Malicious PDF — malware analysis report

Static analysis result for SHA-256 1329d33a94e6d1ba…

MALICIOUS

PDF

44.9 KB Created: 2021-05-13 08:09:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 91149b14c1138d821775dd9ae487ebe3 SHA-1: 92b4a54c3d58ddefd32e582dba97fc51465c994b SHA-256: 1329d33a94e6d1ba40ed44af735d1e48c11647d2630e49a019f826b1a83e867d
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses a callback-phone (TOAD) lure. 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 5

  • 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.
  • 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/479516143/minecraft-sign-up-free-game-hack PDF link annotation
    • https://jdlgroup.ca/images/coin-master-hack-tool-without-human-verification_GM406889139.pdfIn PDF document text
    • https://jdlgroup.ca/images/how-to-get-a-lot-of-robux_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/free-coins-for-flip-master_GM406889139.pdfIn PDF document text
    • https://jdlgroup.ca/images/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/roblox-com-r_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/coin-master-hack-blogspot_GM406889139.pdfIn PDF document text
    • https://jdlgroup.ca/images/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/free-robux-download_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/robux-generator-no-verification-needed_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://jdlgroup.ca/images/daily-coin-master-free_GM406889139.pdfIn PDF document text
    • https://jdlgroup.ca/images/how-to-get-minecraft-for-free-on-tablet_GM479516143.pdfIn PDF document text
    • https://jdlgroup.ca/images/inappropriate-roblox-games-2021_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/coin-master-hack-version_GM406889139.pdfIn PDF document text
    • https://jdlgroup.ca/images/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/roblox-e-free_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/hack-xp-net-coin-master_GM406889139.pdfIn PDF document text
    • https://jdlgroup.ca/images/how-do-u-get-free-robux-2021_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A94 24704 bytes
SHA-256: ef7170f34e7d652659bb7a122b4d75894f29cca26a00190607163eebb5a91100
font_01_sfnt_off00008346.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8346 2912 bytes
SHA-256: 02b35010e2614e3cc95ac6414c49295350c91fdfcc4b4cad27ffdbc10e80df7f
font_02_sfnt_off00008d43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D43 18220 bytes
SHA-256: 6236314a17f57ecfc4f63da4a6b9cb2d9143cd94f6dcae1b1ce204d4da3deb21

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