Malicious PDF — malware analysis report

Static analysis result for SHA-256 e644dc2624370775…

MALICIOUS

PDF

42.5 KB Created: 2020-08-08 02:27:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4914b04a053d28105c27fd3231b3c82f SHA-1: c0a81d2d4badddf3465a97f649162a72ec955030 SHA-256: e644dc2624370775686198f8e147417fe850b469dbcca3533e90221d5ff8ac89
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link redirects to a known malicious URL. The document body text and embedded links suggest a lure for free PDF downloads, which is a common social engineering tactic. The primary malicious IOC is the redirector 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.cc/pify?keyword=peter+handke+libros+pdf+gratis
    • http://files.mcgilltennis.com/uploads/1/3/2/8/132815298/c67deab.pdf
    • http://files.angelaherbert-hodges.com/uploads/1/3/0/7/130739895/7811517.pdf
    • http://files.mattstevensultra.com/uploads/1/3/2/7/132710491/favut.pdf
    • https://cdn.shopify.com/s/files/1/0434/2031/9893/files/dijiresurobujubaxux.pdf
    • https://cdn.shopify.com/s/files/1/0434/9411/3446/files/79556705884.pdf
    • https://cdn.shopify.com/s/files/1/0429/3738/5123/files/empirical_research_design.pdf
    • https://cdn.shopify.com/s/files/1/0436/1430/6467/files/the_masonic_bible.pdf
    • https://cdn.shopify.com/s/files/1/0434/5593/8725/files/labikufufeja.pdf
    • https://cdn.shopify.com/s/files/1/0434/8795/3053/files/descargar_libro_de_operatoria_dental_de_barrancos_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0437/2214/5943/files/rokinadafu.pdf
    • https://cdn.shopify.com/s/files/1/0433/5121/2200/files/tilumeratoj.pdf
    • https://cdn.shopify.com/s/files/1/0432/6539/2804/files/55014984929.pdf
    • https://cdn.shopify.com/s/files/1/0432/1935/3757/files/14765416511.pdf
    • https://cdn.shopify.com/s/files/1/0437/0874/3834/files/48001715147.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_off0000643e.bin
559d5ffaead4823aff81cd1a4fdccd533b275d28f553c1e85e97e95623ceb3e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x643E 5508 bytes
font_01_sfnt_off000076eb.bin
a58b1698b65bda5931e6ee757bdd750eabc27bcb1a924bc450683b1b43298ecb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76EB 11312 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.