Malicious PDF — malware analysis report

Static analysis result for SHA-256 982019e925c47f74…

MALICIOUS

PDF

43.2 KB Created: 2020-08-26 19:43:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dc9024b4a0477e4ca87124ffcf220127 SHA-1: 31d70fb067eea6e358747fef119d0a25a057a770 SHA-256: 982019e925c47f7499113af922ef4ec7e0634a011cc4a3ce586b95bd89eddde2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, some of which are hosted on Shopify. The document also contains instructions to disable security software, a common tactic to bypass defenses. The presence of these elements strongly suggests a phishing or social engineering attack aimed at redirecting users to malicious content.

Heuristics 4

  • 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.
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • 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=tp+link+ac750+archer+c20+password
    • http://dobojivi.michaelreillystrategies.com/uploads/1/3/1/3/131381428/3303196.pdf
    • http://files.hertruthinwords.com/uploads/1/3/1/3/131379578/6878728.pdf
    • https://cdn.shopify.com/s/files/1/0429/4079/2999/files/nata_aptitude_test_sample_papers_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0430/6845/7113/files/business_card_template_illustrator_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/6659/7288/files/mitibidedi.pdf
    • https://cdn.shopify.com/s/files/1/0435/9186/0379/files/611819869.pdf
    • https://cdn.shopify.com/s/files/1/0431/3251/8555/files/carpinejar_livros.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dotalufakelani.pdf
    • https://cdn.shopify.com/s/files/1/0430/7373/2769/files/37914946182.pdf
    • https://cdn.shopify.com/s/files/1/0439/3595/7147/files/32917602161.pdf
    • https://cdn.shopify.com/s/files/1/0430/7661/6346/files/94058178787.pdf
    • https://cdn.shopify.com/s/files/1/0435/4444/5092/files/kugetilovigisolude.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_off000069bd.bin
960b82f32a202060046ca184e3feb9870cf7c86c1168c21889e6c457eba480c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69BD 5744 bytes
font_01_sfnt_off00007d56.bin
e364eb2e56209358079e3aa235ec1d553a5c150a7259201ebc61d7b03be073d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D56 10120 bytes

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