Malicious PDF — malware analysis report

Static analysis result for SHA-256 e265df711c488eec…

MALICIOUS

PDF

34.7 KB Created: 2021-07-07 09:31:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 8b275825d2fb3ab8a5ffdc93266de3c7 SHA-1: 3cbb067b1dd67afedc3298c78ee2f67096bd62e8 SHA-256: e265df711c488eec46fb1b8bc8b7ee09a85630ffa970ca57b2952bbfc14b6a00
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-free-spins-1-coin-master-game-hack PDF link annotation
    • http://new.man2boyolali.sch.id/__statics/gudangsoal/files/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://new.man2boyolali.sch.id/__statics/gudangsoal/files/coin-master-hack-free-spins_GM406889139.pdfIn PDF document text
    • http://new.man2boyolali.sch.id/__statics/gudangsoal/files/coin-master-cards-for-free_GM406889139.pdfIn PDF document text
    • http://new.man2boyolali.sch.id/__statics/gudangsoal/files/roblox-blood-t-shirt-free_GM431946152.pdfIn PDF document text
    • http://new.man2boyolali.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master-2021-iphone_GM406889139.pdfIn PDF document text
    • http://new.man2boyolali.sch.id/__statics/gudangsoal/files/free-minecraft-pe-server_GM479516143.pdfIn PDF document text
    • http://new.man2boyolali.sch.id/__statics/gudangsoal/files/free-robux-apk_GM431946152.pdfIn PDF document text
    • http://new.man2boyolali.sch.id/__statics/gudangsoal/files/roblox-prison-life-exploits-free-easy_GM431946152.pdfIn PDF document text
    • http://new.man2boyolali.sch.id/__statics/gudangsoal/files/free-robuxfr_GM431946152.pdfIn PDF document text
    • http://new.man2boyolali.sch.id/__statics/gudangsoal/files/hacking-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • http://new.man2boyolali.sch.id/__statics/gudangsoal/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://new.man2boyolali.sch.id/__statics/gudangsoal/files/free-tiktok-views_GM835599320.pdfIn PDF document text
    • http://new.man2boyolali.sch.id/__statics/gudangsoal/files/free-robux-thumbnail_GM431946152.pdfIn PDF document text
    • http://new.man2boyolali.sch.id/__statics/gudangsoal/files/minecraft-pe-apk-download-free-015-0_GM479516143.pdfIn PDF document text
    • http://new.man2boyolali.sch.id/__statics/gudangsoal/files/coin-master-apk-hack-2021_GM406889139.pdfIn PDF document text
    • http://new.man2boyolali.sch.id/__statics/gudangsoal/files/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://new.man2boyolali.sch.id/__statics/gudangsoal/files/roblox-jailbreak-hack-noclip-zip-file_GM431946152.pdfIn PDF document text
    • http://new.man2boyolali.sch.id/__statics/gudangsoal/files/coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://new.man2boyolali.sch.id/__statics/gudangsoal/files/roblox-hack-bypass-2021_GM431946152.pdfIn PDF document text
    • http://new.man2boyolali.sch.id/__statics/gudangsoal/files/minecraft-net-download-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003134.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3134 22924 bytes
SHA-256: fa41c1fb7cf9e6672b1ea8bf06f822d658173b86a17137bea7bcc716916c4e5b
font_01_sfnt_off000064d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D7 18280 bytes
SHA-256: c6e059c9ed721b3913b3564b37d12693d805a011019115ba3458bc9a4db4920e

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