Malicious PDF — malware analysis report

Static analysis result for SHA-256 e07c563d489ae1ec…

MALICIOUS

PDF

44.8 KB Created: 2021-05-20 01:45:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 61b6758d0cbe4881a41a7c0d2ac0434f SHA-1: 1cc4453d16fc3d525ae221cb61d792863e27a7f2 SHA-256: e07c563d489ae1ec92780f31466c52fdcd713b6782dd30dcaaa8493744896493
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 0.9632

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-card-hack-game-hack PDF link annotation
    • http://aviaprofsoyuz.info/images/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/http-appsmob-info-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/free-rare-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/free-roblox-toy-codes-not-used_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/coin-master-hack-2021-app-download_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/buxblast-com-robux_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/coin-master-hack-version-33-2_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/free-coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/how-to-get-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/free-roblox-accounts-that-work_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/wwwcoin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/2021-no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/coin-master-hack-apk-35-13_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/hack-for-pubg-uc_GM1330123889.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/coin-master-free-spins-link-2021-no-verification_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/roblox-free-hair-boy_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/minecraft-xbox-one-code-free_GM479516143.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/roblox-free-play_GM431946152.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_003_off000049c9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49C9 25256 bytes
SHA-256: 1ab7e06a6e45e1ce111604df655d1fbb58024807b9efe2fc33f1c38130dfd708
font_01_sfnt_off00008365.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8365 3000 bytes
SHA-256: 56ee3cf210babcab1d595ec3cc7d666f7a646b8ea00ab1e6563ebd84f84582f8
font_02_sfnt_off00008dc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DC5 17888 bytes
SHA-256: 5efdab5adc2480a04776318c37b62879fa5095bdd48049ba40adaf7a695a074d

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