Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc967e56809b95ca…

MALICIOUS

PDF

35.9 KB Created: 2021-06-29 02:29:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 76e8b02a9e8281901195ab2f5de53047 SHA-1: e54132550cbb13a301bc24eba493725a1f5b88bf SHA-256: fc967e56809b95ca3a52d26f67a17aec23e3b366bfbe33d28927a86b9150ea13
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector, disguised as 'game hacks' and 'free currency' generators. The primary lure is the URL http://netcdn.co/app/431946152/how-to-hack-money-in-roblox-tycoons-game-hack, which is associated with malicious redirector infrastructure. The document body and embedded URLs reinforce this lure, aiming to trick users into clicking through to potentially malicious sites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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/how-to-hack-money-in-roblox-tycoons-game-hack In PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/free-robux-place_GM431946152.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/download-pokemon-go-free_GM1094591345.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/roblox-free-t-shirt-upload_GM431946152.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/coin-master-hack-link_GM406889139.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/how-to-get-free-pets-in-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/aternos-free-minecraft-server_GM479516143.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/hack-master-coin_GM406889139.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/coin-master-hack-app-android-download_GM406889139.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/coin-master-hack-quora_GM406889139.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/free-spin-link_GM406889139.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/abd-roblox_GM431946152.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/easy-robux-hack_GM431946152.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/get-free-lives-on-coin-master_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000033ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33AC 22716 bytes
SHA-256: 3e5bc1e4b1a18700a60cc07a97e8bc2be5595839731281c57f51cec458b87652
font_01_sfnt_off000066bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66BF 19196 bytes
SHA-256: ec83ebcaeeaa910d43b04523200f4e7c1f00c9f10f9fa9d0141882cd881c419b

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