MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 14f3a738775c7d4b72d7402f900964125378c095e39711ffa0651e9be7ab2926. 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: 12

Intelligence 12 IOCs YARA 2 File information Comments

SHA256 hash:	14f3a738775c7d4b72d7402f900964125378c095e39711ffa0651e9be7ab2926
SHA3-384 hash:	cf951013aa70c8d76a31530fcdcd2eeedaa999b33f27280bbc06795863a3509de7cb5b2fcf00bdbcd1e25b71158d1e41
SHA1 hash:	09adc68f0f1f2dced60240af117282e821fc485e
MD5 hash:	86c1360a4788533fb641261ad38a49c6
humanhash:	ink-charlie-two-alaska
File name:	Marmouris_01792PDF.doc
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	193'285 bytes
First seen:	2024-01-19 13:00:56 UTC
Last seen:	2024-01-19 14:22:11 UTC
File type:	doc
MIME type:	text/rtf
ssdeep	768:fwAbZSibMX9gRWjtwAbZSibMX9gRWjNPJRb20mFWVgFHOXKzaKyxWW3kDg3Y7G8N:fwAlRkwAlR8hNxm0CFZyEW/o7PV
TLSH	T12114676DD34F02698F624336AB171E5542BCBA2EF34052B1346C537933EAC3DA1266BD
Reporter	e24111111111111
Tags:	404Keylogger CVE-2017-11882 doc RemcosRAT

e24111111154168

ΤΙΜΗ ΠΡΟΣΦΟΡΑΣ
Stefanos Pavlou [sales1@marmouris.gr]
Στάλθηκε: Παρασκευή, 19 Ιανουαρίου 2024 08:50
Συνημμένα: Marmouris_01792PDF.doc‎ (189 KB‎)
Καλημέρα

Παρακαλούμε δώστε μας την καλύτερη προσφορά σας για
συνημμένη παραγγελία μας.

Παρακαλώ για την άμεση ανταπόκριση,

ευχαριστώ

Στέφανος Παύλου
Τμήμα πωλήσεων

17ο χλμ. Παλαιά Εθν.
Οδός Θεσσαλονίκης - Καβάλας

T. 23940 52410-1, F. 23940 52552
Ε. sales1@marmouris.gr

Intelligence

File Origin

# of uploads :

# of downloads :

363

Origin country :

Vendor Threat Intelligence

Verdict:

Legit

File type:

application/msword

Has a screenshot:

False

Contains macros:

False

Detection(s):

Sanesecurity.Malware.29015.RtfHeur.Msg.UNOFFICIAL

Sanesecurity.Shelter.Malware.BadRtf.ObjUpd.UNOFFICIAL

TwinWave.EvilDoc.RoomService.20230808.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Searching for synchronization primitives

Launching a process

Creating a window

DNS request

Creating a file in the %AppData% directory

Сreating synchronization primitives

Creating a file

Setting a keyboard event handler

Connecting to a non-recommended domain

Sending a custom TCP request

Reading critical registry keys

Creating a file in the %temp% directory

Sending an HTTP GET request

Unauthorized injection to a recently created process

Unauthorized injection to a recently created process by context flags manipulation

Stealing user critical data

Creating a process from a recently created file

Result

Verdict:

Malicious

File Type:

Fake RTF File

Link:

https://app.docguard.net/14f3a738775c7d4b72d7402f900964125378c095e39711ffa0651e9be7ab2926/results/dashboard

Behaviour

BlacklistAPI detected

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

embedequation exploit packed shellcode

Link:

https://www.filescan.io/uploads/65aa72918369fab94df0e9da/reports/8ddd7736-3a42-45ad-bece-7e0b7a7914f2/overview

Verdict:

Malicious

Labled as:

CVE-2017-11882

Link:

https://www.hybrid-analysis.com/sample/14f3a738775c7d4b72d7402f900964125378c095e39711ffa0651e9be7ab2926

Label:

Malicious

Suspicious Score:

10/10

Score Malicious:

Score Benign:

Link:

https://www.malware.ai/gui/files/?id=efc165a7-9ea4-425a-8f08-defafe1f907b

Result

Verdict:

MALICIOUS

Result

Threat name:

Remcos

Detection:

malicious

Classification:

phis.troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1377396

Signature

.NET source code contains potential unpacker

.NET source code references suspicious native API functions

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Contains functionality to bypass UAC (CMSTPLUA)

Contains functionality to inject code into remote processes

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 malware configuration

Injects a PE file into a foreign processes

Installs a global keyboard hook

Machine Learning detection for dropped file

Malicious sample detected (through community Yara rule)

Maps a DLL or memory area into another process

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)

Office equation editor drops PE file

Office equation editor establishes network connection

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

Searches for Windows Mail specific files

Sigma detected: EQNEDT32.EXE connecting to internet

Sigma detected: File Dropped By EQNEDT32EXE

Sigma detected: Remcos

Snort IDS alert for network traffic

Tries to harvest and steal browser information (history, passwords, etc)

Tries to steal Instant Messenger accounts or passwords

Tries to steal Mail credentials (via file / registry access)

Tries to steal Mail credentials (via file registry)

Yara detected Remcos RAT

Yara detected UAC Bypass using CMSTP

Yara detected WebBrowserPassView password recovery tool

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

ASCII

Link:

https://malprob.io/report/14f3a738775c7d4b72d7402f900964125378c095e39711ffa0651e9be7ab2926

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/14f3a738775c7d4b72d7402f900964125378c095e39711ffa0651e9be7ab2926/

Threat name:

Document-RTF.Exploit.CVE-2017-11882

Status:

Malicious

First seen:

2024-01-19 04:16:53 UTC

AV detection:

20 of 38 (52.63%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=ctz2oodxlr6uw4wxiaxzaclecjjxrqev4olrd75amupjxz5lfeta._file

Result

Malware family:

remcos

Score:

10/10

Tags:

family:remcos botnet:b70inc collection rat spyware stealer

Link:

https://tria.ge/reports/240119-p87qrsedhn/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Launches Equation Editor

Modifies Internet Explorer settings

Modifies registry class

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Office loads VBA resources, possible macro or embedded object present

Drops file in Windows directory

Suspicious use of SetThreadContext

Accesses Microsoft Outlook accounts

Reads user/profile data of web browsers

Executes dropped EXE

Loads dropped DLL

Blocklisted process makes network request

Downloads MZ/PE file

NirSoft MailPassView

NirSoft WebBrowserPassView

Nirsoft

Remcos

Malware Config

C2 Extraction:

7070bc8.sytes.net:6696

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/14f3a738775c/report/overview.html

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:	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.

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