Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba9d3812a2ed3a7e…

MALICIOUS

PDF

33.9 KB Created: 2021-07-03 23:52:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 5f11ea85c53cc5ac71d294bf78a025c4 SHA-1: 4ef5723a2b8b11449af2c89ceddb8adf08c38dcb SHA-256: ba9d3812a2ed3a7ece063373be406a4e079f7b9760406891b4e4481d2e40b809
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 0.9980

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 http://netcdn.tw/app/479516143/classic-minecraft-net-hacks-game-hack PDF link annotation
    • https://allhimalayantreks.com/userfiles/files/roblox-hack-commands-and-lua-c_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/best-hack-gui-roblox_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/free-money-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/denis-t-shirt-roblox-free_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/free-roblox-generatr-accounts_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/aristois-minecraft-hack_GM479516143.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/robux-place-rewards_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/coin-master-hack-lost-world-2021_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
font_00_sfnt_off000030dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30DD 22372 bytes
SHA-256: b1eb7aac0dcb5a90b5413cdd4af4ffdd895734c84c2aff9005346e146f429891
font_01_sfnt_off000062a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62A2 18100 bytes
SHA-256: e5e43c4f2a76601b68ea8201b0c37883eedd9e77f9c7f84ae37ad33981ff38f3

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