Malicious PDF — malware analysis report

Static analysis result for SHA-256 882355ddfe8e045d…

MALICIOUS

PDF

76.4 KB Created: 2020-08-10 01:33:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b97de09aabf1aa40e7bed0546ddbaa1 SHA-1: 4b299d7275077073a7d01066fb96b6d9bbc3c7f2 SHA-256: 882355ddfe8e045d49676cfc1d76fe29655c5a907f04bcadf2f3ed857f2a264f
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=athletics+track+and+field+dimensions+pdf', suggesting a lure to a malicious site.

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=athletics+track+and+field+dimensions+pdf
    • http://safopu.stefanomitrione.com/uploads/1/3/0/7/130738837/vatop-jexudijebudiri-vomix-xawumesek.pdf
    • http://files.campbellbarnescounselling.com/uploads/1/3/0/8/130814935/a24b2a963.pdf
    • http://jusibavut.saving90.org/uploads/1/3/2/3/132303382/kawoti.pdf
    • http://files.anthonyescobar.org/uploads/1/3/1/3/131379724/dumam-bezipotapo.pdf
    • http://files.stnectariosgeorgegoc.com/uploads/1/3/0/8/130814594/tewet-difukezos-guboko-wejaxepitot.pdf
    • https://cdn.shopify.com/s/files/1/0448/5575/4914/files/days_until_pitchers_and_catchers_report_2017.pdf
    • https://cdn.shopify.com/s/files/1/0432/5530/0249/files/cancionero_musical_de_palacio.pdf
    • https://cdn.shopify.com/s/files/1/0432/3462/3643/files/fimelebogaxolebo.pdf
    • https://cdn.shopify.com/s/files/1/0437/5671/6186/files/11792211646.pdf
    • https://cdn.shopify.com/s/files/1/0432/4386/4224/files/florida_new_hire.pdf
    • https://cdn.shopify.com/s/files/1/0433/1352/8987/files/6397102839.pdf
    • https://cdn.shopify.com/s/files/1/0433/6638/3768/files/wowekevepuwopenapan.pdf
    • https://cdn.shopify.com/s/files/1/0440/2397/2005/files/calculus_early_transcendental_functions_larson_6th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0439/6069/6990/files/50225896502.pdf
    • https://cdn.shopify.com/s/files/1/0431/0741/8274/files/rick_ross_hold_me_back.pdf
    • https://cdn.shopify.com/s/files/1/0437/8476/5591/files/behaviorism_in_the_classroom.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_off0000ec41.bin
08e3471d868eae3062ecb97a19deb3f55cd9e3f261e97b2d415a0ffccc7f00a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC41 5448 bytes
font_01_sfnt_off0000fe9f.bin
9e425a90c64e8c6041e985b3249bd3ee865961409a185400e25d75138c468155		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFE9F 10976 bytes

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