Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccf6321a8701eba0…

MALICIOUS

PDF

35.0 KB Created: 2021-07-04 08:34:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 17b0f6be185c9ceaa97fe51a3975687a SHA-1: 1d29d863db0c1cf46c70810b7d03435253b006b0 SHA-256: ccf6321a8701eba0eb2892236ba32626f11ace28a788543f42d639db6624ce69
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. 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 0.9980

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.tw/app/406889139/coin-master-hacks-to-get-spins-game-hack PDF link annotation
    • https://library.sman1berau.sch.id/repository/hacked-version-of-roblox-case-clicker_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-coins-coin-master-ios_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-car-free_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-get-free-roblox-hair_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/is-windows-10-minecraft-free_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-dungeon-quest-money-hack_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-hack-cheat-generator-d_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/get-free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-clean-hacks-xyz_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coinmaster_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/is-free-robux-real_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-robux-page_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-hack-apk-2021-ios_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-get-free-coins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-pc-hack-tool_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-hacked-version-download_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_off000030f4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30F4 23608 bytes
SHA-256: a7178243a1b922930d69f6aee8895849f87532f00c336162d2b31620a54d3eed
font_01_sfnt_off00006687.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6687 18180 bytes
SHA-256: 9341c07bf1f8ec385911b2e687c8b56254d6f249b14268b148005ae7d066e883

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