Malicious PDF — malware analysis report

Static analysis result for SHA-256 dabcb68bbf073284…

MALICIOUS

PDF

34.2 KB Created: 2021-07-04 08:03:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 034be1777616f8a4ee1b9b5643a68899 SHA-1: 82ef1f2321e762aa8045155b3e12e40c7b168c04 SHA-256: dabcb68bbf0732847caaec56a6a1ca322d1207d7db9aeb841c0396f1440805e9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains multiple links to known malicious redirectors and sites offering game hacks, such as 'coin-master-hack-apk-download-game-hack'. The document body and embedded URLs strongly suggest a lure for users seeking cheats or exploits, which is a common social engineering tactic. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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-apk-download-game-hack In PDF document text
    • https://goodtools.tw/upload/files/roblox-da-hood-hack-or-glitch_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/wall-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/master-coin-hack_GM406889139.pdfIn PDF document text
    • https://goodtools.tw/upload/files/free-roblox-locked-accounts-with-obc-2021_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/free-minecraft-codes_GM479516143.pdfIn PDF document text
    • https://goodtools.tw/upload/files/hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/how-to-get-robux-without-paying-or-hacking_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/how-to-get-100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://goodtools.tw/upload/files/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/roblox-cheats-for-robux-and-tix-no-survey_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/free-shirt-templates-roblox-lyon_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/op-wii-roblox-cheat_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/how-to-get-free-stuff-from-roblox-whith-no-hack_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/unlimited-robux_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/roblox-place-copy-hack_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/coin-master-unlimited-spin-and-coin-hack_GM406889139.pdfIn PDF document text
    • https://www.urcouponsdeal.com/2019/03/coin-master-free-spin-and-coin-links.htmlIn 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
font_00_sfnt_off00002fcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FCD 22292 bytes
SHA-256: cd6e6c74dd82487b02c830fb3ec7f4ca0211fc2ad35d4a4a14771855634265d7
font_01_sfnt_off00006142.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6142 18760 bytes
SHA-256: e0717da7bc261f17ea8f419e12a90ec9f2f0bf974bdb9909681cf6939735c129

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