Malicious PDF — malware analysis report

Static analysis result for SHA-256 aba3b0b5a62a1826…

MALICIOUS

PDF

47.9 KB Created: 2021-06-04 01:17:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: fbf1cbde1c7f10f7e40d4fd9d0b98b24 SHA-1: d35be6fbca2e213536af7e33dbf6ce77efb39f9e SHA-256: aba3b0b5a62a18265bae02c6afc54a244178cec3edb9ebb5fc316e77a440f73b
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 0.9769

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/406889139/how-do-i-get-free-coins-in-coin-master-game-hack PDF link annotation
    • http://slims.abulyatama.ac.id/repository/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/cool-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/how-to-get-2021-robux-for-free_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-today-glitch_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-minecraft-java-edition-codes_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/hack-avatar_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-rare-cards-for-coin-master-christmas_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-free-spins-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-group-payouts_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-spins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/hackear-coin-master-android_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-get-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/minecraft-java-code-free_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/roblox-rewards-site_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-spins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/easypoints-gg-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005131.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5131 27908 bytes
SHA-256: 3c294673438ee5598a73d61d872daee537fe7bc43f464b7db73568f4f27a7990
font_01_sfnt_off00008f6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F6D 2840 bytes
SHA-256: 30dce2b9c1950da345d7fed8f00c38887adfa2f2ddecc31775af2315e819ac37
font_02_sfnt_off00009920.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9920 18044 bytes
SHA-256: a7eb4611cc5e19625cbf9eb325c611c19de71162a0200f7ffd184f09f4ce8017

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