Malicious PDF — malware analysis report

Static analysis result for SHA-256 208c093b3d5974bd…

MALICIOUS

PDF

34.1 KB Created: 2021-07-04 02:42:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6fc71e650d860899c8d179074e3b3685 SHA-1: f41ab4d23f7954f0ea4ac564e7a4f86e1e869236 SHA-256: 208c093b3d5974bd2d54e84719a57963337e8a81b374523db36a6c55a0086265
160 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 currency, directing users to malicious redirector infrastructure. The primary URL, http://netcdn.tw/app/406889139/coin-master-hack-app-for-iphone-game-hack, is identified as a known malicious redirector. The document's structure and embedded links suggest an attempt to exploit user interest in free in-game items to lead them to potentially harmful content or further stages of infection.

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-hack-app-for-iphone-game-hack In PDF document text
    • http://www.sbairs.com/datas/files/coin-master-2021-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/free-promo-robux-code_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/on-roblox-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/is-free-robux-real_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/coin-master-free-chest-link_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/coin-master-hack-app-for-iphone_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/static-moonactive_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/free-robux-giveaway_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/minecraft-java-account-free_GM479516143.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/coin-master-hack-facebook_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/pokemon-go-no-free-box_GM1094591345.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/how-to-hack-the-plaza-roblox_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/is-minecraft-vr-free_GM479516143.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/robuxmatch-com-free-robux_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
font_00_sfnt_off00003014.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3014 22500 bytes
SHA-256: 9bfaf481556e70bdbb00ec31375c2ce068f93e46f7ea04c4fda32e9f14794257
font_01_sfnt_off00006203.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6203 18512 bytes
SHA-256: 7745d005a4717d66690e1bbddb99291b25b8a5c762b991ae2cab35147c3293f6

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