Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab64fa3499e0c976…

MALICIOUS

PDF

47.5 KB Created: 2021-05-10 13:33:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: cdf7558cd86f484fdaa6dfc5171115f6 SHA-1: c5b7eb652d68139cc007070620d8abfcdb55a16e SHA-256: ab64fa3499e0c9763c6ff4cf388488b81e67a9961f36553e9b356f2073ba7908
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 0.9909

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/coin-master-spin-link-today-2021-game-hack PDF link annotation
    • https://elearning.mimsatuprob.sch.id/__statics/gudangsoal/files/how-to-get-to-village-3-in-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mimsatuprob.sch.id/__statics/gudangsoal/files/hack-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mimsatuprob.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mimsatuprob.sch.id/__statics/gudangsoal/files/how-do-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.mimsatuprob.sch.id/__statics/gudangsoal/files/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • https://elearning.mimsatuprob.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master-facebook_GM406889139.pdfIn PDF document text
    • https://elearning.mimsatuprob.sch.id/__statics/gudangsoal/files/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mimsatuprob.sch.id/__statics/gudangsoal/files/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • https://elearning.mimsatuprob.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • https://elearning.mimsatuprob.sch.id/__statics/gudangsoal/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mimsatuprob.sch.id/__statics/gudangsoal/files/free-spins-october-28-2021-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mimsatuprob.sch.id/__statics/gudangsoal/files/coin-master-pc-hack-tool_GM406889139.pdfIn PDF document text
    • https://elearning.mimsatuprob.sch.id/__statics/gudangsoal/files/coin-master-time-speed-hack_GM406889139.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000465a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x465A 28292 bytes
SHA-256: e838aa8e5ddcd4ce2bfc7801dbac41712b0e440824f5466ae2efee564d72baba
font_01_sfnt_off000087a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87A0 4172 bytes
SHA-256: b8c773332b7b1843947079521492432f7a5528dea75059834bc5cf89e753720b
font_02_sfnt_off0000964f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x964F 18648 bytes
SHA-256: 85a64f08e45ce4d12cb3dea07aac547d867e231e390d244bf8ece1ec3ac8270e

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