Malicious PDF — malware analysis report

Static analysis result for SHA-256 f710dd364ad91da5…

MALICIOUS

PDF

44.8 KB Created: 2021-05-11 08:02:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: d505262fed221ca5b64ed82591788eee SHA-1: e92bc158e39a2edb916ef372778ad5b5313e15a0 SHA-256: f710dd364ad91da5471907525590b6b573accf656a0f9100f1a33655b51dc20f
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 0.9980

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-free-spins-link-blogspot-today-game-hack PDF link annotation
    • https://cfla.gov.lv/userfiles/files/coin-master-unlimited-spin-hack-apk_GM406889139.pdfIn PDF document text
    • https://cfla.gov.lv/userfiles/files/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://cfla.gov.lv/userfiles/files/coin-master-hack-spins-2021_GM406889139.pdfIn PDF document text
    • https://cfla.gov.lv/userfiles/files/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • https://cfla.gov.lv/userfiles/files/coin-master-3533-android-hack_GM406889139.pdfIn PDF document text
    • https://cfla.gov.lv/userfiles/files/kachifpro_GM406889139.pdfIn PDF document text
    • https://cfla.gov.lv/userfiles/files/robux-free-2021_GM431946152.pdfIn PDF document text
    • https://cfla.gov.lv/userfiles/files/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://cfla.gov.lv/userfiles/files/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://cfla.gov.lv/userfiles/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://cfla.gov.lv/userfiles/files/send-me-500-2021-spins_GM406889139.pdfIn PDF document text
    • https://cfla.gov.lv/userfiles/files/teach-me-to-hack_GM431946152.pdfIn PDF document text
    • https://cfla.gov.lv/userfiles/files/how-to-get-free-items-on-roblox_GM431946152.pdfIn PDF document text
    • https://cfla.gov.lv/userfiles/files/june-29-coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://cfla.gov.lv/userfiles/files/minecraft-free-no-virus_GM479516143.pdfIn PDF document text
    • https://cfla.gov.lv/userfiles/files/do-robux-generators-work_GM431946152.pdfIn PDF document text
    • https://cfla.gov.lv/userfiles/files/20210-free-spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • https://cfla.gov.lv/userfiles/files/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://cfla.gov.lv/userfiles/files/minecraft-noob-vs-pro-vs-hacker_GM479516143.pdfIn PDF document text
    • https://cfla.gov.lv/userfiles/files/free-robux-no-verification-needed_GM431946152.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_003_off00004cad.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CAD 29556 bytes
SHA-256: bc0bb412190b93082171533bb94830b6af2498ffd5c596597a61adb25eda809b
font_01_sfnt_off00008aad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AAD 18988 bytes
SHA-256: 2b06b552feb9fdd10e7730fb6ea803097d4340a2e9acfe2d77736b6ed3bd8bee

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