Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d7752667c5505e1…

MALICIOUS

PDF

43.9 KB Created: 2021-06-03 05:09:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 2ff53156dfaa7c1d59ec2a7e17cccc76 SHA-1: bf928ebb39385ad04fd0a5376754cda8bab6647b SHA-256: 5d7752667c5505e1bddc9631949acb1147306b987ad0cb57680f5f559062d02b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document employs a common lure of free game hacks and items to trick users into clicking malicious links. The primary link directs to a URL associated with game hacks, which is a known tactic for distributing malware. While no scripts were explicitly extracted, the PDF structure and heuristics indicate it's designed to redirect users to potentially harmful external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • 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.
  • 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 https://netcdn.online/app/1094591345/pokemon-go-free-or-armored-mewtwo-game-hack PDF link annotation
    • http://nationshield.ae/userfiles/files/minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/roblox-accounts-for-sale-free_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/minecraft-for-macbook-free_GM479516143.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/how-to-change-your-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/free-robux-exe_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/unlimited-robux-2021_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/coin-master-hack-without-verification-site-zyngaplayerforumscom_GM406889139.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/coin-master-free-spins-no-human-verification_GM406889139.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/free-coin-master-spins-and-coins-for-daily_GM406889139.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/how-to-hack-coin-master-apple_GM406889139.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/robux-earner_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/how-to-hack-coin-master-game-ios_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
stream_004_off00005179.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5179 24432 bytes
SHA-256: d8262c3f4af3f21da8267951b97ab0652bc37617b02b444ff94b6052d6d999d6
font_01_sfnt_off0000893c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x893C 18284 bytes
SHA-256: f000df5e0ff3c397882f605407f868afd6afe85e646a66bbf142cb12ac0062ac