Malicious PDF — malware analysis report

Static analysis result for SHA-256 50b9150b3e421ea0…

MALICIOUS

PDF

34.7 KB Created: 2021-07-05 09:28:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 1215a8d8552a8394b4778cf8eb2563d5 SHA-1: ab0c2977528cd6190663a069b4cda38ef04186e6 SHA-256: 50b9150b3e421ea0e233e9d237a472b938d341398fea56d2325504de41852dbd
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to external websites, including one that directly advertises a 'coin-master-facebook-free-spins-game-hack'. The presence of numerous links to game-related hacks and generators, some pointing to raw IP addresses, strongly suggests a social engineering lure. The document's content and embedded links are designed to entice users into clicking through to potentially malicious sites, likely for downloading further malware or phishing for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/406889139/coin-master-facebook-free-spins-game-hack PDF link annotation
    • http://118.98.227.172/opac/repository/free-roblox-injector-v3rmillion_GM431946152.pdfPDF link annotation
    • http://118.98.227.172/opac/repository/how-to-hack-someones-account-roblox_GM431946152.pdfIn PDF document text
    • http://118.98.227.172/opac/repository/how-to-stop-people-from-hacking-you-in-roblox_GM431946152.pdfIn PDF document text
    • http://118.98.227.172/opac/repository/roblox-case-clciker-hack_GM431946152.pdfIn PDF document text
    • http://118.98.227.172/opac/repository/how-to-get-free-robux-no-scams-no-human-verification_GM431946152.pdfIn PDF document text
    • http://118.98.227.172/opac/repository/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://118.98.227.172/opac/repository/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • http://118.98.227.172/opac/repository/free-shovocado-roblox_GM431946152.pdfIn PDF document text
    • http://118.98.227.172/opac/repository/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://118.98.227.172/opac/repository/free-back-accessories-roblox_GM431946152.pdfIn PDF document text
    • http://118.98.227.172/opac/repository/how-to-hack-roblox-im-poison_GM431946152.pdfIn PDF document text
    • http://118.98.227.172/opac/repository/coment-installer-un-cheat-roblox-bee-swarm-simulator-miel-infini_GM431946152.pdfIn PDF document text
    • http://118.98.227.172/opac/repository/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://118.98.227.172/opac/repository/how-to-hack-anyone-in-roblox_GM431946152.pdfIn PDF document text
    • http://118.98.227.172/opac/repository/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://118.98.227.172/opac/repository/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://118.98.227.172/opac/repository/free-script-executor-lvl-7-roblox-5-18_GM431946152.pdfIn PDF document text
    • http://118.98.227.172/opac/repository/roblox-cheat-codes-for-iphone_GM431946152.pdfIn PDF document text
    • http://118.98.227.172/opac/repository/speed-hack-roblox-download-free_GM431946152.pdfIn PDF document text
    • http://118.98.227.172/opac/repository/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31C2 22664 bytes
SHA-256: 662e9ff49c47bc7d27c0d6f59b424054e4e62a0ef055ccc548f56af9b129cd40
font_01_sfnt_off0000646e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x646E 18504 bytes
SHA-256: 46e57e29613dd658c869552faba04ca4652fd731f51f8a20629119a06e53848c

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