection for submitted sample

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Contains functionality to register a low level keyboard hook

Contains functionality to steal Chrome passwords or cookies

Contains functionality to steal Firefox passwords or cookies

Delayed program exit found

Document exploit detected (process start blacklist hit)

Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)

Found malware configuration

Injects a PE file into a foreign processes

Installs new ROOT certificates

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for submitted file

Obfuscated command line found

Office equation editor establishes network connection

Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)

Shellcode detected

Sigma detected: Base64 Encoded PowerShell Command Detected

Sigma detected: EQNEDT32.EXE connecting to internet

Sigma detected: Equation Editor Network Connection

Sigma detected: File Dropped By EQNEDT32EXE

Sigma detected: HackTool - CrackMapExec PowerShell Obfuscation

Sigma detected: Potential PowerShell Command Line Obfuscation

Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet

Sigma detected: Script Initiated Connection to Non-Local Network

Sigma detected: Suspicious Microsoft Office Child Process

Sigma detected: WScript or CScript Dropper

Suspicious execution chain found

Suspicious powershell command line found

System process connects to network (likely due to code injection or exploit)

Uses dynamic DNS services

Very long command line found

Windows Scripting host queries suspicious COM object (likely to drop second stage)

Writes to foreign memory regions

Wscript starts Powershell (via cmd or directly)

Yara detected Powershell download and execute

Yara detected Remcos RAT

Yara detected VBS Downloader Generic

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

SCRIPT

Link:

https://malprob.io/report/364899fa099e7386d61a4d323dde9727b74ba7b737decbd93e3756a36b73d0ae

Detection:

cve-2017-11882-shellcode

Link:

https://mwdb.cert.pl/sample/364899fa099e7386d61a4d323dde9727b74ba7b737decbd93e3756a36b73d0ae/

Threat name:

Document-Office.Exploit.CVE-2017-11882

Status:

Malicious

First seen:

2024-07-23 04:42:03 UTC

File Type:

Document

Extracted files:

AV detection:

17 of 24 (70.83%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=gzejt6qjtzzynvq2juzd3xuxe63uxj5xg7pmxwj6g5lkg23t2cxa._file

Result

Malware family:

n/a

Score:

8/10

Tags:

discovery execution

Link:

https://tria.ge/reports/240724-ex384a1clf/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Launches Equation Editor

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Office loads VBA resources, possible macro or embedded object present

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Drops file in Windows directory

Drops file in System32 directory

Command and Scripting Interpreter: PowerShell

Blocklisted process makes network request

Verdict:

Suspicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/330a6db9-25ae-4284-8562-f665fe11fbd0

Please note that we are no longer able to provide a coverage score for Virus Total.

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:	SUSP_INDICATOR_RTF_MalVer_Objects Create hunting rule
Author:	ditekSHen
Description:	Detects RTF documents with non-standard version and embedding one of the object mostly observed in exploit (e.g. CVE-2017-11882) documents.
Reference:	https://github.com/ditekshen/detection

File information

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

Web download

RemcosRAT

rtf 364899fa099e7386d61a4d323dde9727b74ba7b737decbd93e3756a36b73d0ae

(this sample)

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/3064344/

Comments

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zbet commented on 2024-07-24 04:19:40 UTC

url : hxxp://46.183.222.11/937/gcc/iamverysimplemanwhowanttobecomealoyalpersonbutnotknowwhyeverythingsoofargoingwrongway____unexpectedmovementhappeningaround.doc