Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a0e8e5464d76b10…

MALICIOUS

PDF

41.9 KB Created: 2021-05-17 09:09:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: e73d03df6c073c8545d93f90a8a3b041 SHA-1: a2b7321306ef1b0feab05963ccb3dbd3448974d2 SHA-256: 0a0e8e5464d76b104fc3744fb8d8670376b7c5dcd4f1617c5195b002151f876c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting "game hacks" and "free spins" for popular games. The primary redirector URL is https://netcdn.xyz/app/406889139/coin-master-get-free-spins-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a social engineering lure designed to drive traffic to potentially malicious sites, likely as part of a phishing or scam campaign.

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-get-free-spins-game-hack In PDF document text
    • http://zarinnameh.ir/images/hack-coin-master-for-android_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/coin-master-rare-cards-hack_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/coin-master-hack-version-ios_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/8bp-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/robux-free-2021_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/roblox-free-exploits_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/how-to-get-to-village-3-in-coin-master_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/omplete-surveys-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://zarinnameh.ir/images/how-to-get-free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://zarinnameh.ir/images/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/link-for-free-spins-on-coin-master_GM406889139.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_off00004656.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4656 26308 bytes
SHA-256: a83ef449c254aead3112244f4e14f0cbefa7dce5c0c1cab7a0c4ff65e9f43eb2
font_01_sfnt_off000082c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82C0 17884 bytes
SHA-256: c6e3aa80acb50b183a8019e16e9643e6037364900a75a2e596e95bf6fddb3d38

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