Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ec486e473a24c6f…

MALICIOUS

PDF

42.0 KB Created: 2021-05-15 23:33:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 48120de5068543831e6daa998e13deb3 SHA-1: 6c51545d96bf7e069299fbf824cb1f53dd67eaed SHA-256: 3ec486e473a24c6fa37d0b316a26ed09191b0b9d1d4140ed529955146d9746ba
208 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as "free generators" or "game hacks" for popular games. The document body, though partially corrupted, contains references to these lures and embedded URLs. The primary malicious action observed is the redirection to external malicious infrastructure, likely to download further payloads or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 6

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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 https://netcdn.xyz/app/479516143/minecraft-tower-defense-hacked-game-hack In PDF document text
    • https://goonscience.com/images/avatar-roblox-game_GM431946152.pdfIn PDF document text
    • https://goonscience.com/images/roblox-adopt-me-free-pets_GM431946152.pdfIn PDF document text
    • https://goonscience.com/images/minecraft-free-edition_GM479516143.pdfIn PDF document text
    • https://goonscience.com/images/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • https://goonscience.com/images/tryrbx-site-free-robux_GM431946152.pdfIn PDF document text
    • https://goonscience.com/images/how-to-get-a-free-dominus-in-roblox_GM431946152.pdfIn PDF document text
    • https://goonscience.com/images/minecraft-login-free_GM479516143.pdfIn PDF document text
    • https://goonscience.com/images/coin-master-hack-spins-game-download_GM406889139.pdfIn PDF document text
    • https://goonscience.com/images/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://goonscience.com/images/coin-master-hacks_GM406889139.pdfIn PDF document text
    • https://goonscience.com/images/coinmaster-spin-ml_GM406889139.pdfIn PDF document text
    • https://goonscience.com/images/watch-videos-for-robux_GM431946152.pdfIn PDF document text
    • https://goonscience.com/images/roblox-dominus-free_GM431946152.pdfIn PDF document text
    • https://goonscience.com/images/coin-master-hack-no-survey-or-verification_GM406889139.pdfIn PDF document text
    • https://goonscience.com/images/free-robux-gen_GM431946152.pdfIn PDF document text
    • https://goonscience.com/images/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • https://goonscience.com/images/coin-master-heaven-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://goonscience.com/images/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://goonscience.com/images/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://goonscience.com/images/free-robux-just-click_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_off0000498d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x498D 24492 bytes
SHA-256: 6795adf1a7757e4ad6430b6cd689565751ba28f0406417648987d2a5e8a85986
font_01_sfnt_off000081ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81AC 18388 bytes
SHA-256: 713945c209eafdfb17d9348275aac2514e7231b3ac112b5af91dabd48964bc5b

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