Malicious PDF — malware analysis report

Static analysis result for SHA-256 73c2c12364d151a7…

MALICIOUS

PDF

35.2 KB Created: 2021-07-05 19:51:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-07
MD5: b176a39c31c24a5d64011a40653d39bd SHA-1: 8d1d14795a05db3775f19f2e181439b0f7d2e5b0 SHA-256: 73c2c12364d151a7f5c40e2bb2474c3167f2533ffb47895affd2c1e7874b719d
160 Risk Score

Malware Insights

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

The PDF document contains multiple links that redirect to websites offering game hacks and free spins, a common lure for phishing and malware distribution. The heuristic firings indicate these links point to known malicious redirector infrastructure. Although no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lures suggest a potential for JavaScript execution or further payload delivery.

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-free-400-spin-link-game-hack In PDF document text
    • http://pspmrsmbpj.com/opac/repository/coin-master-game-free-spin_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/hiw-ti-hack-a-roblox-account_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/best-site-for-free-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/free-robux-safe_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/free-robux-without-sever_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/how-to-hack-robux-javascript-pastebin_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/roblox-exploit-free-download_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/coin-master-332-apk-free-download_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/games-that-give-out-free-robux_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/daily-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/coin-master-time-hack-ios_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/oneapprewards-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/how-to-cheat-in-lumber-tycoon-2-roblox-axes_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/download-roblox-hack-filesblue_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/shark-bite-hacks-roblox-script_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_002_off000032a9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32A9 22832 bytes
SHA-256: 33ab18d910d3ed673f75c2195c1a8ab87513f3e7ad32708c6644f737b903c342
font_01_sfnt_off000065e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65E7 18576 bytes
SHA-256: 03cfcee3629fde15fc54ef21dd04dbc20dfbd27d31ac9ca7d4de5a8c615e5409

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