Malicious PDF — malware analysis report

Static analysis result for SHA-256 b95854a19828b3f2…

MALICIOUS

PDF

46.2 KB Created: 2020-08-17 04:25:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 83b95727d941e03de0549ae249c3f557 SHA-1: 9fb844de35c3ea3dc1b3afb59109e298c922b300 SHA-256: b95854a19828b3f295ed35fd49802e5661180b30dcc7598a867e83c0ec5e7c29
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to ttraff.ru. It also exhibits characteristics of a PDF link farm, with numerous embedded links, many of which point to shopify.com domains. The document body, though partially corrupted, contains text related to a 'Civilization 6 switch guide' and the malicious URL, suggesting a lure to a potentially harmful site.

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.ru/pify?keyword=civilization+6+switch+guide
    • http://files.poorwarren.com/uploads/1/3/0/8/130874050/sasexuzo.pdf
    • https://cdn.shopify.com/s/files/1/0438/4607/4525/files/92073767922.pdf
    • https://cdn.shopify.com/s/files/1/0431/8245/7000/files/saxopaxipuvoxedax.pdf
    • https://cdn.shopify.com/s/files/1/0430/7720/6178/files/famowo.pdf
    • https://cdn.shopify.com/s/files/1/0434/2765/9932/files/park_babelsberg_plan.pdf
    • https://cdn.shopify.com/s/files/1/0435/4523/1509/files/facebook_free_install_computer.pdf
    • https://cdn.shopify.com/s/files/1/0433/1739/5614/files/najasegetagofegadumazeti.pdf
    • https://cdn.shopify.com/s/files/1/0434/2421/9293/files/99346385748.pdf
    • https://cdn.shopify.com/s/files/1/0436/5094/1078/files/workin_puff_daddy.pdf
    • https://cdn.shopify.com/s/files/1/0431/3936/7061/files/axis_bank_rtgs_form_2020.pdf
    • https://cdn.shopify.com/s/files/1/0435/6482/6783/files/vocabulary_words_with_synonyms_and_antonyms.pdf
    • https://cdn.shopify.com/s/files/1/0440/8714/8694/files/98744035911.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_off00007713.bin
e5a7baa06b0a750db7b28e2ea6732d31a51afac7a09556859751b80a46e77a5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7713 5368 bytes
font_01_sfnt_off0000896a.bin
2ad3943d0d43b648688666907651139c654901a53c27885b5f8a935a1889f680		 pdf-font-stream PDF embedded font (sfnt) at offset 0x896A 10184 bytes

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