Malicious PDF — malware analysis report

Static analysis result for SHA-256 47fcafa672693615…

MALICIOUS

PDF

74.5 KB Created: 2020-08-06 16:39:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3d71840f45985ea3f6015af64d58228d SHA-1: 397f8a783ad274c0d540147e39a8b03cc1198321 SHA-256: 47fcafa672693615b74d36624709ad22a335bbe4dcbeb360a7c6a98acef05b56
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=dise%25C3%25B1o+de+un+elevador+de+cangilones+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external PDF links, many of which are hosted on Shopify domains. The document body, though heavily garbled, contains the same URL as the malicious redirector. The primary attack pattern involves luring users to a malicious URL, likely for subsequent exploitation or phishing.

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.cc/pify?keyword=dise%25C3%25B1o+de+un+elevador+de+cangilones+pdf
    • http://buzokupo.swagefitness.com/uploads/1/3/1/6/131606349/fisidexaxaxomuzi.pdf
    • http://files.lentenschool.org/uploads/1/3/1/6/131606405/da68ac91.pdf
    • http://files.geenatowne.com/uploads/1/3/1/3/131379312/binividifota.pdf
    • http://files.devynayre.com/uploads/1/3/1/3/131380063/sabogo.pdf
    • http://buzokupo.swagefitness.com/uploads/1/3/1/6/131606349/fisi
    • https://cdn.shopify.com/s/files/1/0431/7321/6411/files/chopin_waltz_in_a_minor_piano.pdf
    • https://cdn.shopify.com/s/files/1/0433/9020/6101/files/60952543195.pdf
    • https://cdn.shopify.com/s/files/1/0439/6436/7006/files/2754741815.pdf
    • https://cdn.shopify.com/s/files/1/0447/1973/4938/files/jace_everett_bad_things.pdf
    • https://cdn.shopify.com/s/files/1/0438/8972/1496/files/dictionary_of_public_administration.pdf
    • https://cdn.shopify.com/s/files/1/0435/3576/1576/files/64996015166.pdf
    • https://cdn.shopify.com/s/files/1/0431/8330/8962/files/27884073639.pdf
    • https://cdn.shopify.com/s/files/1/0428/5097/5910/files/kelewomijopagazobemo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0654/9406/files/tatufa.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/radeziwiwilajumigetadad.pdf
    • https://cdn.shopify.com/s/files/1/0430/7373/2768/files/95761067776.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18608783112.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000baa0.bin
aa7139eb6cceae6b70f541cea0f1e5bbae0127ab97722a73055096dfdf5bd5b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBAA0 5396 bytes
font_01_sfnt_off0000ccc1.bin
328b80addc14212f48b7fe5d4022672f5f41601ccf752b02a0e2a4af7dc2ab59		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCCC1 13376 bytes
font_02_sfnt_off0000f676.bin
ee42d7abba980986a0764b81b033cb9d35c699455efe678bb029cbd9eff3129a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF676 16324 bytes
font_03_sfnt_off00010c3a.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C3A 4324 bytes

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