Malicious PDF — malware analysis report

Static analysis result for SHA-256 8457713fef391f05…

MALICIOUS

PDF

42.4 KB Created: 2021-05-14 12:02:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: c92224cf4bc380c5d9fb66789f4a0d41 SHA-1: 6e4e2331e4d8b0998df0e01a043386d07e953a18 SHA-256: 8457713fef391f05d95e82c0d56f2b5efa5e1c9b71d9827b4dccedbc71133d39
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and embedded text promoting free game items, specifically referencing 'Coin Master' and 'Roblox' hacks. The primary malicious URL, https://netcdn.xyz/app/406889139/free-spins-coin-master-october-17-2021-game-hack, is flagged as a malicious redirector. The document body also contains numerous other URLs pointing to similar lures, suggesting a phishing or scam campaign designed to trick users into visiting potentially harmful sites.

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-spins-coin-master-october-17-2021-game-hack In PDF document text
    • http://itbits.ie/images/coin-master-daily-gift-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://itbits.ie/images/easy-roblox-today_GM431946152.pdfIn PDF document text
    • http://itbits.ie/images/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://itbits.ie/images/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://itbits.ie/images/free-card-collection-in-coin-master_GM406889139.pdfIn PDF document text
    • http://itbits.ie/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://itbits.ie/images/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://itbits.ie/images/roblox-source_GM431946152.pdfIn PDF document text
    • http://itbits.ie/images/how-to-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://itbits.ie/images/free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://itbits.ie/images/wwwcoin-master-free-spincom_GM406889139.pdfIn PDF document text
    • http://itbits.ie/images/coin-master-spin-link-today_GM406889139.pdfIn PDF document text
    • http://itbits.ie/images/coin-master-coins_GM406889139.pdfIn PDF document text
    • http://itbits.ie/images/hack-coin-master-using-cheat-engine_GM406889139.pdfIn PDF document text
    • http://itbits.ie/images/coin-master-hack-online-pc_GM406889139.pdfIn PDF document text
    • http://itbits.ie/images/free-limiteds-roblox_GM431946152.pdfIn PDF document text
    • http://itbits.ie/images/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://itbits.ie/images/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • http://itbits.ie/images/robux-earning-websites_GM431946152.pdfIn PDF document text
    • http://itbits.ie/images/roblox-verification_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_off000049ae.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49AE 24908 bytes
SHA-256: 539128b44ae63d0e8db090b469a55bb60b277ea5e05c57bc3248348e0b4d644f
font_01_sfnt_off00008277.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8277 18504 bytes
SHA-256: aa7bff32dbd331c78ef5965829602ae5e6111fcf7e9748869226dce5f8ff9ec9

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