Malicious PDF — malware analysis report

Static analysis result for SHA-256 613a68f583e0ad75…

MALICIOUS

PDF

35.4 KB Created: 2021-06-27 15:24:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: f0dd3ab95d33ee4589bc97a6aa1a36c5 SHA-1: 9a54d1721508bc3a141eb61aa95663211d937a5e SHA-256: 613a68f583e0ad75196571bf324c042297a816196929e9d6e568e100019fa6b0
180 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free Robux and game hacks to entice users. It contains multiple links, including a critical malicious redirector URL, that likely lead to further malicious content or malware downloads. The document's structure and embedded URLs strongly suggest a phishing or scam attempt designed to compromise user accounts or systems.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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) or Microsoft license-boilerplate 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
  • 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 http://netcdn.co/app/431946152/roblox-live-stream-free-robux-game-hack In PDF document text
    • https://fib.ub.ac.id/sac/repository/apps-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/spin-hack-pastebin-roblox_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/magic-training-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/cipherv3-roblox-exploit-rocky-hacks-and-more_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-robux-live_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/rbxnow-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/how-to-get-any-car-free-in-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/robux-money_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/how-to-get-free-robux-2021-no-survey_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/can-you-give-me-robux_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/how-do-you-hack-for-2021000-coins-on-flip-master_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-coin-link-coin-master_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-coin-master-spins-blogger_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-robux-no-verification-or-offers_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
font_00_sfnt_off00003040.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3040 23224 bytes
SHA-256: 3addf667092901db4ab740b2e771488cb720126fdcca0a1cb4e5f69126cb50c8
font_01_sfnt_off00006486.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6486 19388 bytes
SHA-256: 90d82a1efd30a3a08e2d2954f18771b81d89714c2719a65f330dd9658d5c3f89

Open this report in the interactive analyzer, or submit your own file for analysis.