Malicious PDF — malware analysis report

Static analysis result for SHA-256 002da7140cf1f46c…

MALICIOUS

PDF

34.3 KB Created: 2021-07-07 23:32:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 05e1182ac7db6ca48f940fce56c77007 SHA-1: 24cced36d69daecf4f2fcef0f2bd2ed7fb5daacc SHA-256: 002da7140cf1f46c45c6fe734b79108d35d5b9dc6339cf92fcf97e7444133797
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector, designed to lure users into downloading potentially unwanted or malicious content. The document body and heuristics indicate a focus on 'game hacks' and 'generators' for popular games, suggesting a phishing or scam attempt. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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-pro-gamers-game-hack In PDF document text
    • http://perpustakaan.urindo.ac.id/repository/free-roblox-generator_GM431946152.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • https://perpustakaan.urindo.ac.id/repository/how-to-hack-roblox-robux-easy_GM431946152.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/wurst-18_GM479516143.pdfIn PDF document text
    • https://perpustakaan.urindo.ac.id/repository/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/coin-master-hack-without-verify_GM406889139.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/coin-master-free-spins-and-coins-app_GM406889139.pdfIn PDF document text
    • https://perpustakaan.urindo.ac.id/repository/medieval-warfare-roblox-cheats_GM431946152.pdfIn PDF document text
    • https://perpustakaan.urindo.ac.id/repository/free-roblox-accessories_GM431946152.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/coin-master-pc-hack-download_GM406889139.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/coin-master-villages_GM406889139.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/pig-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/make-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/collect-free-spin-linms-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.urindo.ac.id/repository/free-spins-for-coin-master-app_GM406889139.pdfIn 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_002_off00002ffa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FFA 22768 bytes
SHA-256: d1fb7af3b84c038d06b0ee3546dc67dbba0989e3c6206eed83e1b381d9ba3e5d
font_01_sfnt_off000062fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62FE 18416 bytes
SHA-256: 42eb204123647df6f85ca188dd99f1d84b9bafa3d0fb5c7709fcc50fb0944608

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