Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b97e80ffba4863d…

MALICIOUS

PDF

41.9 KB Created: 2020-08-08 22:49:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 957bf1cc9edb3d92b5a9210738d8a72e SHA-1: 068d0fdf797b78c0d0573a1487c1a230c56fb754 SHA-256: 3b97e80ffba4863d6b0f60a0d998086c68e82dc689cdd0c8802512b4626048a1
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=online+marketing+articles+pdf'. This indicates the document's primary purpose is to redirect users to malicious sites. The PDF also exhibits characteristics of a link farm, embedding numerous external links, many of which are to Shopify domains, likely to improve search engine ranking for malicious content. The document body, though heavily obfuscated, contains the same redirector URL and several Shopify URLs.

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.cc/pify?keyword=online+marketing+articles+pdf
    • http://files.blissbeauty-gourock.com/uploads/1/3/1/4/131407135/ferugoz_nalabubal_zeweko_nitavejadid.pdf
    • http://files.willowpath.com/uploads/1/3/0/7/130738841/6038394.pdf
    • http://files.silvercreekservicesllc.com/uploads/1/3/1/8/131856919/77f488b9439.pdf
    • https://cdn.shopify.com/s/files/1/0432/0280/5921/files/inductive_and_deductive_approaches_to_research.pdf
    • https://cdn.shopify.com/s/files/1/0437/8768/1943/files/activity_based_costing_article.pdf
    • https://cdn.shopify.com/s/files/1/0429/3863/0300/files/24935405450.pdf
    • https://cdn.shopify.com/s/files/1/0433/2837/2886/files/split_function_python.pdf
    • https://cdn.shopify.com/s/files/1/0430/7949/9940/files/ducky_one_keyboard.pdf
    • https://cdn.shopify.com/s/files/1/0437/5805/9671/files/apc_back-_ups_xs_1300_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/5419/3047/files/76623524001.pdf
    • https://cdn.shopify.com/s/files/1/0429/8378/4601/files/79523649644.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bizisumexu.pdf
    • https://cdn.shopify.com/s/files/1/0432/2010/7424/files/najagadarono.pdf
    • https://cdn.shopify.com/s/files/1/0438/7926/8520/files/singapore_metro_rail_map.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_off00006599.bin
47657d99765abdfba4675dbb92c62cfa3405ebbb565bc192064d818e86b47a4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6599 5564 bytes
font_01_sfnt_off0000786d.bin
9498ab7d18a1bba2ad8764c9245a725425919402c8a1c05b6e5356d7c47bdaf8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x786D 10164 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.