Malicious PDF — malware analysis report

Static analysis result for SHA-256 65ba9196d3d8adfc…

MALICIOUS

PDF

42.3 KB Created: 2021-05-13 07:06:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 6a964999a0f478685965125adce17bf4 SHA-1: 9d0284cdb2584feff587aa48c8e597c37745dba3 SHA-256: 65ba9196d3d8adfc2c65c9f11aae1b2edd381bade357ca26b67cc270c14507a9
220 Risk Score

Malware Insights

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

This PDF document employs a lure related to game hacks and free resources, directing users to external URLs. The heuristics indicate it links to known malicious redirectors and is part of a link farm, suggesting a tactic to manipulate search engine results or redirect users to potentially harmful content. While no scripts were extracted, the PDF structure itself contains links that are indicative of a malicious workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/coin-master-free-spins-ios-2021-game-hack In PDF document text
    • http://bob-reid-music.com/uploads/files/files/is-coin-master-hacks-safe_GM406889139.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/mangocheats-com-hack-coin-master-cheat_GM406889139.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/minecraft-pocket-edition-apk-free-download_GM479516143.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/coin-master-hack-apk-link_GM406889139.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/wwwcoin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/coinmaster-com_GM406889139.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/daily-coin-master-free-spin-link-facebook_GM406889139.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/coin-master-link-app_GM406889139.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/100-free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/wurst-hacks_GM479516143.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/give-me-robux-now_GM431946152.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/free-spin-coin-master-hacktoman_GM406889139.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/how-to-get-20210-robux-for-free_GM431946152.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/minecraft-free-minecraft_GM479516143.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_off00004d64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D64 23884 bytes
SHA-256: 716d9e8eefe0de08ac611d94281511f684470c3f4575e8da6b569d33f8b3eec7
font_01_sfnt_off00008304.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8304 18288 bytes
SHA-256: 2b6efa5e62152ff8c49d64075f52aeeb5d732445f14fabab56fec2f8f3dafea1

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