MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 83477f2ff58b5968456aef691436e76c5872e41fdf1c1cd8e37d1bdef243a3a7. 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


SnakeKeylogger


Vendor detections: 14


Intelligence 14 IOCs YARA 1 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 83477f2ff58b5968456aef691436e76c5872e41fdf1c1cd8e37d1bdef243a3a7
SHA3-384 hash: ca0fefd4c1fd1054802bb7c480f97f8052d895af72997e8ba217e2a9d171af0d6aa9dead9c5a7f6f8a74f332d03a75de
SHA1 hash: 4de549d33fc53293fc033609f5b881e2c87eb70a
MD5 hash: f4e21b4629aaf817a7bd3410d1910c52
humanhash: tennessee-ack-summer-video
File name:f4e21b4629aaf817a7bd3410d1910c52
Download: download sample
Signature SnakeKeylogger
Create hunting rule
File size:95'164 bytes
First seen:2024-07-17 08:15:03 UTC
Last seen:2024-07-17 10:32:19 UTC
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 384:k6PoDFWNm9sZH16ZwShzgiL60zm8FxQggSdLNS+VHtjxroT7j9H4qfrST0AKAQ:kHknZH16ZwShc54m8FOEPS+troffWE
TLSH T12E93E01DC38F44A5CF45A777132B0A4846FCB33EB20555A6B8AC97323BED82D49A54BC
Reporter zbetcheckin
Tags:CVE-2017-11882 rtf SnakeKeylogger

Intelligence

File Origin
# of uploads :
2
# of downloads :
90
Origin country :
FR FR
Vendor Threat Intelligence
Verdict:
Legit
File type:
application/rtf
Has a screenshot:
False
Contains macros:
False
Detection(s):
Sanesecurity.Shelter.Malware.BadRtf.ObjUpd.UNOFFICIAL
Create hunting rule

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

TwinWave.EvilRTF.ObfusRunAway.20240409.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66977d89da4062e29ae89ebe
Tags:
Exploit Generic Office Agent
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
Sending an HTTP GET request to an infection source by exploiting the app vulnerability
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
Sending an HTTP GET request to an infection source
Sending an HTTP GET request
Possible injection to a system process
Connection attempt to an infection source
Connection attempt to an infection source by exploiting the app vulnerability
Creating a process from a recently created file
Unauthorized injection to a system process
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/83477f2ff58b5968456aef691436e76c5872e41fdf1c1cd8e37d1bdef243a3a7/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/66977d8e3d7227f937942cef/reports/303f2a66-fb09-4ebd-bc96-9ee10b29e347/overview
Verdict:
Malicious
Labled as:
CVE-2017-11882
Link:
https://www.hybrid-analysis.com/sample/83477f2ff58b5968456aef691436e76c5872e41fdf1c1cd8e37d1bdef243a3a7
Result
Verdict:
MALICIOUS
Result
Threat name:
Snake Keylogger
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1474762
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Document exploit detected (process start blacklist hit)
Found malware configuration
Found potential equation exploit (CVE-2017-11882)
Injects a PE file into a foreign processes
Installs new ROOT certificates
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Obfuscated command line found
Office drops RTF file
Office equation editor establishes network connection
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
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
Snort IDS alert for network traffic
Suspicious execution chain found
Suspicious powershell command line found
System process connects to network (likely due to code injection or exploit)
Tries to detect the country of the analysis system (by using the IP)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses the Telegram API (likely for C&C communication)
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 Generic Downloader
Yara detected Powershell download and execute
Yara detected Snake Keylogger
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1474762 Sample: EHOsLAUB7J.rtf Startdate: 17/07/2024 Architecture: WINDOWS Score: 100 53 Snort IDS alert for network traffic 2->53 55 Found malware configuration 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 24 other signatures 2->59 9 WINWORD.EXE 336 18 2->9         started        process3 file4 29 C:\Users\...\~WRD0000.tmp:Zone.Identifier, ASCII 9->29 dropped 31 C:\Users\user\Desktop\~WRD0000.tmp, Rich 9->31 dropped 33 C:\Users\user\DesktopHOsLAUB7J.rtf (copy), Rich 9->33 dropped 35 ~WRF{38DA3F9D-546E...F-A0C8743FCB86}.tmp, Composite 9->35 dropped 12 EQNEDT32.EXE 12 9->12         started        process5 dnsIp6 51 103.161.133.121, 49161, 49165, 80 AARNET-AS-APAustralianAcademicandResearchNetworkAARNe unknown 12->51 37 C:\...\greatlionloveroseentierworldlove.vBS, Unicode 12->37 dropped 83 Office equation editor establishes network connection 12->83 85 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 12->85 17 wscript.exe 11 12->17         started        file7 signatures8 process9 dnsIp10 39 pastecode.dev 17->39 41 pastecode.dev 172.66.40.229, 443, 49162 CLOUDFLARENETUS United States 17->41 61 System process connects to network (likely due to code injection or exploit) 17->61 63 Suspicious powershell command line found 17->63 65 Wscript starts Powershell (via cmd or directly) 17->65 67 5 other signatures 17->67 21 powershell.exe 12 5 17->21         started        signatures11 process12 dnsIp13 43 ia803405.us.archive.org 207.241.232.195, 443, 49163, 49164 INTERNET-ARCHIVEUS United States 21->43 69 Writes to foreign memory regions 21->69 71 Suspicious execution chain found 21->71 73 Injects a PE file into a foreign processes 21->73 25 RegAsm.exe 12 2 21->25         started        signatures14 process15 dnsIp16 45 reallyfreegeoip.org 25->45 47 api.telegram.org 25->47 49 7 other IPs or domains 25->49 75 Tries to steal Mail credentials (via file / registry access) 25->75 77 Tries to harvest and steal browser information (history, passwords, etc) 25->77 signatures17 79 Tries to detect the country of the analysis system (by using the IP) 45->79 81 Uses the Telegram API (likely for C&C communication) 47->81
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/83477f2ff58b5968456aef691436e76c5872e41fdf1c1cd8e37d1bdef243a3a7
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/83477f2ff58b5968456aef691436e76c5872e41fdf1c1cd8e37d1bdef243a3a7/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-07-16 18:12:59 UTC
File Type:
Document
Extracted files:
5
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qndx6l7vrnmwqrlk55urinxhnrmhfza734obzwhdpun554sduotq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
execution
Link:
https://tria.ge/reports/240717-j5l21avgng/
Behaviour
Suspicious use of WriteProcessMemory
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
Office loads VBA resources, possible macro or embedded object present
Command and Scripting Interpreter: PowerShell
Enumerates physical storage devices
Drops file in Windows directory
Drops file in System32 directory
Blocklisted process makes network request
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e82280b0-fb56-4fa2-afa5-5cc0568d6f5c
Malware family:
SnakeKeylogger
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/83477f2ff58b/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.29
Link:
https://yomi.yoroi.company/submissions/83477f2ff58b5968456aef691436e76c5872e41fdf1c1cd8e37d1bdef243a3a7

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

SnakeKeylogger

Rich Text Format (RTF) rtf 83477f2ff58b5968456aef691436e76c5872e41fdf1c1cd8e37d1bdef243a3a7

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3047820/

Comments


Avatar
zbet commented on 2024-07-17 08:15:04 UTC

url : hxxp://103.161.133.121/60960/BH/bh..x.x.xbh.....x.x.x.xbhbh.doc