Malicious PDF — malware analysis report

Static analysis result for SHA-256 530d57ec88f9e7b0…

MALICIOUS

PDF

117.8 KB Created: 2020-08-17 08:51:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b2e1bc3e25f94fd6c48bc997046577b SHA-1: 552a3d467f20630345e4efe8dbb0abb40466b562 SHA-256: 530d57ec88f9e7b0dc612db7e945b4269ce575a33323fb8149bbe2800e934ea4
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, which is a common tactic for delivering malware or phishing pages. The document body, though heavily obfuscated, contains text related to 'Hitchhiker guide to the galaxy encyclopedia galactica' and the URL itself, suggesting a lure. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the malicious nature of the embedded URL.

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.ru/pify?keyword=hitchhiker+guide+to+the+galaxy+encyclopedia+galactica
    • http://pezud.barosario.org/uploads/1/3/0/9/130969772/pivolozesi.pdf
    • https://cdn.shopify.com/s/files/1/0438/5197/2768/files/2657885292.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8178/files/67612752289.pdf
    • https://cdn.shopify.com/s/files/1/0432/4756/7010/files/qualitative_systematic_review.pdf
    • https://cdn.shopify.com/s/files/1/0432/8049/8841/files/kedexugowivizunasov.pdf
    • https://cdn.shopify.com/s/files/1/0437/5933/7621/files/caderno_de_encargos_pini.pdf
    • https://cdn.shopify.com/s/files/1/0448/1345/1430/files/loosening_the_grip_10th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0437/1077/5464/files/mysql_from_command_line.pdf
    • https://cdn.shopify.com/s/files/1/0434/1222/6202/files/mizawifeperomu.pdf
    • https://cdn.shopify.com/s/files/1/0437/8561/7570/files/ics_file_example.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_off00019465.bin
a643006629c098208b318763b3dcfd57a325ffa0a030c8f4aeb14cc381a39106		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19465 5352 bytes
font_01_sfnt_off0001a68f.bin
8e723b900b30277a19df69ff5eb21459046cbbd15b0de035a159c643bd3844e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A68F 10240 bytes

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