Malicious PDF — malware analysis report

Static analysis result for SHA-256 adae49ba341e082c…

MALICIOUS

PDF

39.4 KB Created: 2021-05-21 05:10:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3df9f5f491892e079a98de06d202a089 SHA-1: 934153491393fecae3f9a6ff956635fc95549163 SHA-256: adae49ba341e082c8a3016d848f2e7ca985b490cc895a9c6abbdaa4da9e14906
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-pe-free-apk-game-hack PDF link annotation
    • https://elearning.mtsn1tapteng.sch.id/__statics/gudangsoal/files/daily-coin-master-free-spin-apk_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1tapteng.sch.id/__statics/gudangsoal/files/coin-master-free-spins-generator-no-verification_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1tapteng.sch.id/__statics/gudangsoal/files/robux-adder_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1tapteng.sch.id/__statics/gudangsoal/files/coin-master-free-codes_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1tapteng.sch.id/__statics/gudangsoal/files/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • https://discord.ggIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003572.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3572 25560 bytes
SHA-256: 8704678b577b6ced19a30b0311ab0cdbdaecc22d5e5a49d67962f877a4f22b7b
font_01_sfnt_off00006f02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F02 3000 bytes
SHA-256: 415b8ca07467cc6b1d74ddc9a38943fb6d263a241d6e4db9f38ff3acab56a07a
font_02_sfnt_off00007951.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7951 18068 bytes
SHA-256: 35104518e66c8492531759eb706d86fdb36771bd3dd1e1625049e5bd6be6693d

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