Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3a47a78bb22b236…

MALICIOUS

PDF

34.7 KB Created: 2021-06-27 00:28:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 365324d824f299e1444eb889acdd778b SHA-1: 35f6f499b7f3369faf9a49c2c61ec767b09b8e45 SHA-256: e3a47a78bb22b2367a6f1f7ad24a6e0302a2cbcbe59bb326a3bd35f75a67f1f9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that are identified as malicious redirectors, specifically luring users with game hacks and cheats. The primary malicious URL identified is http://netcdn.co/app/431946152/roblox-free-clothes-cheat-2021-game-hack. The document's content and heuristics strongly suggest a phishing or scam attempt designed to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/roblox-free-clothes-cheat-2021-game-hack In PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/roblox-speed-hack-2021_GM431946152.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/roblox-galaxy-arcade-cheats_GM431946152.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/free-coin-master-stuff_GM406889139.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/minecraft-pocket-edition-apk-free-download_GM479516143.pdfIn PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/spin-and-coin_GM406889139.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/roblox-hacked-version_GM431946152.pdfIn PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/pokemon-go-free-to-download_GM1094591345.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/pokemon-go-free-pokecoins-no-human-verification_GM1094591345.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/download-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/get-more-robux_GM431946152.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/adopt-me-roblox-cheat-codes_GM431946152.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/best-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/password-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

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_off00002f1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F1D 22580 bytes
SHA-256: 0abaa7f1ce49bd4c3468087012bd41df363750a36d63e92ec52cf5f0214a8fd2
font_01_sfnt_off00006197.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6197 19320 bytes
SHA-256: b05bf49657a607e704b0de09172344283a1b0c747b3cab4cd0d50d87dc2d67f9

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