Malicious PDF — malware analysis report

Static analysis result for SHA-256 60776cac187b222d…

MALICIOUS

PDF

42.5 KB Created: 2020-08-03 18:47:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ae7d8fa42fbbff37cd36db9669243849 SHA-1: bd3e1e35a878c22c208d870c14d4fe47c2346d5f SHA-256: 60776cac187b222d50c2d9981238de47d4e01fde5a226d27f372e32f492d4fc9
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm designed for SEO manipulation or traffic redirection. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=political+world+map+pdf+black+and+white'. The document body and embedded link data indicate a lure related to 'political world map pdf black and white'. No scripts were extracted, but the PDF structure itself facilitates the malicious linking behavior.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.ru/pify?keyword=political+world+map+pdf+black+and+white
    • http://files.craigleacapetown.com/uploads/1/3/1/3/131383823/4715212.pdf
    • http://files.advancedurbanmarginality.com/uploads/1/3/1/8/131860060/lepemomo.pdf
    • http://files.morocco-desert-sahara-tours.com/uploads/1/3/0/9/130969080/paralopisuxelag.pdf
    • http://files.theequinelink.net/uploads/1/3/1/1/131164552/ratikove.pdf
    • http://files.sobellkarate.com/uploads/1/3/1/3/131380177/3475802.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0429/3555/0111/files/21968090313.pdf
    • https://cdn.shopify.com/s/files/1/0434/8326/7236/files/sugegawola.pdf
    • https://cdn.shopify.com/s/files/1/0431/8006/4936/files/79099751679.pdf
    • https://cdn.shopify.com/s/files/1/0433/7880/2846/files/66460187539.pdf
    • https://cdn.shopify.com/s/files/1/0440/8098/8325/files/jozejatezewu.pdf
    • https://cdn.shopify.com/s/files/1/0434/9086/9410/files/43460887995.pdf
    • https://cdn.shopify.com/s/files/1/0431/1931/3062/files/11045700889.pdf
    • https://cdn.shopify.com/s/files/1/0437/1726/3510/files/19361897314.pdf
    • https://cdn.shopify.com/s/files/1/0429/5196/6873/files/mupazobuge.pdf
    • https://cdn.shopify.com/s/files/1/0431/4539/6384/files/59921988402.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/21154843933.pdf
    • https://cdn.shopify.com/s/files/1/0431/0741/8274/files/ximemor.pdf
    • https://cdn.shopify.com/s/files/1/0430/9182/0711/files/largest_city_in_kansas.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006812.bin
4769134768c576ccffbe8226248c00cf491f89411ae0b4dfb3d250cd963cde85		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6812 5516 bytes
font_01_sfnt_off00007ab9.bin
3b0ba7d2980a513febc48ec0b2d27132c238685ca3d0af971cfae65c2ad5a238		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AB9 10060 bytes

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