Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f7d09278d3becdb…

MALICIOUS

PDF

53.2 KB Created: 2020-08-20 13:11:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7c06fdafcc8c4a380ea9ae3571073d9b SHA-1: e12a7a6f543983742fa5e19738455130e04e5635 SHA-256: 2f7d09278d3becdb0155f8fd376df8db9078a5969f7f436793d42880909fb482
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service. One such link, 'https://ttraff.ru/pify?keyword=europa+universalis+iv+ottoman+guide', is explicitly flagged as malicious. The document body, though heavily obfuscated, also contains this URL, suggesting the primary purpose is to lure users to malicious sites through a deceptive link farm.

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=europa+universalis+iv+ottoman+guide
    • http://fimobe.camden-airport.com/uploads/1/3/1/1/131164250/04e7911d4.pdf
    • http://files.felicecurcelli.net/uploads/1/3/1/3/131398231/df4a01ad8054586.pdf
    • http://vabufuru.joynorstrom.ca/uploads/1/3/1/6/131637814/e6ed38a173467.pdf
    • http://lusagaxa.ledrewcostello.com/uploads/1/3/1/3/131381428/e1794e69.pdf
    • https://cdn.shopify.com/s/files/1/0438/3434/3586/files/vodafone_annual_report_2020.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pobilimej.pdf
    • https://cdn.shopify.com/s/files/1/0439/4863/8363/files/74886304180.pdf
    • https://cdn.shopify.com/s/files/1/0437/8463/4530/files/adjective_forming_suffixes_list.pdf
    • https://cdn.shopify.com/s/files/1/0435/8383/2227/files/cydia_store_no_jailbreak.pdf
    • https://cdn.shopify.com/s/files/1/0429/1300/5724/files/manual_canon_eos_rebel_t3i_portugues.pdf
    • https://cdn.shopify.com/s/files/1/0429/1022/0447/files/cindy_trimm_prayers.pdf
    • https://cdn.shopify.com/s/files/1/0437/0399/2485/files/how_to_read_multimeter_analog.pdf
    • https://cdn.shopify.com/s/files/1/0431/4021/9037/files/jegulimigabezunavefifa.pdf
    • https://cdn.shopify.com/s/files/1/0429/9515/5105/files/la_methode_simple_pour_arreter_de_fumer_gratuit.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_off000092a0.bin
8830d15567d8f3efee15e478ff166956c1a96b054189fe62ebd688a4a6eaa532		 pdf-font-stream PDF embedded font (sfnt) at offset 0x92A0 5296 bytes
font_01_sfnt_off0000a491.bin
8e596e0c3bf9e54f1e71d66dc36ef71b547eafbbf2eef95876078c61a085f8b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA491 10264 bytes

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