Malicious PDF — malware analysis report

Static analysis result for SHA-256 01f4383e1416eeca…

MALICIOUS

PDF

36.6 KB Created: 2021-07-03 11:34:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 53b1b637e1b1618fe3244c4a3a703e6d SHA-1: c4f9502218583aa849a4f161d2971f8ba1d70818 SHA-256: 01f4383e1416eecada3625649072dae763441c5a935f790bcdd86eebce5dc6fc
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of embedded URLs, many of which appear to be part of a link farm designed to attract users with promises of free items or hacks for popular games. The presence of a "download button" heuristic and the ML classifier's high confidence score indicate a malicious intent. The document likely serves as a lure to direct users to malicious websites or to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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 http://netcdn.tw/app/406889139/static-moonactive-net-free-spins-game-hack
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/fros-digimon-v12-hack-roblox_GM431946152.pdf
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/free-robux-no-human-verify_GM431946152.pdf
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/how-to-get-free-builders-club-and-robux_GM431946152.pdf
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/pokemon-go-free-vs-pro_GM1094591345.pdf
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-no-survey_GM431946152.pdf
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/game-hack-coin-master_GM406889139.pdf
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/free-rare-cards-for-coin-master_GM406889139.pdf
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/www-roblox-com-free-robux_GM431946152.pdf
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/how-to-get-hack-to-hack-people-on-roblox_GM431946152.pdf
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/minecraft-realms-free-codes_GM479516143.pdf
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/coin-master-hack-version-download-2021_GM406889139.pdf
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/veil-roblox-hack_GM431946152.pdf
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/mosttechs-coin-master-free-spins_GM406889139.pdf
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-bedrock-edition-on-pc-for-free_GM479516143.pdf
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/free-roblox-accounts-usernames-and-passwords-2021_GM431946152.pdf
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/free-spins-and-coins-blogspot-coin-master_GM406889139.pdf
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/free-robux-apk_GM431946152.pdf
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-no-human-verification_GM431946152.pdf
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/is-there-an-actual-hack-that-work-for-coin-master_GM406889139.pdf
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/all-roblox-portal-heroes-cheats_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000037f4.bin
f84d4c27ffa460c4b1de96f8781d6c4d64b51e26a032625cb129905abbadd328		 pdf-font-stream PDF embedded font (sfnt) at offset 0x37F4 23252 bytes
font_01_sfnt_off00006c8a.bin
f422a02d81899bade32c4e0036a2fd6befc986b55d68913fba82803fa281f610		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C8A 18288 bytes

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