Malicious PDF — malware analysis report

Static analysis result for SHA-256 32982ac0f72aaa24…

MALICIOUS

PDF

43.7 KB Created: 2021-06-03 06:28:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 4a00a210cc6d374e66df868bcb836706 SHA-1: f480ed23ac34e8da7998e03e211b685d1f53f883 SHA-256: 32982ac0f72aaa2416931a2082edaecbafdff1f48b8b53cb8cf033eb8c80af2d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links to known malicious redirectors, masquerading as game hacks or generators. The primary lure directs users to 'netcdn.online', which likely serves as a landing page for a malicious download or further redirection. The presence of a visual download button heuristic further supports the malicious intent of tricking the user into downloading a payload.

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/479516143/minecraft-server-free-trial-game-hack In PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/roblox-com-hack_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/how-to-get-free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/how-do-you-get-roebucks_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/collect-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/free-minecraft-capes-no-mods_GM479516143.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/hack-coin-master-game-download_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/free-coin-master-spins-without-human-verification_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/how-to-get-free-pet-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/oprewards-com-robux_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/free-robux-picture_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/freerobuxhack-us_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/scaffold-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/how-to-get-roblox-credit-for-free_GM431946152.pdfIn PDF document text
    • https://playhack.in/minecraftIn 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_off00005075.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5075 25116 bytes
SHA-256: 25b8dd81325cf63ee245de6a6ea8d062e9184088997183856cff5c43e91fa6d0
font_01_sfnt_off000089b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89B8 17756 bytes
SHA-256: ec9c232ae7f2e9c61777f8d0f8676ce95e90a2d5950c4a4b4c910214713d299f

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