Malicious PDF — malware analysis report

Static analysis result for SHA-256 530540a180738a06…

MALICIOUS

PDF

45.3 KB Created: 2021-05-14 06:12:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 180646ec658a45df3acf04a5603774a4 SHA-1: 766ff018350c6e3fc1b43abe3ed5c86486472170 SHA-256: 530540a180738a060f893a0a2d36a229a59c227e7476a2329d0a645c366b7977
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is designed as a lure, promising free game currency or hacks to entice users to click on links. The embedded URLs, such as 'https://netcdn.xyz/app/406889139/coin-master-free-spins-daily-2021-game-hack', lead to known malicious redirectors. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a phishing or scamming attempt, likely leveraging social engineering to direct users to potentially malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9551

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.xyz/app/406889139/coin-master-free-spins-daily-2021-game-hack In PDF document text
    • https://tanahlot.id/assets/CKImages/files/roblox-login-hack_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/free-minecraft-domain_GM479516143.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/coin-master-free-spins-and-coins-app_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/how-to-get-free-mods-in-minecraft_GM479516143.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/oginject-co_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/rewards-roblox_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/hack-coin-pro-coin-master_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/free-roblox-accounts-generator_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/hack-coin-master-iphone_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/coin-master-free-spins-hack-link_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/roblox-hack-generator_GM431946152.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049e1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49E1 24956 bytes
SHA-256: 1264dd6a740c327fb1ccb11404e11f632318bd21194dad9ea88a60d6a8bf080f
font_01_sfnt_off00008330.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8330 2884 bytes
SHA-256: 4d5450ce7e6d7db995ea7e6ffcd90efeba3e66825e548aa429b230fb003c0574
font_02_sfnt_off00008d13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D13 18708 bytes
SHA-256: 6b4e533402effa4bef1f1a99bc4bd1715a96498a79031c9daf0202c2985212b5

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