Malicious PDF — malware analysis report

Static analysis result for SHA-256 05af89f8399ebdd2…

MALICIOUS

PDF

35.0 KB Created: 2021-06-30 14:04:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 00a09ba85cf1c4ac1f34eac189e5b663 SHA-1: bc1e9caf5ce6b3722ffb6a36f17bed7a2c049fcf SHA-256: 05af89f8399ebdd2812b43ef9c67fa5cd15a1bb6f6db8db602d7b464d83c56af
160 Risk Score

Malware Insights

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

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free generators'. The heuristic firings indicate these links are associated with known malicious redirectors and lures for game-related exploits. While no scripts were directly extracted, the embedded URLs and the nature of the lures suggest an attempt to trick users into downloading or executing further malicious content, likely through a client-side exploit.

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.co/app/431946152/how-do-you-hack-roblox-accounts-2021-game-hack In PDF document text
    • http://lib.fisipumt.ac.id/repository/free-roblox-clothes-and-hair_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/premium-softwares-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/robux-hack-tool-download-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/hacking-warrior-cats-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/game-guardian-roblox-invisible-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/hack-coin-master-for-android_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/mega-roblox-hack-engine_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/hack-icebreaker-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-smoking-free_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-hack-2021-november_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-com-free-draw_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/pokemon-go-free-gift-codes_GM1094591345.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/kachifpro_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E7D 22728 bytes
SHA-256: c2b0c5dfcdcf08035d560d90f1c21283d3c6af86961634abce91664fbd6239b3
font_01_sfnt_off0000610e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x610E 19796 bytes
SHA-256: bbba9e90c4175430560c423a2599f1703ad0d21752a62ae6a9dc8687470da0cb

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