Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3a079984935af07…

MALICIOUS

PDF

43.1 KB Created: 2020-08-19 08:40:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 963e8d047efe36b3be546397ba1a5d3c SHA-1: fce8bef5d10061636cc5501fc3e632ae9dcc4649 SHA-256: e3a079984935af075e060cee22cf25c372a8dce82cfe4adbd79aa3ebe39eb34e
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating a link to known malicious redirector infrastructure. Additionally, PDF_SEO_LINK_FARM indicates a mass of external PDF links, with the primary suspicious URL being https://ttraff.com/pify?keyword=abbaigaru+cinema+songs. The document body contains garbled text but includes the suspicious URL, suggesting the document's primary purpose is to redirect users to potentially harmful content.

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=abbaigaru+cinema+songs
    • http://jakoboka.hughesspringstxusa.com/uploads/1/3/1/1/131164250/jimisokafula.pdf
    • http://vinijene.anglersalibi.com/uploads/1/3/1/3/131398186/300d08e.pdf
    • https://cdn.shopify.com/s/files/1/0434/5780/6486/files/20646776661.pdf
    • https://cdn.shopify.com/s/files/1/0432/9373/7110/files/lalabokiwutekisalezogerug.pdf
    • https://cdn.shopify.com/s/files/1/0428/2603/9463/files/24845388672.pdf
    • https://cdn.shopify.com/s/files/1/0434/5308/7911/files/13216623850.pdf
    • https://cdn.shopify.com/s/files/1/0428/4927/1975/files/pagobunikikufilabe.pdf
    • https://cdn.shopify.com/s/files/1/0428/9586/8067/files/doubly_linked_list_implementation_c.pdf
    • https://cdn.shopify.com/s/files/1/0431/9870/9918/files/76233018904.pdf
    • https://cdn.shopify.com/s/files/1/0432/4206/1986/files/pocket_guide_to_enteral_nutrition.pdf
    • https://cdn.shopify.com/s/files/1/0430/9696/5269/files/cattle_diseases_symptoms_and_treatment.pdf
    • https://cdn.shopify.com/s/files/1/0436/0978/4482/files/vezumomutuju.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_off000062b6.bin
50e35146eec98340cf7733a7eecee73e1756743fa67dec50fad63ee01b14004b
pdf-font-stream PDF embedded font (sfnt) at offset 0x62B6 5216 bytes
font_01_sfnt_off00007450.bin
34c73d7af791656349e1ae82bd89c8465137aa6701cda29b99b28bd65db3ed8d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7450 13972 bytes