Malicious PDF — malware analysis report

Static analysis result for SHA-256 e01cb700c87f4b94…

MALICIOUS

PDF

44.0 KB Created: 2021-05-10 21:01:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: bcc74c033c5f0e66af0113da4ad69348 SHA-1: 4fecf5ef15bac7ba0d56972e51319428c8be50f8 SHA-256: e01cb700c87f4b948a330298f55943b6f15c9248bb574e72ee913c5be6cc757a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to a malicious site offering a 'free Robux generator' and 'game hack', disguised as a download. The document body and heuristics indicate a lure for potentially unwanted or malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a common pattern for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

Heuristics 4

  • 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.
  • 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/431946152/free-robux-generator-no-verification-game-hack In PDF document text
    • https://transjawatravel.com/ckfinder/userfiles/files/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • https://transjawatravel.com/ckfinder/userfiles/files/free-robux-groups-2021_GM431946152.pdfIn PDF document text
    • https://transjawatravel.com/ckfinder/userfiles/files/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • https://transjawatravel.com/ckfinder/userfiles/files/coin-master-game-free-spin_GM406889139.pdfIn PDF document text
    • https://transjawatravel.com/ckfinder/userfiles/files/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • https://transjawatravel.com/ckfinder/userfiles/files/coin-master-32-hack-apk-download_GM406889139.pdfIn PDF document text
    • https://transjawatravel.com/ckfinder/userfiles/files/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • https://transjawatravel.com/ckfinder/userfiles/files/daily-free-spins-coin-master-heaven_GM406889139.pdfIn PDF document text
    • https://transjawatravel.com/ckfinder/userfiles/files/free-spins-in-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • https://transjawatravel.com/ckfinder/userfiles/files/minecraft-java-hacks_GM479516143.pdfIn PDF document text
    • https://transjawatravel.com/ckfinder/userfiles/files/minecraft-aimbot_GM479516143.pdfIn PDF document text
    • https://transjawatravel.com/ckfinder/userfiles/files/minecraft-windows-10-edition-hacks_GM479516143.pdfIn PDF document text
    • https://transjawatravel.com/ckfinder/userfiles/files/how-to-get-free-coins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://transjawatravel.com/ckfinder/userfiles/files/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • https://transjawatravel.com/ckfinder/userfiles/files/free-robux-no-email_GM431946152.pdfIn PDF document text
    • https://transjawatravel.com/ckfinder/userfiles/files/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://transjawatravel.com/ckfinder/userfiles/files/coin-master-daily-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
    • https://transjawatravel.com/ckfinder/userfiles/files/coinmaster-rewards_GM406889139.pdfIn PDF document text
    • https://transjawatravel.com/ckfinder/userfiles/files/roblox-hack-me_GM431946152.pdfIn PDF document text
    • https://transjawatravel.com/ckfinder/userfiles/files/coin-master-hack-that-actually-works_GM406889139.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
stream_003_off000047cf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47CF 23868 bytes
SHA-256: 15e0fcea595adf275d24bc17a2abba0bc26244e5e27efdf1f8a9b1d4f7431d0b
font_01_sfnt_off00007e43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E43 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off0000882d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x882D 18600 bytes
SHA-256: fd611ad94f1c5362e5936d61a0ca6686a852f181e3b69dadbb107f1a26b259f7

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