Malicious PDF — malware analysis report

Static analysis result for SHA-256 617907c0fe5dd52c…

MALICIOUS

PDF

42.8 KB Created: 2021-05-12 00:10:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d7109a20075225cc042c1a3bc79ea8bc SHA-1: 2c9d8ac04bcd4384342c9a3fc71910be9f03f548 SHA-256: 617907c0fe5dd52c972b1bf3b62f32426a5b6c55298bc57ad33991a0f4f91ecc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to external websites, including a known malicious redirector. The document body and heuristics indicate a lure related to game hacks and free currency, designed to entice users to click on these links. The primary link, 'https://netcdn.xyz/app/406889139/how-to-get-free-spins-on-coin-master-facebook-game-hack', is identified as a malicious redirector. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

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/how-to-get-free-spins-on-coin-master-facebook-game-hack In PDF document text
    • https://anshingtek.com.tw/image/data/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/free-coin-master-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/coin-master-links-that-don-t-expire_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/coin-master-level-3_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/coin-master-hack-app-for-ios_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/coin-blogspot_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/easy-robux-com_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/coin-master-fun-hack-online_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/coin-master-free-coins-and-spins-today_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/freespinandcoin-blogspot-coin-master_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/coin-master-hack-apk-2021-ios_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/coin-master-free-spins-and-chips_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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
stream_003_off00004bc6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BC6 24716 bytes
SHA-256: b07e1cb34f7a656b6470cc1c81c468eaaadbe6c3f019105c2e28a2db89a89785
font_01_sfnt_off0000849e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x849E 18380 bytes
SHA-256: 71bee5fb83ca58b21c1d24b393ac6a95aa3d07cb2aa8ee860216aa324e2c09d6

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