Malicious PDF — malware analysis report

Static analysis result for SHA-256 e29056b70e29a33e…

MALICIOUS

PDF

43.0 KB Created: 2021-05-19 00:31:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 6793937b018d3209a4615de9e6ad73c3 SHA-1: 4a4d4ef1d665a9255302a91455a5504afe586be1 SHA-256: e29056b70e29a33e175754d6c2af2bf5a062c52487d27fb5a641b0b7be0f4b8b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9630

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/coinmaster-com-game-hack PDF link annotation
    • https://www.ausecus.com/images/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://www.ausecus.com/images/roblox-hacks-com_GM431946152.pdfIn PDF document text
    • https://www.ausecus.com/images/roblox-free-item-codes_GM431946152.pdfIn PDF document text
    • https://www.ausecus.com/images/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • https://www.ausecus.com/images/how-to-hack-in-roblox-prison-life_GM431946152.pdfIn PDF document text
    • https://www.ausecus.com/images/free-flip-master-coins_GM406889139.pdfIn PDF document text
    • https://www.ausecus.com/images/roblox-hack-apk_GM431946152.pdfIn PDF document text
    • https://www.ausecus.com/images/coin-master-hacks_GM406889139.pdfIn PDF document text
    • https://www.ausecus.com/images/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.ausecus.com/images/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.ausecus.com/images/get-free-robux-info_GM431946152.pdfIn PDF document text
    • https://www.ausecus.com/images/free-robux-android_GM431946152.pdfIn PDF document text
    • https://www.ausecus.com/images/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.ausecus.com/images/free-robux-scams_GM431946152.pdfIn PDF document text
    • https://www.ausecus.com/images/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • https://www.ausecus.com/images/coin-master-hack-2021-android_GM406889139.pdfIn PDF document text
    • https://www.ausecus.com/images/free-minecraft-maps-pe_GM479516143.pdfIn PDF document text
    • https://www.ausecus.com/images/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • https://www.ausecus.com/images/teach-me-to-hack_GM431946152.pdfIn PDF document text
    • https://www.ausecus.com/images/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004515.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4515 24332 bytes
SHA-256: 095fb329a0b97e96065c08968fba8e12a9e6695ab2fc80b56053ec6b43c2e388
font_01_sfnt_off00007d00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D00 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off000086eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86EB 17808 bytes
SHA-256: 35201c89c21c447e3a5acf437bfd3f20f3f3410cea54d73bd8e308df4a931eaa

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