Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3523ecf74596ce4…

MALICIOUS

PDF

39.6 KB Created: 2020-08-11 17:07:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43734f77616d9510130a101157416d8b SHA-1: 7fc6c4339eccb9d55c982725d58b3b9b24de6790 SHA-256: d3523ecf74596ce43a70d8a8989e4bd7c75fac9265a1b5117bfc463bdbb2f3a2
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious link directs users to a URL that appears to be a lure for a 'bolt pitch chart pdf'. While many other links point to benign Shopify domains, the presence of the malicious redirector is a strong indicator of malicious intent. 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.com/pify?keyword=bolt+pitch+chart+pdf
    • http://files.beachcitiesrollerderby.com/uploads/1/3/2/6/132682040/giruroboje-raxilu-waxupujenini.pdf
    • http://lefurame.artbynicolamclean.com/uploads/1/3/0/9/130969368/doxezoweruv.pdf
    • http://files.crossfitparsons.com/uploads/1/3/1/3/131382841/4727500.pdf
    • https://cdn.shopify.com/s/files/1/0429/6110/9155/files/nugiwuguvekolaze.pdf
    • https://cdn.shopify.com/s/files/1/0435/5309/5844/files/rurunuvinugeboneke.pdf
    • https://cdn.shopify.com/s/files/1/0448/5169/1681/files/umayyad_caliphate.pdf
    • https://cdn.shopify.com/s/files/1/0431/0676/2903/files/az_203_book.pdf
    • https://cdn.shopify.com/s/files/1/0432/1994/3579/files/4648579891.pdf
    • https://cdn.shopify.com/s/files/1/0431/7514/9719/files/atresia_esofagus_adalah.pdf
    • https://cdn.shopify.com/s/files/1/0429/8709/4177/files/lajowofiweduxoviz.pdf
    • https://cdn.shopify.com/s/files/1/0429/0517/4183/files/60042785216.pdf
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/xuligeruvemat.pdf
    • https://cdn.shopify.com/s/files/1/0437/4390/3905/files/tedoxupalom.pdf
    • https://cdn.shopify.com/s/files/1/0434/3640/8982/files/piano_christmas_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15843942414.pdf
    • https://cdn.shopify.com/s/files/1/0440/5143/1574/files/simon_sinek_find_your_why_free.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_off000057d6.bin
5c3b6f380796ba833b58a91517124d15491318bff2148feed58cd9b90e9b48c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57D6 5116 bytes
font_01_sfnt_off0000692e.bin
599507ac4f626d181db651e451f4605b90f95c4bd15b35726d8bbaaa256f94c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x692E 12628 bytes

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