Malicious PDF — malware analysis report

Static analysis result for SHA-256 919334f6d16e730e…

MALICIOUS

PDF

35.0 KB Created: 2020-08-17 03:27:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92ee8419564520c96aee5457f073b6dd SHA-1: 5298db125355920eaab8d65d6966679d9ba44c68 SHA-256: 919334f6d16e730e8955c7be3966ffc33dc4eab28952850492d51f33df65331a
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a common tactic for distributing malicious content. One prominent link, 'https://ttraff.ru/pify?keyword=episode+guide+ncis+new+orleans+season+3', points to a known malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to disguise the malicious intent. The presence of a link farm heuristic further supports the malicious nature of the document.

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=episode+guide+ncis+new+orleans+season+3
    • http://files.feedthewobbegong.com/uploads/1/3/2/8/132814073/2052547.pdf
    • http://lobimis.pro4uk.com/uploads/1/3/1/3/131398455/7138037.pdf
    • http://wavev.areyoureallybringinghim.com/uploads/1/3/1/3/131398091/xejamupexirim.pdf
    • https://cdn.shopify.com/s/files/1/0444/4500/8039/files/caracteristicas_de_los_aditivos_alimentarios.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zimupumunilojoduwa.pdf
    • https://cdn.shopify.com/s/files/1/0427/4801/8855/files/54251228993.pdf
    • https://cdn.shopify.com/s/files/1/0437/4839/3112/files/solegakejegari.pdf
    • https://cdn.shopify.com/s/files/1/0438/8651/0232/files/gobukubetuzamenaxixojasav.pdf
    • https://cdn.shopify.com/s/files/1/0430/2965/9805/files/46760537924.pdf
    • https://cdn.shopify.com/s/files/1/0433/9017/3349/files/37991682226.pdf
    • https://cdn.shopify.com/s/files/1/0432/3131/4077/files/44107217735.pdf
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/evan_moor_daily_phonics_grade_2.pdf
    • https://cdn.shopify.com/s/files/1/0430/7261/8657/files/folona.pdf
    • https://cdn.shopify.com/s/files/1/0430/9850/5377/files/target_cashier_training_manual.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_off00004bc8.bin
698c77fe2d79f108354a48d4a58c8dacda3e5ada82199e341448a5ee90ef2d7b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BC8 5456 bytes
font_01_sfnt_off00005e6f.bin
770e5d0794da333df86336312e208e5cade15db661d9b9b83d63de6c49b35dc7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E6F 9628 bytes

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