Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea93b6c9212a65b8…

MALICIOUS

PDF

38.0 KB Created: 2020-08-10 21:28:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8306ac645eb559d4d6789ea046bca3c7 SHA-1: 19d6b9e0b84cd419fb4c965539de9d54e2775d66 SHA-256: ea93b6c9212a65b86f777b6e7b92c4685acb5cbde93f967bca5109e3ba8561d6
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=como+beber+agua+de+mar+mariano+arnal+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with the first being 'https://cdn.shopify.com/s/files/1/0431/5827/4205/files/sovenubofawal.pdf'. The document body, though partially corrupted, contains text related to the malicious URL, suggesting a lure to trick users into clicking the link. No scripts were extracted from this sample.

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=como+beber+agua+de+mar+mariano+arnal+pdf
    • http://files.susannahsheffer.com/uploads/1/3/1/1/131163540/xeregoja-xezadupaligoma.pdf
    • http://files.draustinsaysso.com/uploads/1/3/0/7/130740158/koruwilomej-pirogukula-xewoziwe.pdf
    • http://files.thedinanschoolofballet.com/uploads/1/3/1/0/131069781/ef976d56471da.pdf
    • http://files.mswoodard.com/uploads/1/3/0/7/130775366/5449321.pdf
    • http://files.jpactm.org/uploads/1/3/1/3/131380292/3656343.pdf
    • https://cdn.shopify.com/s/files/1/0431/5827/4205/files/sovenubofawal.pdf
    • https://cdn.shopify.com/s/files/1/0436/2004/0866/files/ravuxitejedave.pdf
    • https://cdn.shopify.com/s/files/1/0429/8034/3967/files/system_analysis_and_design_full_notes.pdf
    • https://cdn.shopify.com/s/files/1/0436/4078/3008/files/45676544610.pdf
    • https://cdn.shopify.com/s/files/1/0431/0115/9585/files/45165958083.pdf
    • https://cdn.shopify.com/s/files/1/0433/1683/8558/files/56164832548.pdf
    • https://cdn.shopify.com/s/files/1/0428/2561/3468/files/8525506080.pdf
    • https://cdn.shopify.com/s/files/1/0431/5247/4267/files/16423172831.pdf
    • https://cdn.shopify.com/s/files/1/0429/8987/9445/files/tebenubirumomimejasud.pdf
    • https://cdn.shopify.com/s/files/1/0439/5198/0712/files/sajutenuduw.pdf
    • https://cdn.shopify.com/s/files/1/0434/4909/0200/files/soguzubenidiwebegop.pdf
    • https://cdn.shopify.com/s/files/1/0439/3353/2315/files/52270512952.pdf
    • https://cdn.shopify.com/s/files/1/0430/6409/8970/files/23446771915.pdf
    • https://cdn.shopify.com/s/files/1/0435/1465/8980/files/catan_cities_knights_rules.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/
    • https://cdn.shopify.com/s/files/1/0435/1465/8980/files/catan_cities_knights_rules

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000053be.bin
127594c73cceec5218e5235cfafae83a08ddf8ad1ffc67783bab5d9963954155
pdf-font-stream PDF embedded font (sfnt) at offset 0x53BE 5228 bytes
font_01_sfnt_off0000656b.bin
9e277b769016691464507785fb9920b6a3853859163ee638d1506733a5378edf
pdf-font-stream PDF embedded font (sfnt) at offset 0x656B 10968 bytes