Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1a5fe02e00e3fdb…

MALICIOUS

PDF

46.2 KB Created: 2021-06-03 10:46:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2a940c53f66e3b689b59736d72bcf9aa SHA-1: 124c7f85f6e77a4872ffe5c0c2e7b34a74ea0936 SHA-256: d1a5fe02e00e3fdb626de28234be0a2611c62059a385409309d3559165def03c
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 0.9864

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.online/app/431946152/jailbreak-roblox-hack-game-hack PDF link annotation
    • http://pustaka1.unindra.id/repository/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/coin-master-free-spins-link-today-twitter_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/pubg-uc-hack-software_GM1330123889.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/free-coinmaster-spins_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/need-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/add-robux_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/no-human-verification_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/apk-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/how-to-make-roblox-clothes-for-free_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/coin-master-free-daily-spins-2021_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/is-minecraft-free-on-computer_GM479516143.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/minecraft-win-10-free_GM479516143.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000052a6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52A6 27152 bytes
SHA-256: 281d4fd4c2ae41244f9eb10b349881508f3a49b5e9d291b54f3b79d50533a81e
font_01_sfnt_off0000918b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x918B 18468 bytes
SHA-256: 47180ef6fd58f08eabdcf8de8850cf434555edaa977bcc29afa6d0c928aef64e

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