Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6061538d4de304c…

MALICIOUS

PDF

38.0 KB Created: 2021-07-05 14:54:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 58095d1c509ae0e00883f8178cf82108 SHA-1: d218c7cb57c07a833834813a5b1227645951ec09 SHA-256: d6061538d4de304c1d70608404cf3152490e0f63a0195636fd4ffb833cedf960
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 0.9886

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-hack-online-generator-game-hack PDF link annotation
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/roblox-free-obc-thumbnail_GM431946152.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/free-robux-online-hack_GM431946152.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/roblox-creepy-elevator-hack-script_GM431946152.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/roblox-personal-server-hack_GM431946152.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/minecraft-realms-free-codes_GM479516143.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/how-to-get-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/hacker-roblox-robux-tuto_GM431946152.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/roblox-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/roblox-download-free-ios_GM431946152.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/coin-master-apk-mod_GM406889139.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/roblox-hack-no-human-verification-2021-android_GM431946152.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/coin-master-spins-for-free_GM406889139.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/free-robux-hack-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/roblox-cheats-2021-skywars_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_002_off00003448.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3448 23124 bytes
SHA-256: 483c253042a386973afbf8e23ed703f15455be529dc3716e2ec89ef9fc1f3e04
font_01_sfnt_off0000684c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x684C 2896 bytes
SHA-256: c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd
font_02_sfnt_off00007231.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7231 18080 bytes
SHA-256: e55d1a2f0f041c55a991468c0032cf052e550fbb2d425cc59def2f9f0cd39345

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