Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0487d99515f651b…

MALICIOUS

PDF

45.4 KB Created: 2021-05-14 03:03:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 0d6a8d7aa1652dbbeb5845caf334fd02 SHA-1: 13e3a7023e909fc719ebf85a40c8f3e9f01071aa SHA-256: a0487d99515f651bfe08582b33efc07026d3350b597f88c1d5ffee765054a112
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by an ML classifier. It uses a remote-support lure. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

Heuristics 5

  • 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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 https://netcdn.xyz/app/479516143/how-to-get-minecraft-for-free-on-your-phone-game-hack PDF link annotation
    • http://techmobil.pl/images/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://techmobil.pl/images/free-robux-games_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/free-minecraft-com_GM479516143.pdfIn PDF document text
    • http://techmobil.pl/images/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdfIn PDF document text
    • http://techmobil.pl/images/free-robux-glitch_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/coin-master-free-spins-today-new_GM406889139.pdfIn PDF document text
    • http://techmobil.pl/images/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://techmobil.pl/images/coin-master-hack-using-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://techmobil.pl/images/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/minecraft-116-apk-download_GM479516143.pdfIn PDF document text
    • http://techmobil.pl/images/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/www-free-robux_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/coin-master-free-spin-today_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_off00004bca.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BCA 24808 bytes
SHA-256: 8db22e793f13095f91bdd79996a22f5d38e703b37060df74ed2d439e220a25fa
font_01_sfnt_off000084b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84B5 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00008e9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E9F 18496 bytes
SHA-256: a36f50ea2d09675143944b60fdaae9345738f73e00ad1d813ff05f96823f5dd3

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