Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad2ff6b045a029c9…

MALICIOUS

PDF

34.8 KB Created: 2021-07-05 00:16:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 4147e0587413a4a52b9dfa08b6aae06e SHA-1: aae8bdce2ff5867eff3db1caeef3d65675f8a481 SHA-256: ad2ff6b045a029c99903f82a026db2498a8cdadd0255421de5a0a775084a6f26
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links, including one identified as a malicious redirector. The primary lure appears to be related to 'Coin Master Free Spins' and 'Robux' generators, aiming to trick users into visiting potentially harmful websites. The document's structure and embedded links suggest an attempt to lead users to scam or phishing pages.

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/406889139/coin-master-free-spins-without-human-verification-game-hack In PDF document text
    • http://opac.stiesa.ac.id/repository/how-to-hack-roblox-players-2021_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/pointsprizes-com-earn-free-robux-legally_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/daily-coin-master-link_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/robux-for-surveys_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/how-to-cheat-in-roblox-prison-life_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/where-to-put-code-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/avatar-roblox-skin-free_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/free-robux-generator-no-human-verification-100_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/tiktok-free-tv-shows_GM835599320.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/free-coins-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/coin-master-free-spins-link-today-hack_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/how-to-get-free-spins-on-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/rewards-robux_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/mathep_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/hack-coin-master-1_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/how-to-make-a-minecraft-bedrock-server-for-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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_off000031f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31F3 22256 bytes
SHA-256: 282e6094b2d3e5ce6475d49890a34c5b98c740623cf8aed2fcef550f38994b1b
font_01_sfnt_off00006350.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6350 19072 bytes
SHA-256: a1a0b1ab0678d2e7370b26dea7cb70dd1820c23c6d3f0d70e66f9be1cb5732f9

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