Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ba319bb8c6e3e0d…

MALICIOUS

PDF

41.2 KB Created: 2020-08-14 20:40:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3eab0998a41fd42b227c95a20868ad2f SHA-1: 88b2eba55cdf8d0ef6447291f55b6ed6d225d7d5 SHA-256: 4ba319bb8c6e3e0d079d896cb1734e8fb9d3aef20d39f0edd4da0a19ae83f343
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically to 'https://ttraff.com/wb?keyword=queen%20bohemian%20rhapsody%20easy%20piano%20pdf'. This indicates a social engineering attempt to trick users into visiting a potentially harmful site. The document body itself is heavily obfuscated but contains references to the lure and the PDF creation tool.

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/wb?keyword=queen%20bohemian%20rhapsody%20easy%20piano%20pdf
    • http://files.cherylmillar.com/uploads/1/3/1/4/131454238/e8af06.pdf
    • http://files.nashville-reiki.com/uploads/1/3/1/8/131872017/pafodamipudem.pdf
    • http://xewugegu.salemlakemills.com/uploads/1/3/1/4/131483200/ce75ad2216.pdf
    • http://borarife.breakinheartsranch.com/uploads/1/3/0/9/130968926/3365535.pdf
    • https://cdn.shopify.com/s/files/1/0435/4162/7029/files/32720541992.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37144816260.pdf
    • https://cdn.shopify.com/s/files/1/0437/0812/1242/files/70252846789.pdf
    • https://cdn.shopify.com/s/files/1/0437/6775/8999/files/27308714639.pdf
    • https://cdn.shopify.com/s/files/1/0436/4566/5433/files/buzasewumegera.pdf
    • https://cdn.shopify.com/s/files/1/0432/8371/0117/files/lejarosiv.pdf
    • https://cdn.shopify.com/s/files/1/0428/3164/2780/files/canon_pixma_ip110_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/7833/6165/files/26398734433.pdf
    • https://cdn.shopify.com/s/files/1/0435/2029/5064/files/lodadosegokivamusoxep.pdf
    • https://cdn.shopify.com/s/files/1/0430/7956/5465/files/2003_ford_windstar_repair_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/0485/4426/files/venom_song_lyrics.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_off000061ae.bin
0483ce970c318f603ee2169509049f7280afacf9c98d99209cd9bf0db1171e1b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61AE 5552 bytes
font_01_sfnt_off00007459.bin
428454317b4d1e67a0440c1e9388a0a6edb414c1955eb4391750b2fe8152ebfd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7459 10460 bytes

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