Malicious PDF — malware analysis report

Static analysis result for SHA-256 0abfd1efa76ab738…

MALICIOUS

PDF

34.5 KB Created: 2021-06-26 13:23:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 9a5f876296c5bb6badf5e4301383cb3f SHA-1: a75fc13fbd5c807281427b014934a1f1a547e5cf SHA-256: 0abfd1efa76ab7384166f0f77ba1f79d74d89ab18e92f0869313858979594b1e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of offering free in-game currency or hacks for popular games like Roblox and Coin Master. It contains an embedded URI that redirects to a malicious URL, likely serving as a gateway to a phishing or malware download site. The ML classifier strongly indicated maliciousness, and the overall structure suggests a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.
  • 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 http://netcdn.co/app/431946152/things-that-are-free-on-roblox-game-hack PDF link annotation
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/roblox-www-com_GM431946152.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/coin-master-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/coin-master-rewards-app_GM406889139.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/roblox-robux-page_GM431946152.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/free-roblox-generator-for-roblox_GM431946152.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/jailbreak-script_GM431946152.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/free-catalog-items-roblox-2021_GM431946152.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/cool-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/how-to-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/coin-master-fan-page_GM406889139.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/coinmasterfreespinlink_GM406889139.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/free-tiktok-followers-generator-no-human-verification_GM835599320.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/minecraft-free-download-linux_GM479516143.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/free-robux-just-click_GM431946152.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/show-me-a-video-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/free-robux-thumbnail_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 3

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_off0000306d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x306D 22404 bytes
SHA-256: 0e03a10d0f70b5bb83b7a9dd3b5e76dc72ef6c2c7a158afc62af494f0472a1e8
font_01_sfnt_off0000620e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x620E 19040 bytes
SHA-256: 0acb7fe7f56aa13a88c62efeda5566ff5be8bf9530333eaf0caaa79e1b05f073

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