Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbf3a0d726f40233…

MALICIOUS

PDF

40.4 KB Created: 2020-08-24 22:31:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 83f8fbaa565e68090d35aff1da8ea3ea SHA-1: 3c60bfd7364e6b101966d06da6a185a92c7081e2 SHA-256: fbf3a0d726f402335ffacc932d8ba16ed0b42c12bacc86e5cfaea9fdff52149f
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains numerous links, many pointing to a link farm hosted on Shopify, designed to obscure the ultimate destination. The primary malicious link, https://ttraff.com/pify?keyword=free+airplane+simulator+games+no, is identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'free airplane simulator games' and the malicious URL, indicating a lure to a potentially harmful site. No scripts were extracted, but the PDF structure and embedded links strongly suggest a phishing or redirection attack.

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=free+airplane+simulator+games+no
    • http://files.artimc.org/uploads/1/3/1/6/131606094/notokago_tosavanu.pdf
    • http://divinofe.solomonsknotcollective.com/uploads/1/3/0/7/130738850/papejufiviruxefemu.pdf
    • http://files.coolascucumbers.com/uploads/1/3/1/3/131382030/naloxo-zepujakogibip-jifiremotate-xozugalori.pdf
    • http://files.maostrap.com/uploads/1/3/1/8/131858661/2670889.pdf
    • http://saxepeniz.meanbaotoronto.com/uploads/1/3/1/0/131070420/rikizuzemaw_fulaxoluzogi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9232/9116/files/perubizukefomariguwuxul.pdf
    • https://cdn.shopify.com/s/files/1/0437/5370/1525/files/sedipodovumerug.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zafon.pdf
    • https://cdn.shopify.com/s/files/1/0429/8981/3909/files/nukixakefezatex.pdf
    • https://cdn.shopify.com/s/files/1/0430/4083/3690/files/pokikas.pdf
    • https://cdn.shopify.com/s/files/1/0430/9290/2037/files/gabegamezusedegopogisu.pdf
    • https://cdn.shopify.com/s/files/1/0445/6343/1588/files/muslim_school_calendar_2020_sri_lanka.pdf
    • https://cdn.shopify.com/s/files/1/0433/4603/4853/files/ronevudizogire.pdf
    • https://cdn.shopify.com/s/files/1/0435/6082/9087/files/bassaleg_estyn_report.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_off00006108.bin
2d2edd3ede794b92084aa52599bb03e3c648ff6c646d3155128a429a0a0244b6
pdf-font-stream PDF embedded font (sfnt) at offset 0x6108 5092 bytes
font_01_sfnt_off00007242.bin
bff040c08b4815bfc2d0552673ab3d30f64964fe4866b69cfc133c27d274ad14
pdf-font-stream PDF embedded font (sfnt) at offset 0x7242 10048 bytes