PDF static analysis report

Static analysis result for SHA-256 bdf690daf4d07fb7…

SUSPICIOUS

PDF

48.6 KB Created: 2021-06-09 11:50:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 558e36c469770468d64e7c2b87db3566 SHA-1: 35bbb28bcdbbb3e91584439f97d4e4d489625e3c SHA-256: bdf690daf4d07fb7f380f6b262eb76fd474c638ee54294d86f0d84a7d6979401
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded URLs and document body text that explicitly mention game cheats and hacks, such as 'money cheats for roblox' and 'free robux'. The presence of external URIs and a high ML classifier score indicate malicious intent. The document likely serves as a lure to download a second-stage payload from the identified URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 3

  • 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.tw/app/431946152/money-cheats-for-roblox-vehicle-simulator-game-hack PDF link annotation
    • http://zercalo.org/images/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/free-robux-gen_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/oprewards-com-robux_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/minecraft-free-app_GM479516143.pdfIn PDF document text
    • http://zercalo.org/images/hack-the-coin-master-game_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/roblox-trolling_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/how-to-hack-into-coeptus-roblox_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/roblox-printables-free_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/free-minecraft-games-for-kids_GM479516143.pdfIn PDF document text
    • http://zercalo.org/images/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/pokemon-go-free-864_GM1094591345.pdfIn PDF document text
    • http://zercalo.org/images/free-tiktok-fans-no-human-verification-ios_GM835599320.pdfIn PDF document text
    • http://zercalo.org/images/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/todays-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/free-roblox-card_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/can-pokemon-go-free-coins_GM1094591345.pdfIn PDF document text
    • http://zercalo.org/images/roblox-elemental-battlegrounds-hacks-win10-2021_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/roblox-build-a-boat-for-treasure-hack-2021_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004e9d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E9D 25832 bytes
SHA-256: 9a5482346f3fba970ec1bb49c5e89a2b078332792c7fd371a9f064d370c23914
font_01_sfnt_off00008b21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B21 3944 bytes
SHA-256: 081569ec119746cc4db5e65c324be5d90361ff1f928a16f4e5d08db70348f444
font_02_sfnt_off0000980c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x980C 19476 bytes
SHA-256: 68b41cf6964098a6076d8a5bf5dfff9899d7932b97a8fa65b6c40758a7219bf7

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