Malicious PDF — malware analysis report

Static analysis result for SHA-256 49a268d0a9ce1d31…

MALICIOUS

PDF

60.5 KB Created: 2020-08-04 16:32:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 579ee91a087fc9a5f45bed38d3c668a6 SHA-1: 01c0214c3d8185ca6ec4ca86025f5d926b647164 SHA-256: 49a268d0a9ce1d31dacff54445fcaa23a2b39dd9b867bced1137dac9e626ccf7
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=dieta+anticancer+libro+pdf'. This indicates a social engineering attempt to trick users into visiting a malicious site, likely for further exploitation or malware delivery. The document body also contains numerous embedded URLs, many pointing to Shopify, which are likely part of a link farm to improve search engine ranking for 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.cc/pify?keyword=dieta+anticancer+libro+pdf
    • http://files.andyknappmusic.com/uploads/1/3/2/6/132680905/vinareku.pdf
    • http://jipixo.kellycarmichaelbooz.com/uploads/1/3/1/3/131380729/5262624.pdf
    • http://files.alphaphicsueb.com/uploads/1/3/2/3/132302768/dcb45e64d9f76cb.pdf
    • http://files.mcmillanvetclinic.com/uploads/1/3/2/6/132695714/soboxodoma.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/2033782386.pdf
    • https://cdn.shopify.com/s/files/1/0433/8394/7427/files/saruzoka.pdf
    • https://cdn.shopify.com/s/files/1/0433/2588/2523/files/30670593503.pdf
    • https://cdn.shopify.com/s/files/1/0429/7919/7081/files/tomilopedubagositotisek.pdf
    • https://cdn.shopify.com/s/files/1/0434/2172/8918/files/nakalinobinutaxi.pdf
    • https://cdn.shopify.com/s/files/1/0430/8054/8503/files/rapifipakixutedozusoz.pdf
    • https://cdn.shopify.com/s/files/1/0434/2707/0104/files/79421545702.pdf
    • https://cdn.shopify.com/s/files/1/0435/5578/2817/files/kigopafomuxukada.pdf
    • https://cdn.shopify.com/s/files/1/0434/9093/4949/files/zikizuguxinoza.pdf
    • https://cdn.shopify.com/s/files/1/0437/6068/1111/files/home_directory_mac.pdf
    • https://cdn.shopify.com/s/files/1/0432/5477/5970/files/jofetudakeb.pdf
    • https://cdn.shopify.com/s/files/1/0438/7491/0376/files/97890662856.pdf
    • https://cdn.shopify.com/s/files/1/0435/9657/8975/files/coherence_bandwidth.pdf
    • https://cdn.shopify.com/s/files/1/0431/8124/4577/files/sphere_grid_ffx.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008bbe.bin
6ee9f0410629df3cd05839e0a27957e8830bca8efd327889fb12c3040545d54d
pdf-font-stream PDF embedded font (sfnt) at offset 0x8BBE 4900 bytes
font_01_sfnt_off00009c64.bin
ed9a0482f567497e357ef48414f2afc777bfe7c9cb2b21a9cc621f9b4d5c71f8
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C64 10816 bytes
font_02_sfnt_off0000c19f.bin
afef7078cb2df19c3af6e0a290a1e91943695396d6c8eacc2b40ed28c0b27951
pdf-font-stream PDF embedded font (sfnt) at offset 0xC19F 16120 bytes
font_03_sfnt_off0000d68a.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0xD68A 4324 bytes