Malicious PDF — malware analysis report

Static analysis result for SHA-256 93329d973957aaab…

MALICIOUS

PDF

38.4 KB Created: 2020-08-18 20:24:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 645b3a723673645d4b8c40765f9d84a8 SHA-1: 7e31a9f85b274ecacd75b80a21b80965a2048b9f SHA-256: 93329d973957aaab24ef9c5203272415efe29070a69742a9edf33a661494212c
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though partially corrupted, includes text related to 'Lotto shoes size guide' and the malicious URL, suggesting a phishing lure. Additionally, a heuristic for a PDF link farm was triggered, indicating the document contains numerous external links, with 'cdn.shopify.com' being a dominant host.

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.com/pify?keyword=lotto+shoes+size+guide
    • http://files.livinggodsmission.com/uploads/1/3/1/3/131379266/nixiberufo.pdf
    • http://files.homecandyco.com/uploads/1/3/2/6/132695551/lovejo.pdf
    • https://cdn.shopify.com/s/files/1/0428/6326/3910/files/molew.pdf
    • https://cdn.shopify.com/s/files/1/0431/2524/4053/files/new_blob_javascript.pdf
    • https://cdn.shopify.com/s/files/1/0435/7819/6129/files/aldosterona_definicion.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/74832969368.pdf
    • https://cdn.shopify.com/s/files/1/0437/6982/3383/files/nedugeginasinu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/probability_generating_function_examples.pdf
    • https://cdn.shopify.com/s/files/1/0433/5586/5243/files/37920627929.pdf
    • https://cdn.shopify.com/s/files/1/0430/7081/6407/files/blank_space_lyrics_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/7326/4030/files/past_simple_regular_verbs_exercises_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0430/0875/3827/files/29329980220.pdf
    • https://cdn.shopify.com/s/files/1/0437/6988/8920/files/acupressure_potent_points.pdf
    • https://cdn.shopify.com/s/files/1/0439/2534/0328/files/st_caste_list_in_maharashtra.pdf
    • https://cdn.shopify.com/s/files/1/0428/6880/1695/files/lajaruf.pdf
    • https://cdn.shopify.com/s/files/1/0438/3683/3954/files/automate_the_boring_stuff_with_python_book_download.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_off00005985.bin
8ee96883e9fda1c050ae3643d8e61e27ddcabb89eb24caf1cdabdb273e3fbf68		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5985 4740 bytes
font_01_sfnt_off000069a8.bin
f3fcdee9fe054782f82ed7bcecd9f803bdc5dd6bc5c15e12a4186d73ee41cb31		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69A8 10288 bytes

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