MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 95be57795b850e5aa098c80a107bafdb581da7653d9b57b8f2d37b89880de224. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 95be57795b850e5aa098c80a107bafdb581da7653d9b57b8f2d37b89880de224
SHA3-384 hash: 00abc05f4767aaf39e1ab7c2ac7d4a79b90c554defbbbb5d285cad190a198adddbc940e59b547cb7b4f778b754fce7b8
SHA1 hash: c6e943143771fc3fd7c2c548f5fddcd6013d9302
MD5 hash: dde9d7d091ac0cc1d35515d259d8ca6f
humanhash: mobile-uncle-solar-mockingbird
File name:Offer ZI-0428.doc
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:300'804 bytes
First seen:2024-07-01 11:56:47 UTC
Last seen:2024-07-01 12:00:00 UTC
File type:Word file doc
MIME type:text/rtf
ssdeep 6144:4GuqGuqGuqGuqGuqGuqGuqGuqGuqGu9tNcTr:4
TLSH T18954D26DD34B02598F620337AB571E5142BDBA6EF38552B1306C537933DAC3CA2252BE
Reporter cocaman
Tags:CVE-2017-11882 doc RemcosRAT


Avatar
cocaman
Malicious email (T1566.001)
From: "=?UTF-8?Q?Jakob_M=C3=BCnzer?= <info@lmidtowncardo.com>" (likely spoofed)
Received: "from mail.lmidtowncardo.com (unknown [45.63.123.131]) "
Date: "Mon, 01 Jul 2024 02:34:32 -0700"
Subject: "Offer ZI-0428"
Attachment: "Offer ZI-0428.doc"

Intelligence

File Origin
# of uploads :
3
# of downloads :
406
Origin country :
CH CH
Vendor Threat Intelligence
Verdict:
Legit
File type:
application/msword
Has a screenshot:
False
Contains macros:
False
Detection(s):
Sanesecurity.Malware.29015.RtfHeur.Msg.UNOFFICIAL
Create hunting rule

Sanesecurity.Shelter.Malware.BadRtf.ObjUpd.UNOFFICIAL
Create hunting rule

MiscreantPunch.EvilRTF.CommonLure.UNOFFICIAL
Create hunting rule

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

TwinWave.EvilDoc.RoomService.20230808.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=668299eb4aef5fb03e2ed16awin10vpnfull_triage
Tags:
Execution Exploit Generic Infostealer Network Office Static Stealth
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Using the Windows Management Instrumentation requests
Creating a window
DNS request
Sending an HTTP GET request
Creating a file in the %AppData% directory
Сreating synchronization primitives
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Creating a process with a hidden window
Creating a file
Setting a keyboard event handler
Connecting to a non-recommended domain
Connection attempt
Sending a custom TCP request
Launching a service
Reading critical registry keys
Connection attempt by exploiting the app vulnerability
Launching a file downloaded from the Internet
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
Enabling autorun by creating a file
Result
Verdict:
Malicious
File Type:
Fake RTF File
Link:
https://app.docguard.net/95be57795b850e5aa098c80a107bafdb581da7653d9b57b8f2d37b89880de224/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/66829994eae3878d8f3c4e4d/reports/cd81ca3a-91a0-44b5-9a14-4ea75be13d00/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/95be57795b850e5aa098c80a107bafdb581da7653d9b57b8f2d37b89880de224
Label:
Malicious
Suspicious Score:
10/10
Score Malicious:
1%
Score Benign:
0%
Link:
https://www.malware.ai/gui/files/?id=c9ce87c0-62f2-43ac-a4af-032bac43c435
Result
Verdict:
MALICIOUS
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1465260
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
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 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
Detected Remcos RAT
Document exploit detected (process start blacklist hit)
Drops PE files with a suspicious file extension
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Installs new ROOT certificates
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 submitted file
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: Equation Editor Network Connection
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Suspicious Microsoft Office Child Process
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1465260 Sample: Offer ZI-0428.doc Startdate: 01/07/2024 Architecture: WINDOWS Score: 100 68 Found malware configuration 2->68 70 Malicious sample detected (through community Yara rule) 2->70 72 Antivirus detection for URL or domain 2->72 74 18 other signatures 2->74 9 WINWORD.EXE 291 18 2->9         started        11 taskeng.exe 1 2->11         started        process3 process4 13 EQNEDT32.EXE 11 9->13         started        18 EQNEDT32.EXE 9->18         started        20 znlzneAxBVd.exe 11->20         started        dnsIp5 66 sinopecllc.top 31.192.235.145, 49164, 80 GLESYS-ASSE Russian Federation 13->66 58 C:\Users\user\AppData\...\plugman23456.scr, PE32 13->58 dropped 60 C:\Users\user\AppData\Local\...\plug[1].scr, PE32 13->60 dropped 102 Office equation editor establishes network connection 13->102 104 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 13->104 22 plugman23456.scr 5 13->22         started        106 Antivirus detection for dropped file 20->106 108 Contains functionality to bypass UAC (CMSTPLUA) 20->108 110 Machine Learning detection for dropped file 20->110 112 6 other signatures 20->112 26 znlzneAxBVd.exe 20->26         started        28 powershell.exe 20->28         started        30 powershell.exe 20->30         started        32 schtasks.exe 20->32         started        file6 signatures7 process8 file9 54 C:\Users\user\AppData\...\znlzneAxBVd.exe, PE32 22->54 dropped 56 C:\Users\user\AppData\Local\...\tmpF0B6.tmp, XML 22->56 dropped 84 Antivirus detection for dropped file 22->84 86 Tries to steal Mail credentials (via file registry) 22->86 88 Machine Learning detection for dropped file 22->88 92 3 other signatures 22->92 34 plugman23456.scr 3 13 22->34         started        39 powershell.exe 4 22->39         started        41 powershell.exe 4 22->41         started        43 schtasks.exe 22->43         started        90 Detected Remcos RAT 26->90 signatures10 process11 dnsIp12 62 antfly50.sytes.net 80.85.154.121, 1980, 49165, 49166 CHELYABINSK-SIGNAL-ASRU Russian Federation 34->62 64 geoplugin.net 178.237.33.50, 49167, 80 ATOM86-ASATOM86NL Netherlands 34->64 52 C:\ProgramData\remcos\logs.dat, data 34->52 dropped 76 Detected Remcos RAT 34->76 78 Maps a DLL or memory area into another process 34->78 80 Installs a global keyboard hook 34->80 45 plugman23456.scr 34->45         started        48 plugman23456.scr 34->48         started        50 plugman23456.scr 34->50         started        82 Installs new ROOT certificates 39->82 file13 signatures14 process15 signatures16 94 Tries to steal Instant Messenger accounts or passwords 45->94 96 Tries to steal Mail credentials (via file / registry access) 45->96 98 Searches for Windows Mail specific files 45->98 100 Tries to harvest and steal browser information (history, passwords, etc) 48->100
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/95be57795b850e5aa098c80a107bafdb581da7653d9b57b8f2d37b89880de224
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/95be57795b850e5aa098c80a107bafdb581da7653d9b57b8f2d37b89880de224/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-07-01 11:56:53 UTC
File Type:
Document
Extracted files:
3
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sw7fo6k3quhfvieyzafba65p3nmb3j3fhwnvpohs2n5ytcan4isa._file
Result
Malware family:
n/a
Score:
  4/10
Tags:
n/a
Link:
https://tria.ge/reports/240701-n4kvrstdkn/
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 use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/7e56f379-0f21-4b5b-baea-c48f4b90f4b5
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/95be57795b85/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/95be57795b850e5aa098c80a107bafdb581da7653d9b57b8f2d37b89880de224

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

File information

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

Malspam

RemcosRAT

Word file doc 95be57795b850e5aa098c80a107bafdb581da7653d9b57b8f2d37b89880de224

(this sample)

  
Delivery method
Distributed via e-mail attachment

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