Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2e15f58c3ba3718…

MALICIOUS

PDF

44.5 KB Created: 2021-06-03 06:48:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 3f74cf65eb92b743933a2c663d14a3cc SHA-1: f596b839c040735963092eb7a763f0d6ee1ab104 SHA-256: e2e15f58c3ba371800c71c8fd95fb4fd666bd9042bb82c2fd104e15d3b8ec3eb
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 0.9865

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 https://netcdn.online/app/479516143/how-to-get-minecraft-for-free-on-mac-game-hack PDF link annotation
    • https://mobile.connecttravel.com.tw/image/data/files/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/coin-master-free-spins-link-download-today_GM406889139.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/robux-earning-websites_GM431946152.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/is-minecraft-free_GM479516143.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/roblox-account-hacker-tool_GM431946152.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/coin-master-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/how-to-get-real-robux_GM431946152.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/hack-coin-master-using-pc_GM406889139.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/how-to-free-robux_GM431946152.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/pokemon-go-free-coins-without-human-verification_GM1094591345.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/roblox-free-body_GM431946152.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/robux-xyz_GM431946152.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/coinmaster-spin-ml-link_GM406889139.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • https://youtuIn 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_004_off0000524e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x524E 25300 bytes
SHA-256: dab65d799d1374303f09fb3fce293eefc6055a5be1398719fd1e4ccb1980e21f
font_01_sfnt_off00008cb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CB1 17872 bytes
SHA-256: b6208a51cd80fab2e9318da305006c0e70657a6f065b62408d4ccaae69eb5aa0

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