Malicious PDF — malware analysis report

Static analysis result for SHA-256 89f42a60aa22a1a9…

MALICIOUS

PDF

42.9 KB Created: 2021-05-17 03:08:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: c1f2887172ca1456e41bdecad537dfca SHA-1: e3521978f544e8731c44c1a6c1e439ce6aa3553e SHA-256: 89f42a60aa22a1a9423a4fb319e7effe4372f4a1c522eab2c5a49deb30917244
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a document body that explicitly mentions 'How To Hack Roblox 2021' and provides links to related content. The presence of a 'download button' heuristic and the ML classifier flagging the PDF as malicious strongly suggest a malicious intent to trick users into downloading further malware. No scripts were extracted, but the overall pattern indicates a phishing or scam lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/431946152/how-to-hack-roblox-2021-game-hack
    • https://elearning.min13bm.sch.id/__statics/gudangsoal/files/coin-master-free-spin-link-today-50_GM406889139.pdf
    • http://elearning.min13bm.sch.id/__statics/gudangsoal/files/free-robux-glitch-2021_GM431946152.pdf
    • https://elearning.min13bm.sch.id/__statics/gudangsoal/files/coin-master-free-spins-deutsch-download-2021-link_GM406889139.pdf
    • http://elearning.min13bm.sch.id/__statics/gudangsoal/files/coin-master-fun-free-spins_GM406889139.pdf
    • http://elearning.min13bm.sch.id/__statics/gudangsoal/files/robux-website_GM431946152.pdf
    • http://elearning.min13bm.sch.id/__statics/gudangsoal/files/coin-master-hack-club_GM406889139.pdf
    • http://elearning.min13bm.sch.id/__statics/gudangsoal/files/free-spins-coin-master_GM406889139.pdf
    • https://elearning.min13bm.sch.id/__statics/gudangsoal/files/coin-master-hack-2021_GM406889139.pdf
    • http://elearning.min13bm.sch.id/__statics/gudangsoal/files/hack-coin-master-32-mod-apk_GM406889139.pdf
    • https://elearning.min13bm.sch.id/__statics/gudangsoal/files/free-robux-images_GM431946152.pdf
    • http://elearning.min13bm.sch.id/__statics/gudangsoal/files/free-robux-group_GM431946152.pdf
    • http://elearning.min13bm.sch.id/__statics/gudangsoal/files/daily-coin-master-free-spin-link-facebook_GM406889139.pdf
    • https://elearning.min13bm.sch.id/__statics/gudangsoal/files/whats-robux_GM431946152.pdf
    • http://elearning.min13bm.sch.id/__statics/gudangsoal/files/coin-master-hack-no-survey-or-verification_GM406889139.pdf
    • http://elearning.min13bm.sch.id/__statics/gudangsoal/files/www-claim-gg-to-earn-free-robux_GM431946152.pdf
    • http://elearning.min13bm.sch.id/__statics/gudangsoal/files/oprewards-free-robux_GM431946152.pdf
    • http://elearning.min13bm.sch.id/__statics/gudangsoal/files/minecraft-net-download-free_GM479516143.pdf
    • https://elearning.min13bm.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-xbox-360_GM479516143.pdf
    • http://elearning.min13bm.sch.id/__statics/gudangsoal/files/coin-master-free-coins-link-2021_GM406889139.pdf
    • http://elearning.min13bm.sch.id/__statics/gudangsoal/files/minecraft-pe-free-download_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a3c.bin
f33aeac4823376d0d3095102aa92c213e7922db85f69bef61204269f98671bc6		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A3C 24716 bytes
font_01_sfnt_off00008377.bin
82830e686af2a9787477f8716b243dfdc4e826425849e85a18f820c98dc205f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8377 18748 bytes

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