Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0b2ae82194add09…

MALICIOUS

PDF

43.7 KB Created: 2020-08-03 14:08:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86b2a3baf1f5d1ff235f507b0a570e03 SHA-1: 31cf7ad1beabc653ff7fd174db2418917d86e807 SHA-256: f0b2ae82194add09570961f737f06b4b8bc61db589d52b00e0c02f3147b0359a
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates that the PDF links to known malicious redirector infrastructure via the URL 'https://ttraff.com/pify?keyword=polycythemia+causes+pdf'. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware distribution. No scripts were extracted from this sample.

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=polycythemia+causes+pdf
    • http://vatufawan.mrsevansenglishclass.com/uploads/1/3/2/7/132712323/9858839.pdf
    • http://files.duettechnology.com/uploads/1/3/0/8/130874477/momefafafavo_pinukuwu_wosevirirufuma.pdf
    • http://files.andy-buchan.co.uk/uploads/1/3/1/4/131456012/luxirewesafeke.pdf
    • http://files.ewanmcdermottdesign.com/uploads/1/3/1/8/131856234/1511665.pdf
    • https://cdn.shopify.com/s/files/1/0437/0006/0310/files/toginabaferem.pdf
    • https://cdn.shopify.com/s/files/1/0435/2026/2308/files/52605039404.pdf
    • https://cdn.shopify.com/s/files/1/0432/2282/7165/files/voxowamiv.pdf
    • https://cdn.shopify.com/s/files/1/0431/8127/7342/files/27469600392.pdf
    • https://cdn.shopify.com/s/files/1/0427/7446/2631/files/nakiwufivum.pdf
    • https://cdn.shopify.com/s/files/1/0430/9218/1145/files/46831791797.pdf
    • https://cdn.shopify.com/s/files/1/0437/9338/3585/files/31561814819.pdf
    • https://cdn.shopify.com/s/files/1/0438/5210/3842/files/lalulifezusujunega.pdf
    • https://cdn.shopify.com/s/files/1/0434/3899/7665/files/72960496427.pdf
    • https://cdn.shopify.com/s/files/1/0436/9452/2523/files/mepijaligosogetodip.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_off00006d10.bin
541b2c75e793614a6e6bdb980f540cf6e76d5287ff8fe9fc65b03cf3bd6c9ad9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D10 5404 bytes
font_01_sfnt_off00007f55.bin
95c5ca0a4b5773fb1c7a59a473b43e20853c140281e6a89c70e808e3857797b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F55 10140 bytes

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