Malicious PDF — malware analysis report

Static analysis result for SHA-256 a32a7cb7da33d2e1…

MALICIOUS

PDF

42.4 KB Created: 2020-08-18 20:39:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f140336676b6410a0d31babc0288026 SHA-1: ef07757927fac4052f4e451cb2ff466bb50c5fe5 SHA-256: a32a7cb7da33d2e1979bc73122c5609e649955c5764ea3d20e014a858c634053
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The primary redirector URL is https://ttraff.com/pify?keyword=skyrim+wiki+alchemy+guide. The document body is heavily obfuscated, but the presence of numerous links suggests a link farm or phishing attempt designed to redirect users to malicious sites.

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=skyrim+wiki+alchemy+guide
    • http://manuf.timetravelproductions.com/uploads/1/3/0/8/130814995/3797387.pdf
    • https://cdn.shopify.com/s/files/1/0440/5536/3734/files/rukagolaw.pdf
    • https://cdn.shopify.com/s/files/1/0435/3028/9311/files/80053847117.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/8833338052.pdf
    • https://cdn.shopify.com/s/files/1/0440/1538/6789/files/diseguxudetikalusufotijad.pdf
    • https://cdn.shopify.com/s/files/1/0431/4162/8072/files/41036130538.pdf
    • https://cdn.shopify.com/s/files/1/0432/6617/9230/files/8242059998.pdf
    • https://cdn.shopify.com/s/files/1/0432/9648/9632/files/resazegikexanejike.pdf
    • https://cdn.shopify.com/s/files/1/0431/5453/8656/files/shakespeare_the_sonnets.pdf
    • https://cdn.shopify.com/s/files/1/0431/7259/3820/files/17969213378.pdf
    • https://cdn.shopify.com/s/files/1/0428/7060/3932/files/random_integer_in_r.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_off00005c8f.bin
880c260aa2d2524c2aee3c2769a8d075e45b92e8343fdd2a8a08d4d22996fb61		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C8F 5536 bytes
font_01_sfnt_off00006f45.bin
6c55445bec249e701f7987ad69d8eeae7d972492eeaedc6e632c8d96e1bccd4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F45 14788 bytes

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