Malicious PDF — malware analysis report

Static analysis result for SHA-256 394e16855b74584a…

MALICIOUS

PDF

43.0 KB Created: 2021-05-16 20:11:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 1ce67faf538e10a39639a3797f64a96c SHA-1: ab05d22cc1b8db67b7b7d4b65014f708e59fbc0a SHA-256: 394e16855b74584a2946f20c28158c6884d50d566a7da14c3a20d54c30f23b6c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to free game currency and hacks, directing users to malicious websites. The embedded links and the primary URL identified are associated with known malicious redirector infrastructure. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a malicious redirector workflow designed to entice users into clicking on links that lead to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/431946152/rblx-city-free-robux-game-hack In PDF document text
    • http://halitbayramoglu.com.tr/images/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/get-free-food-in-coin-master_GM406889139.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/coin-master-villages_GM406889139.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/coin-master-shield-hack_GM406889139.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/was-minecraft-ever-free_GM479516143.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/hack-roblox-players_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/minecraft-java-edition-code-free_GM479516143.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/how-to-get-free-spins-on-coin-master-2021-links_GM406889139.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/free-robux-reddit_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/toolbox-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/how-to-make-your-own-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/card-hack-in-coin-master_GM406889139.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/coin-master-free-coins-and-spins-link-today_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
font_00_sfnt_off00004845.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4845 27368 bytes
SHA-256: 8d8e1a0d3a369ab8ec5e0fe384df04dd67a64a37ddc03cad72f007a34dd958c8
font_01_sfnt_off0000852d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x852D 18492 bytes
SHA-256: 8c36c54b235ee774b4288e3a660071bec0b4f54d4ae0ca28de0be66b92090129