Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c206658ba46e3c9…

MALICIOUS

PDF

35.3 KB Created: 2021-06-23 05:38:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 0bb5fcc54accc38fa640f3dec8e43a14 SHA-1: 406b78b6c95f5d958e05002d2800e76ed3fa5a26 SHA-256: 3c206658ba46e3c99fb7ddd25493034e4b25a5fad043e71dce909f1c05d33245
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and extracted URLs suggest a lure related to game hacks and in-game currency, aiming to trick users into clicking the malicious link. The ML classifier also flagged this PDF with high confidence, supporting its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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/hack-de-roblox.com-game-hack In PDF document text
    • http://library.yamasi.ac.id//repository/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/how-to-make-a-minecraft-java-server-for-free_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-mod-apk-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-robux-group-payouts_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-spins-for-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/collect-free-spin-linms-coin-master_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/hack-the-coin-master-game_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/hack-master-coin-pc_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/roblox-girl-avatar_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/how-to-play-minecraft-online-for-free_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-anime-girl-patrol-tsundere-red-demo-script-hack_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-catalog-hack-2021_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/pokemon-go-free-clothes-code_GM1094591345.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-free-spin-no-offers_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-redeem-card-codes-free_GM431946152.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
stream_002_off0000345e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x345E 21860 bytes
SHA-256: ddf76ee32446bbf0022ba92fb0d3f0feb33353a3e5014b9c98bf08de45596e3d
font_01_sfnt_off000064a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64A4 19148 bytes
SHA-256: 08f2832e6a887d25dbf1a625cf3bacbe4715b2c6d4e6e0bab8441713c2d99e8d

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