Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d26f9245ed3057c…

MALICIOUS

PDF

42.2 KB Created: 2020-08-22 23:10:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c67873fb6089f764702a0bafcac0767 SHA-1: 2a0c9b4e85701240607d45593ae6086d8910490c SHA-256: 1d26f9245ed3057c2fce1cf9d44de7cb80ed01c28e45b0ae1dd945749030fa5f
120 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a known malicious redirector, ttraff.com, which is designed to obscure the final destination. The document body, though heavily obfuscated, contains the URL https://ttraff.com/pify?keyword=bollywood+latest+songs++website, suggesting a lure related to entertainment content. The presence of numerous external PDF links, many hosted on cdn.shopify.com, indicates a link farm strategy, likely to improve search engine ranking or distribute malicious 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=bollywood+latest+songs++website
    • http://memugajed.sharerepurchase.com/uploads/1/3/1/6/131606347/nebibe_gutegif.pdf
    • http://jabani.thelavishautospa.com/uploads/1/3/0/9/130969592/karaziz.pdf
    • https://cdn.shopify.com/s/files/1/0432/9157/4432/files/ruvudinijupax.pdf
    • https://cdn.shopify.com/s/files/1/0428/1470/1735/files/dujajexutite.pdf
    • https://cdn.shopify.com/s/files/1/0437/2407/9254/files/weather_alexandria_va_hourly.pdf
    • https://cdn.shopify.com/s/files/1/0437/6068/1109/files/letter_of_intent_for_internship.pdf
    • https://cdn.shopify.com/s/files/1/0435/2140/9184/files/xuputiva.pdf
    • https://cdn.shopify.com/s/files/1/0432/2862/7099/files/exam_results_sheet_explained.pdf
    • https://cdn.shopify.com/s/files/1/0437/8230/8002/files/immutablemap_vs_hashmap_performance.pdf
    • https://cdn.shopify.com/s/files/1/0434/7808/9878/files/65783296847.pdf
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/9416883672.pdf
    • https://cdn.shopify.com/s/files/1/0433/7877/0076/files/notojadudekixifimeli.pdf
    • https://cdn.shopify.com/s/files/1/0433/4852/5206/files/kamegilaruvetexalonenewov.pdf
    • https://cdn.shopify.com/s/files/1/0427/6148/6503/files/6909502451.pdf
    • https://cdn.shopify.com/s/files/1/0430/8742/9781/files/categorical_syllogism.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_off000066ef.bin
d0c99ac3af7db40806f3e795295708be27632d9e8cb61e05143aa561487c6389		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66EF 5280 bytes
font_01_sfnt_off00007910.bin
3fb86aab46c7f2ae796635004e9038eed49da738ba9ecc321dffe06b4c51e9ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7910 10080 bytes

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