Malicious PDF — malware analysis report

Static analysis result for SHA-256 d18382fe6ccea961…

MALICIOUS

PDF

33.5 KB Created: 2020-08-25 13:45:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 41eb22bd94e0edbbf92608225c77ad2e SHA-1: d80c9e49dd97d0f3bc25d58ef718de5986a3bdfa SHA-256: d18382fe6ccea9614de28bb9432d68f1b132778c6828d6e23c15c54a8a2a0580
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com'. This URL is presented within the document body, likely as a lure. The file also exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on shopify.com, suggesting an attempt to distribute malicious links broadly. No scripts were extracted, and the document body is heavily obfuscated, but the presence of the malicious redirector is a strong indicator of malicious intent.

Heuristics 3

  • 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.
  • 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=amapiano+dance+videos++fakaza
    • http://files.midmichyouthultimate.com/uploads/1/3/2/6/132681378/6d1d1.pdf
    • http://kogaw.lytlethelemur.com/uploads/1/3/1/0/131070313/sodamuxokake.pdf
    • http://kuwulexo.timgriffiths3d.com/uploads/1/3/0/8/130814328/1782794.pdf
    • http://files.nuslobbu.com/uploads/1/3/0/7/130738991/raxalekobafotir.pdf
    • https://cdn.shopify.com/s/files/1/0429/5675/1002/files/c_format_specifier_p.pdf
    • https://cdn.shopify.com/s/files/1/0430/3906/4225/files/38727387982.pdf
    • https://cdn.shopify.com/s/files/1/0438/2552/8989/files/pdf_to_word_converter_i_love_u.pdf
    • https://cdn.shopify.com/s/files/1/0435/5565/1743/files/93691064218.pdf
    • https://cdn.shopify.com/s/files/1/0432/4347/1008/files/oxford_picture_dictionary_third_edition_english_spanish_dictionary.pdf
    • https://cdn.shopify.com/s/files/1/0462/0058/6398/files/sadezeluriwojawovag.pdf
    • https://cdn.shopify.com/s/files/1/0435/3661/3544/files/27390497993.pdf
    • https://cdn.shopify.com/s/files/1/0433/9793/9349/files/creditors_journal_template_excel.pdf
    • https://cdn.shopify.com/s/files/1/0432/2230/2888/files/83438090884.pdf
    • https://cdn.shopify.com/s/files/1/0461/0745/9747/files/wuronaramijanisokex.pdf
    • https://cdn.shopify.com/s/files/1/0430/2068/1377/files/terrestrial_biomes.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004625.bin
75304e0af492460ce6f3ef8ee76320b6550889c0926bb5937e183c0e0c7f4dd2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4625 5336 bytes
font_01_sfnt_off0000584b.bin
bfc3df2d1b107d150295f332d36d66b543b566c1e8c3c220595c5ee30caefaa1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x584B 9708 bytes

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