Malicious PDF — malware analysis report

Static analysis result for SHA-256 d97e69cc37fdaff8…

MALICIOUS

PDF

46.6 KB Created: 2020-08-31 07:57:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a4e5ff41f6e542a79064749689207ec SHA-1: 9dc8241b906ce543f92430dfa23d12aaef3eb216 SHA-256: d97e69cc37fdaff820181616ed12db85cc6867fc8221f66fea4cf2d391bc0bc1
120 Risk Score

Malware Insights

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

The PDF file contains a high number of embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the same URL. This suggests the primary purpose is to lure users to malicious sites, likely for phishing or malware delivery.

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/wix?keyword=tornate+a+casa+nani
    • https://static.usrfiles.com/ugd/5e81b9_f10b0eab1d56417288054af777105646.pdf
    • https://static.usrfiles.com/ugd/0d2908_7fe204d8a8e1430b8475d585085aaeb5.pdf
    • https://static.usrfiles.com/ugd/b8c837_6741f90b353c4d09a2050c093fafc4bf.pdf
    • https://static.usrfiles.com/ugd/b8c837_cafbaa95d8724e1cbb564a3883c79c92.pdf
    • https://static.usrfiles.com/ugd/1df9ea_a87e7fa0e1c845e5b49064178eeb5937.pdf
    • https://cdn.shopify.com/s/files/1/0462/7169/2951/files/how_to_make_a_darker.pdf
    • https://cdn.shopify.com/s/files/1/0432/1571/6513/files/rugobimupaxusetatezuga.pdf
    • https://cdn.shopify.com/s/files/1/0435/3749/8271/files/99000535105.pdf
    • https://cdn.shopify.com/s/files/1/0447/9015/3365/files/language_games_activity_based_learning.pdf
    • https://cdn.shopify.com/s/files/1/0431/9775/9643/files/pumixun.pdf
    • https://cdn.shopify.com/s/files/1/0434/0069/1862/files/latex_developer_cv_template.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_off000078fd.bin
08d661019c5075533d3055e48b630221e3308d0501765253989063dd5b854726		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78FD 4712 bytes
font_01_sfnt_off00008907.bin
d6aa561a76ba6cb7114c2ad80afae4a9be9f1a32e1c975bc484b72413073b554		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8907 11424 bytes

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