Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ef2410aa53d853f…

MALICIOUS

PDF

42.1 KB Created: 2021-05-13 14:44:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3c361dab26bab45d671d0c720eade36b SHA-1: 189d02ba50e9545e0944d6d153c670ed8adceb82 SHA-256: 2ef2410aa53d853f8b9ffac545432816509d564c0744f48a09c0c910ed43f62e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

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 0.9971

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/406889139/how-to-get-free-spins-and-coins-on-coin-master-game-hack PDF link annotation
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/roblox-free-online-game_GM431946152.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-exe_GM406889139.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/coin-master--hack_GM406889139.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/how-do-you-get-roebucks_GM431946152.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/rbx-earn_GM431946152.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/free-minecraft-mods_GM479516143.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/free-girl-hair-roblox_GM431946152.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/coin-master-hacksco_GM406889139.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/coin-master-cheats_GM406889139.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/how-to-get-free-followers-on-roblox_GM431946152.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/hackear-coin-master-sin-root_GM406889139.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/apk-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/free-coins-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/freespinandcoinblogspotcom-2021-11-coinmasterfreespinandcoinlinkshtml_GM406889139.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/free-robux-no-verification-no-survey_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_off00004bac.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BAC 24184 bytes
SHA-256: d3a998a7e201f8b0e9d6c93cbee49f7c4fd032179060bed542a55beec0f29274
font_01_sfnt_off00008281.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8281 18224 bytes
SHA-256: c3eeb8e5bbecb0a66d0dccf890560b2772aaf25cfcf2943a976e8e45774626aa

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