Malicious PDF — malware analysis report

Static analysis result for SHA-256 aca2bb1769c79692…

MALICIOUS

PDF

42.0 KB Created: 2021-05-19 06:54:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b43e3e0e0a549fc9c622931b005ba147 SHA-1: 2d331b9263f3b7513d6848eef1bad0b77d8c567a SHA-256: aca2bb1769c79692469d996925fb434975d1b3f392cefb262c95c5da8ee9adb0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure for game hacks and generators, directing users to a malicious redirector. The document body contains obfuscated text and multiple URLs pointing to potentially malicious PDF files hosted on samavetpharm.com, suggesting a phishing or scam campaign. No scripts were extracted from this sample, but the embedded URLs and redirector link are strong indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/free-download-coin-master-game-hack In PDF document text
    • http://samavetpharm.com/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/free-roblox-dominus_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/open-coin-master_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/como-hackear-coin-master-en-espaol_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/how-to-get-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/gold-card-coin-master-free_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/coin-master-unlimited-spins-hack_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/pro-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/coin-master-free-spins-2021-blogspot_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/coin-master-hack-fast-org_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/free-robux-net_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/gold-cards-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/free-robux-download_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/minecraft-win-10-free_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
stream_003_off0000498f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x498F 24360 bytes
SHA-256: aecbad6edb0b638cb06a599d5748601293cf71d1272f78ba9255320ac9e182a8
font_01_sfnt_off00008190.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8190 18292 bytes
SHA-256: f7e7ab01f272ced417b1f6f65c7a93c96b51da51ceb989c470a75dce226d63c1

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