Malicious PDF — malware analysis report

Static analysis result for SHA-256 68e98622f22b61cc…

MALICIOUS

PDF

42.0 KB Created: 2021-05-14 11:55:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 59c811d2166a8b8ba7f6d089002bec45 SHA-1: 09f39da933fcc2aa72cf442bf8bb166005917734 SHA-256: 68e98622f22b61cc02aeb252646aab961ae056163ad8926e5a81c69c615275d3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically promoting game hacks and free currency generators. The primary malicious URL identified is https://netcdn.xyz/app/406889139/coin-master-claim-spins-game-hack. The document's content and embedded links strongly suggest a phishing or scam attempt designed to lure users to malicious websites.

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/coin-master-claim-spins-game-hack In PDF document text
    • https://www.yuko.com.tw/upload/files/minecraft-tools_GM479516143.pdfIn PDF document text
    • https://www.yuko.com.tw/upload/files/roblox-got-talent-piano-hack_GM431946152.pdfIn PDF document text
    • https://www.yuko.com.tw/upload/files/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://www.yuko.com.tw/upload/files/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • https://www.yuko.com.tw/upload/files/coin-master-hack-tips_GM406889139.pdfIn PDF document text
    • https://www.yuko.com.tw/upload/files/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.yuko.com.tw/upload/files/coin-master-invite-friends-hack_GM406889139.pdfIn PDF document text
    • https://www.yuko.com.tw/upload/files/coin-master-attack-block-hack_GM406889139.pdfIn PDF document text
    • https://www.yuko.com.tw/upload/files/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • https://www.yuko.com.tw/upload/files/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • https://www.yuko.com.tw/upload/files/how-to-earn-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • https://www.yuko.com.tw/upload/files/robux-premium_GM431946152.pdfIn PDF document text
    • https://www.yuko.com.tw/upload/files/coin-master-on-facebook_GM406889139.pdfIn PDF document text
    • https://www.yuko.com.tw/upload/files/free-coins-for-planet-master-game_GM406889139.pdfIn PDF document text
    • https://www.yuko.com.tw/upload/files/coin-master-free-spin-and-trading_GM406889139.pdfIn PDF document text
    • https://www.yuko.com.tw/upload/files/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
    • https://www.yuko.com.tw/upload/files/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • https://www.yuko.com.tw/upload/files/hackear-coin-master-sin-verificacion_GM406889139.pdfIn PDF document text
    • https://www.yuko.com.tw/upload/files/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • https://www.yuko.com.tw/upload/files/get-free-robux-today_GM431946152.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_off00004bcb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BCB 24044 bytes
SHA-256: bffa3825573bd5374cd9cc550d08b4c4df0164c64a6b45f45d6e98d97377c836
font_01_sfnt_off0000828e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x828E 18056 bytes
SHA-256: 910bba4e9b8698471f084902004854848b7ccdb185fd175879c14395f4b2f674

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