Malicious PDF — malware analysis report

Static analysis result for SHA-256 f45a6ae4d097804a…

MALICIOUS

PDF

33.0 KB Created: 2021-07-09 08:35:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: cc9009d8fc36093e0123435f4724302e SHA-1: 9b1ad4f28b7d296e6b1133d28667ed4122af0525 SHA-256: f45a6ae4d097804a6cbe8d68e6c1fbfebf19c251e82b62d070936dbfdf7836eb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains links that redirect to malicious infrastructure, specifically promoting 'game hacks' and free in-game currency. The ML classifier strongly indicated maliciousness, and the embedded URLs are associated with known malicious redirectors. The document body and extracted URLs suggest a lure for users seeking cheats or free items for popular games, which is a common social engineering tactic.

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/479516143/mcpe-hacks-game-hack In PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/free-spins-coin-master-2021-today_GM406889139.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/roblox-how-to-get-free-ninja-animation_GM431946152.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/how-to-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/free-robux-real-working_GM431946152.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/download-coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/free-tiktok-accounts-with-2021-fans_GM835599320.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/roblox-using-free-models_GM431946152.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/free-tiktok-like_GM835599320.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/robux-online_GM431946152.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/rbx-free-robux_GM431946152.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/roblox-how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/how-to-get-free-robux-on-a-computer_GM431946152.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/hack-script-for-one-piece-legendary-roblox-copy-and-paste_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
font_00_sfnt_off00002f9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F9E 21744 bytes
SHA-256: f491ed0f3169058b6d45efa6020f95f1cfdb0f674e735c019d73eadcbba9c124
font_01_sfnt_off00005f3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F3E 17980 bytes
SHA-256: 294d9b4c7acc2ad22185fe7957ebfcfb7d1654808401b79fd4758a1c664e5b17

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