Malicious PDF — malware analysis report

Static analysis result for SHA-256 2849835a0cb1f8a8…

MALICIOUS

PDF

35.1 KB Created: 2021-07-09 14:29:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: d0d5ecc81adb63f0cea807cc6b274b2a SHA-1: aaa4913cb39142d0b553d15ebf1a31ddcb9cba11 SHA-256: 2849835a0cb1f8a8a8d7caae1633d40819d67b895675829b67ed4f075180d20e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links disguised as generators or hacks for popular games, such as 'how-to-get-free-coins-in-mcpe-master-game-hack'. These links redirect to known malicious infrastructure, indicating a phishing or scam attempt. The document body and heuristics confirm the lure is to trick users into visiting these malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/how-to-get-free-coins-in-mcpe-master-game-hack In PDF document text
    • http://elearning.mts-al-ikhlas-woimenda.sch.id/__statics/gudangsoal/files/hack-coin-master-apk-ios_GM406889139.pdfIn PDF document text
    • http://elearning.mts-al-ikhlas-woimenda.sch.id/__statics/gudangsoal/files/rs-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mts-al-ikhlas-woimenda.sch.id/__statics/gudangsoal/files/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://elearning.mts-al-ikhlas-woimenda.sch.id/__statics/gudangsoal/files/always-day-roblox-hack_GM431946152.pdfIn PDF document text
    • http://elearning.mts-al-ikhlas-woimenda.sch.id/__statics/gudangsoal/files/minecraft-pe-apk-download-free-015-0_GM479516143.pdfIn PDF document text
    • http://elearning.mts-al-ikhlas-woimenda.sch.id/__statics/gudangsoal/files/free-coin-master-credit_GM406889139.pdfIn PDF document text
    • http://elearning.mts-al-ikhlas-woimenda.sch.id/__statics/gudangsoal/files/rbx-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mts-al-ikhlas-woimenda.sch.id/__statics/gudangsoal/files/tiktok-free-games_GM835599320.pdfIn PDF document text
    • http://elearning.mts-al-ikhlas-woimenda.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://elearning.mts-al-ikhlas-woimenda.sch.id/__statics/gudangsoal/files/free-roblox-printables_GM431946152.pdfIn PDF document text
    • http://elearning.mts-al-ikhlas-woimenda.sch.id/__statics/gudangsoal/files/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mts-al-ikhlas-woimenda.sch.id/__statics/gudangsoal/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mts-al-ikhlas-woimenda.sch.id/__statics/gudangsoal/files/instant-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mts-al-ikhlas-woimenda.sch.id/__statics/gudangsoal/files/how-to-get-legends-for-free-assasin-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mts-al-ikhlas-woimenda.sch.id/__statics/gudangsoal/files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mts-al-ikhlas-woimenda.sch.id/__statics/gudangsoal/files/free-minecraft-capes-no-mods_GM479516143.pdfIn PDF document text
    • http://elearning.mts-al-ikhlas-woimenda.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://elearning.mts-al-ikhlas-woimenda.sch.id/__statics/gudangsoal/files/coin-master-hack-ios-download-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mts-al-ikhlas-woimenda.sch.id/__statics/gudangsoal/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mts-al-ikhlas-woimenda.sch.id/__statics/gudangsoal/files/how-to-make-your-own-shirt-in-roblox-for-free_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003264.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3264 23076 bytes
SHA-256: ff503dcd85543ef5ee82f33baf5b85777e02be21610bb8bfb9ccb2ff611e17a4
font_01_sfnt_off0000665c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x665C 18336 bytes
SHA-256: 429c8df05e4b8cc7b4d833e2e7b4429a19a92e68eadf29af331a617609675059

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