Malicious PDF — malware analysis report

Static analysis result for SHA-256 6de2bb486825ca76…

MALICIOUS

PDF

44.3 KB Created: 2021-05-11 20:14:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: cacd5952847b5af35961590dfdea5779 SHA-1: 131b2629ffce6dd7510979168a20d5de51887a71 SHA-256: 6de2bb486825ca7644f9216c29308fee7f8099b6bc8ac1af852e09b7b0ea9d07
200 Risk Score

Malware Insights

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

The PDF document employs a social engineering lure, presenting itself as a "Minecraft Xbox 360 Free" download to entice users to click on malicious links. These links lead to known redirector infrastructure, indicating an attempt to direct users to potentially harmful websites. The document's structure and embedded links align with tactics used to distribute malware or phish for information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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/479516143/minecraft-xbox-360-free-game-hack In PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/200-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/minecraft-survival-free_GM479516143.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/real-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-33-download_GM406889139.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/optifine-mcpe_GM479516143.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/coin-master-cheat-engine-hack_GM406889139.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/free-coin-master-generator_GM406889139.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/free-spin-card-exchange-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/get-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/coin-master-computer-hack_GM406889139.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/coin-mster-free_GM406889139.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/coin-master-free-spin-and-coins-links-home_GM406889139.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/real-free-robux-generator_GM431946152.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_003_off00004eb4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EB4 25756 bytes
SHA-256: d90e9c3c41c2d133e5873fcd15ffff47f1791938475bfbc12bcbaa14cb679952
font_01_sfnt_off00008970.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8970 18820 bytes
SHA-256: 548eb6d6d76b0782fa129353e40cf244a6945086c4e3cc69bdc72bd715347561

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