Malicious PDF — malware analysis report

Static analysis result for SHA-256 afabdc7c8a13b0fb…

MALICIOUS

PDF

48.2 KB Created: 2021-05-14 12:49:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 24152985d4a381ad673ae6e3b7e945c4 SHA-1: ded517965c0afb8b3cb55042bf6a1b09553dd404 SHA-256: afabdc7c8a13b0fb150927a313b65ff380c37c4e3aa00f90a22f52fbca4d80f6
200 Risk Score

Malware Insights

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

The PDF document contains multiple links to known malicious redirectors and lures users with promises of free game hacks. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting potentially harmful sites. The heuristic firings indicate the PDF is designed to redirect users to malicious infrastructure, likely to download further malware or exploit vulnerabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8715

Heuristics 5

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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/479516143/are-minecraft-realms-free-game-hack In PDF document text
    • http://www.popikalogirou-realestate.gr/images/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/coin-master-sound-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/free-roblox-app_GM431946152.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/coin-master-apk_GM406889139.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/hack-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/coin-master-free-spins-link-today-hack_GM406889139.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/how-to-get-real-robux_GM431946152.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/coin-master-cracked-apk-free-download_GM406889139.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/coin-master-heaven-free-spins-link_GM406889139.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/coin-master-34-6-hack_GM406889139.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/rbx-robux_GM431946152.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004beb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BEB 25732 bytes
SHA-256: 807d614e8aa424d291181ca438cb08af7a9ca6da101c8eb86ad4fbc7ba381eb4
font_01_sfnt_off000086bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86BC 3020 bytes
SHA-256: f1a29adcea636583330be8db4f6466410de551ac48576b9e1aa5c34e2d665a1f
font_02_sfnt_off00009110.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9110 2816 bytes
SHA-256: 4555740682277f0055d57b15bd0ba953e5b51415ea3d21c93db391eace072d4f
font_03_sfnt_off00009b20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B20 17900 bytes
SHA-256: 8eb15ed8310af5fb76432a47ac68b1e7755fcf2aff13e182d9ea68cdb87c7182

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