Malicious PDF — malware analysis report

Static analysis result for SHA-256 e706267927ab4dd9…

MALICIOUS

PDF

43.8 KB Created: 2021-06-03 23:34:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: fdf720c253c9766a363fe5c1e3a99c9c SHA-1: 5335bd34e1cc67d99346a47bfe2b9f9634669446 SHA-256: e706267927ab4dd93693f3bd2674ea7e75b8458e742d99528c890b430fb72312
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to a website offering a 'Coin Master Free Spins 2021 iOS Game Hack'. This lure, combined with the heuristic firings for malicious redirectors and game hack lures, strongly suggests a social engineering attack aimed at tricking users into visiting a potentially malicious site. While no scripts were explicitly extracted, the nature of the lure and the embedded URLs point towards a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/406889139/coin-master-free-spins-2021-ios-game-hack In PDF document text
    • https://lib.unitri.ac.id//repository/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-free-spin-app-iphone_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/tiktok-free-like-trial_GM835599320.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/minecraft-mod-menu_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/coin-master-hack-no-download_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-free-daily-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/how-to-o-get-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-hack-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-download-hack-ios_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/roblox-hackprogamers-com_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/hackear-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/hack-coin-master-apk-33_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/coin-master-hack-app-for-ios_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/earn-roblox_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004e03.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E03 25488 bytes
SHA-256: ee417e7b43f9c36fd9abe64b594104fc6515952b012d7433872bfd6ecd73537d
font_01_sfnt_off00008874.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8874 18288 bytes
SHA-256: 09aa2f2ae7c5a995dc44b8644eea5b06d8fda2724c1331629896e56f28692ab2

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