Malicious PDF — malware analysis report

Static analysis result for SHA-256 917ab3e1115226bd…

MALICIOUS

PDF

68.4 KB Created: 2020-08-02 04:56:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 99906f8f395af4c2eeff492b541e8a23 SHA-1: 81f58b523cfcfb768646ce85315fcc72c9dd9354 SHA-256: 917ab3e1115226bd7e1a664c9afa2ed049c622868e566e9b9826bdeadc3dea61
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic indicating it links to known malicious redirector infrastructure. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, some pointing to benign Shopify domains and others to unknown domains. The presence of a visual download button lure further supports a malicious intent to redirect users to harmful content. The primary malicious URL identified is https://ttraff.com/pify?keyword=vinayaka+chavithi+pooja+telugu+pdf.

Heuristics 4

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ttraff.com/pify?keyword=vinayaka+chavithi+pooja+telugu+pdf
    • http://files.mapleafdals.com/uploads/1/3/1/6/131607683/xaziposoxegi_jogumadanokaraz_gimowewis_lejoraru.pdf
    • http://files.junktheband.com/uploads/1/3/1/4/131407802/333642.pdf
    • http://files.wawaudax.com/uploads/1/3/1/6/131637553/3983133.pdf
    • http://files.wawa
    • https://cdn.shopify.com/s/files/1/0439/4047/9131/files/adam_smith_theory_of_economic_growth_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0437/5671/6186/files/junepuwuwemugaxoxerexeraf.pdf
    • https://cdn.shopify.com/s/files/1/0437/0857/9993/files/32241215575.pdf
    • https://cdn.shopify.com/s/files/1/0437/4865/5265/files/milebenevetokabedesa.pdf
    • https://cdn.shopify.com/s/files/1/0430/2074/6906/files/baresebaxewufakif.pdf
    • https://cdn.shopify.com/s/files/1/0430/7052/1495/files/redijagaresunufuvosuj.pdf
    • https://cdn.shopify.com/s/files/1/0430/8267/8433/files/free_woodworking_plans_diy_projects.pdf
    • https://cdn.shopify.com/s/files/1/0434/6642/4470/files/fakefetavowidudodusukojew.pdf
    • https://cdn.shopify.com/s/files/1/0439/9883/8942/files/nabutaxavu.pdf
    • https://cdn.shopify.com/s/files/1/0431/4605/1744/files/mopapowuxi.pdf
    • https://cdn.shopify.com/s/files/1/0434/2228/5976/files/rogalivevixakukavexewu.pdf
    • https://cdn.shopify.com/s/files/1/0429/5219/6249/files/cincuenta_sombras_de_grey.pdf
    • https://cdn.shopify.com/s/files/1/0440/6122/9206/files/bolixetarutazekutosimi.pdf
    • https://cdn.shopify.com/s/files/1/0435/1829/6228/files/54138212432.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000969e.bin
ae7ea6890dac86ac914adbb2d37b8e9bea68f019bc78c3dde22639d4c184f9ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x969E 5412 bytes
font_01_sfnt_off0000a927.bin
f117ec572e66f0e9fdc82e703ba521ad2c705af4c49615cc7a7717cd5a276ad9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA927 20272 bytes
font_02_sfnt_off0000d855.bin
fc08b1ea9e6615d03de73d500b9ad897a3ebfd39872d72b3e3e0952abf4891cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD855 14432 bytes

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