Malicious PDF — malware analysis report

Static analysis result for SHA-256 e31bd733ec32ff41…

MALICIOUS

PDF

33.1 KB Created: 2021-07-07 07:58:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c182801097edd39b945f35321abb0bd8 SHA-1: 1fdfd936c0f0664b321ca2e2f3c7467a45c24a99 SHA-256: e31bd733ec32ff4181c1ec70949c469a562c2c0d9e5db6a621d9b9583789ec27
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document uses a game hacking lure to entice users to click on a malicious link. The link, http://netcdn.tw/app/479516143/how-to-hack-minecraft-pe-game-hack, likely leads to the download of a second-stage payload. The ML classifier strongly indicated maliciousness, and the presence of multiple game-related lures reinforces this assessment.

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/479516143/how-to-hack-minecraft-pe-game-hack PDF link annotation
    • https://mobile.connecttravel.com.tw/image/data/files/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/coin-master-hack-injection_GM406889139.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/coin-master-free-spin-redeem-code_GM406889139.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/facebook-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/coin-master-daily-gifts_GM406889139.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/is-roblox-download-free_GM431946152.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/coin-master-free-spins-2021-app_GM406889139.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/get-free-robux-by-entering-this-birthday_GM431946152.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/roblox-fun-robux_GM431946152.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/oprewards-robux_GM431946152.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/roblox-robux-hack-2021-working-version_GM431946152.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/download-free-roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/roblox-synapse-hack_GM431946152.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/coin-master-attack-block-hack_GM406889139.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/bad-minecraft-free_GM479516143.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/roblox-music-id-break-free_GM431946152.pdfIn PDF document text
    • https://mobile.connecttravel.com.tw/image/data/files/new-free-items-in-roblox-catalog-2021_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
font_00_sfnt_off00002ed6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ED6 21656 bytes
SHA-256: 3e0ed68152cb1645e96b1c91457f9887806121b84d1a4ed3e290840f4b0c8b3e
font_01_sfnt_off00005e01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E01 18488 bytes
SHA-256: 219457e29f33dfec07786a29e70830a20555f796e9e6bb3f533c171663b580ef

Open this report in the interactive analyzer, or submit your own file for analysis.