Malicious PDF — malware analysis report

Static analysis result for SHA-256 ded11a1c89962585…

MALICIOUS

PDF

42.8 KB Created: 2020-08-14 18:52:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47287fcc17fa2db08216c8b0c0e62a90 SHA-1: 0e7604fd57eb374808ac0efaa64dcc1b92a40f0e SHA-256: ded11a1c89962585a9b99b69c42411a18c044efd2694604a9c9cbe002efa935d
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 external resources. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely used to direct users to malicious content. The document body itself contains obfuscated text and references to the Edgar Allan Poe poem 'The Raven', likely as a lure. The presence of numerous links, including one to a malicious redirector, strongly suggests a phishing or social engineering attack aimed at driving traffic 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.cc/wb?keyword=edgar%20allan%20poe%20the%20raven%20pdf
    • http://files.heykennarae.com/uploads/1/3/1/1/131164260/rexifigejiw.pdf
    • http://files.stickysweetcupcakes.com/uploads/1/3/1/8/131856121/3f5b17ca27cff8.pdf
    • https://cdn.shopify.com/s/files/1/0431/1390/6333/files/adobe_lightroom_classic_cc_tutorial_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0432/6876/7907/files/riesgo_cardiovascular_framingham_2020_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0434/5161/3334/files/gadagipivasexe.pdf
    • https://cdn.shopify.com/s/files/1/0432/6552/3862/files/5205023043.pdf
    • https://cdn.shopify.com/s/files/1/0428/5746/3971/files/27674151968.pdf
    • https://cdn.shopify.com/s/files/1/0434/0521/3854/files/84378157342.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3098/files/83680781591.pdf
    • https://cdn.shopify.com/s/files/1/0435/4444/5092/files/semi_detailed_lesson_plan_in_english_for_high_school.pdf
    • https://cdn.shopify.com/s/files/1/0435/1157/8776/files/40857937018.pdf
    • https://cdn.shopify.com/s/files/1/0431/4460/9943/files/12820879301.pdf
    • https://cdn.shopify.com/s/files/1/0429/6874/4099/files/kututewerozet.pdf
    • https://cdn.shopify.com/s/files/1/0434/6016/5797/files/40839952081.pdf
    • https://cdn.shopify.com/s/files/1/0439/4034/8059/files/word_count_in_r.pdf
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/10772397660.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_off00006b65.bin
b07c37f1e6fc519a28ce0d89d1953498a3fc7931d5e948ebdcec30740ae0b478
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B65 5140 bytes
font_01_sfnt_off00007ce5.bin
35a97fd4c6dd32a66c43bcca953d8eee906145765814ef3509cdfe275b059651
pdf-font-stream PDF embedded font (sfnt) at offset 0x7CE5 9984 bytes