Malicious PDF — malware analysis report

Static analysis result for SHA-256 2eb25c4c32b0b5a7…

MALICIOUS

PDF

39.7 KB Created: 2020-08-17 07:09:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 71713b5c5d9c58421add482d90dbbbca SHA-1: aa44c8faceb23926e4b9e5650b0b10419fec8a4e SHA-256: 2eb25c4c32b0b5a73eaeeae67f646a379baa2a95e763702d1f89472b1416e61b
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.ru, which is disguised with a keyword related to carfax reports. The file also exhibits characteristics of a link farm, with numerous embedded URLs pointing to various PDF documents, many hosted on Shopify. The primary malicious URL is the redirector, which likely leads to a further malicious payload or phishing page. 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.ru/pify?keyword=minor+damage+carfax+report
    • http://fonap.thecircleofspirit.com/uploads/1/3/2/3/132302720/sabelofajagama-duvogupogasep-gipuxukox.pdf
    • http://files.sarahsimmonssings.com/uploads/1/3/2/6/132683070/3218999.pdf
    • http://vopan.athleteslab.org/uploads/1/3/1/3/131379179/6174727.pdf
    • http://files.genefambrough.com/uploads/1/3/0/9/130969358/826422.pdf
    • https://cdn.shopify.com/s/files/1/0433/6821/8780/files/58163111291.pdf
    • https://cdn.shopify.com/s/files/1/0427/6885/9303/files/overactive_bladder_symptom_score.pdf
    • https://cdn.shopify.com/s/files/1/0434/2402/2677/files/human_body_systems_test_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/10687526978.pdf
    • https://cdn.shopify.com/s/files/1/0429/0979/4463/files/folawowomole.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93867881616.pdf
    • https://cdn.shopify.com/s/files/1/0434/6940/6360/files/jenupijuguxobe.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8179/files/domimajanupoxivajipulupej.pdf
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/pibevulus.pdf
    • https://cdn.shopify.com/s/files/1/0430/6645/8266/files/rejezoduzumig.pdf
    • https://cdn.shopify.com/s/files/1/0432/8279/2606/files/cut_pages_free_online.pdf
    • https://cdn.shopify.com/s/files/1/0435/7043/0115/files/highschool_dxd_wikia.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_off00005d7d.bin
d88199b709b9dba8f41b789e1da1954662d6915bd92e809abfcdc4364c50da45		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D7D 5336 bytes
font_01_sfnt_off00006fa3.bin
3867bdcb7ba9a155c6cf904b8dcad53d941dcb4b7f5e93f8b782861c2f198941		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FA3 10044 bytes

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