Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e9928bde9112d2a…

MALICIOUS

PDF

45.6 KB Created: 2021-05-10 22:47:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: c1b65ab3ec4cf437be5d5b7ae3d43f6e SHA-1: f4db30f968cef78496a84ad46fa7ea2d0aefc7f9 SHA-256: 0e9928bde9112d2a514dc5fa05f1dc3417100840baac3789986d5af8ad738fa2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically a site offering 'game hacks'. The heuristic firings indicate the PDF is designed as a lure, likely to trick users into visiting a malicious site. While no scripts were extracted, the presence of embedded URLs and the ML classification strongly suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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.xyz/app/406889139/hacks-and-cheats-for-coin-master-game-hack In PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu/repository/free-robux-site_GM431946152.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu//repository/minecraft-free-online-unblocked_GM479516143.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu/repository/hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu//repository/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu/repository/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu//repository/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu/repository/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu/repository/pop-slots-free-vegas-casino-slot-machine-game-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu/repository/free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu/repository/how-to-make-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu/repository/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu/repository/minecraft-mod-updater_GM479516143.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu//repository/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu//repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu//repository/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu/repository/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu//repository/robux-for-surveys_GM431946152.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu/repository/free-minecraft-survival-server_GM479516143.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu/repository/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu//repository/no-human-verification_GM431946152.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
stream_003_off00004d5a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D5A 25192 bytes
SHA-256: 8604a95d1a2ed027302f80cb51120fcc2801ffd4d7816fb8af0351a16b1956ac
font_01_sfnt_off00008621.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8621 2944 bytes
SHA-256: fcfcd28869b8d6c7503d63ed8d48371ec5b580fea2733193e2acbb82b3d30a76
font_02_sfnt_off0000904b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x904B 18220 bytes
SHA-256: a46c006b512b84888bc8fbab681985973724221ae7a22be5c9063266660da03e

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