Malicious PDF — malware analysis report

Static analysis result for SHA-256 95dd29383d0bdb9d…

MALICIOUS

PDF

45.2 KB Created: 2021-06-08 14:54:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 4789be1745c3322634a5bef2ffdfd35d SHA-1: 1594efa912ac3ed9a79a1082dab2a0037fb91f50 SHA-256: 95dd29383d0bdb9d1f51b01f2b1be44269df45d86812eff04a5c5c9e6f8de5e2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure for a game hack generator, which redirects to a known malicious infrastructure. The embedded URL and the document's structure strongly suggest a phishing or malware distribution attempt. No scripts were extracted, but the PDF's nature points towards exploitation or redirection to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.tw/app/431946152/hack-roblox-jailbreak-2021-noclip-game-hack In PDF document text
    • http://technologicalsc.com/images/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/minecraft-bedrock-download_GM479516143.pdfIn PDF document text
    • http://technologicalsc.com/images/wahoo-com-free-robux_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/roblox-shinobi-life-hack-2021_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/free-vip-server-roblox_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/wurst-client-112-2_GM479516143.pdfIn PDF document text
    • http://technologicalsc.com/images/tiktok-free-or-not_GM835599320.pdfIn PDF document text
    • http://technologicalsc.com/images/coin-master-spins-gratis_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/roblox-com-free-play_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/get-robux-com_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/coin-master-70-spin-link-today_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/coin-master-game-for-pc-free-download_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/coin-master-hack-tuts_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/free-minecraft-for-kids_GM479516143.pdfIn PDF document text
    • http://technologicalsc.com/images/descargar-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/free-robux-that-actually-works-2021_GM431946152.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_004_off000050b6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50B6 25560 bytes
SHA-256: dec92f133d1f715ba5d2a5c01bd058a529e8a657c7d1126b208d96eed1c118f4
font_01_sfnt_off00008b7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B7F 19048 bytes
SHA-256: 684dd7fbb7f3f94314b0774c74be6e90c28a728fbf56856dc0d2546927b39463

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