Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c571f3eaca04902…

MALICIOUS

PDF

38.5 KB Created: 2020-08-22 02:20:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e8ec28e93818df377337bc51967ccfc SHA-1: 3e2b5ed731dd9e1dd9d2ca668b0b501ada35a414 SHA-256: 1c571f3eaca049020f1b376ba90631c2d3fe615c2050afd12e5d8d09c2f71fb2
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of a link farm designed to manipulate search engine results. One of the primary links directs to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=love+rosie+imdb+parents+guide', suggesting a lure related to the movie 'Love Rosie'. The presence of a malicious redirector indicates an attempt to lead the user to a malicious 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=love+rosie+imdb+parents+guide
    • http://files.christopherjdevine.com/uploads/1/3/0/7/130776022/27fd889.pdf
    • http://files.wstaylor.info/uploads/1/3/1/4/131438474/d64889b.pdf
    • http://kekelusus.wingerlab.org/uploads/1/3/1/4/131408984/vodexakewowu-munen-mopumufak-balabefip.pdf
    • http://pogediw.tamara-vasquez.com/uploads/1/3/0/7/130776089/3befbb40ebea59.pdf
    • https://cdn.shopify.com/s/files/1/0435/4077/5071/files/kegovexof.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/36726725464.pdf
    • https://cdn.shopify.com/s/files/1/0428/5523/5740/files/bus_simulator_2018_game_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/68513135127.pdf
    • https://cdn.shopify.com/s/files/1/0428/3590/2631/files/71943483103.pdf
    • https://cdn.shopify.com/s/files/1/0432/0709/8529/files/zebelaso.pdf
    • https://cdn.shopify.com/s/files/1/0428/4094/8892/files/embed_in_iframe.pdf
    • https://cdn.shopify.com/s/files/1/0440/1656/6422/files/livububoxaz.pdf
    • https://cdn.shopify.com/s/files/1/0431/6558/1469/files/business_studies_class_11_poonam_gandhi_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0431/5811/0363/files/66089259123.pdf
    • https://cdn.shopify.com/s/files/1/0429/8365/3535/files/13011547525.pdf
    • https://cdn.shopify.com/s/files/1/0431/7442/8829/files/mibamilufup.pdf
    • https://cdn.shopify.com/s/files/1/0439/3756/2779/files/low_cholesterol_diet_plan_australia.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_off0000580e.bin
dbe802afeac45447c790c27608009597eadc5ccbd2abb2073f1d5947810e7fd6
pdf-font-stream PDF embedded font (sfnt) at offset 0x580E 5388 bytes
font_01_sfnt_off00006a4a.bin
2e4cef02b12b101e0edb0810ec1557c1f9c3c94beafc6f9ae47f348b658ea426
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A4A 10264 bytes