Malicious PDF — malware analysis report

Static analysis result for SHA-256 2914e9fa93b5c4e2…

MALICIOUS

PDF

43.6 KB Created: 2021-05-14 16:40:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 627c37b5e34450e7e1f4ff9c2905627d SHA-1: abda5355b6d99f249029888f5b6af5567632772f SHA-256: 2914e9fa93b5c4e204995049ca82301069f9f81fd55d010282a350dee36afcd6
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 0.9648

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.xyz/app/406889139/play-coin-master-game-hack PDF link annotation
    • http://ggmtc.net/userfiles/files/give-free-robux_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/hack-coin-master-no-survey_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-robux-apk_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-free-spin-27_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-70-spin-link_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/spins-coin-master_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-free-spins-link-blogspot-april-2021_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/scaffold-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-free-download-pc_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/minecraft-free-download-mac-full-version_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/roblox-e-free_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000046cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46CD 25172 bytes
SHA-256: b39e8786bbe8501809b472dcf137a0dcee0b054bf5b42aae0d38c23e428c68ef
font_01_sfnt_off00007e8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E8E 2944 bytes
SHA-256: fcfcd28869b8d6c7503d63ed8d48371ec5b580fea2733193e2acbb82b3d30a76
font_02_sfnt_off000088b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88B8 17956 bytes
SHA-256: 3643e479f0c37cbf16fafc1a8fc3121dcb1ff233e4f2886a877cfbec5145750a

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