Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbafe75cad2a02e5…

MALICIOUS

PDF

37.2 KB Created: 2020-08-12 04:53:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a93205f9adde4f3f8fd59d32872119f SHA-1: 102a80cb2df0951b508e11ce191a96cc036f15e3 SHA-256: dbafe75cad2a02e5a1a3b72a25d2a327bc891f1b753b4247f8ec51f0e602ec33
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=administracion+financiera+pdf+pearson'. The document body contains garbled text but also includes the same URL, suggesting it's the primary lure. The presence of many links, including to potentially malicious domains, indicates an attempt to lead the user to harmful 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.com/pify?keyword=administracion+financiera+pdf+pearson
    • http://pupujanu.onthewayotw.com/uploads/1/3/0/8/130814328/1245471.pdf
    • http://files.strawberrymooncounselling.com/uploads/1/3/0/7/130740112/sogubovekeragaki.pdf
    • http://files.laurawilliamsskinbiz.com/uploads/1/3/0/9/130969580/zukitapijufafo.pdf
    • https://cdn.shopify.com/s/files/1/0438/0252/5856/files/doxidogepurofu.pdf
    • https://cdn.shopify.com/s/files/1/0429/2925/8649/files/fojegixumere.pdf
    • https://cdn.shopify.com/s/files/1/0428/2214/0063/files/lewobaderuveluvul.pdf
    • https://cdn.shopify.com/s/files/1/0430/2392/5402/files/mawebunevupazofavaxoxoga.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/93616534700.pdf
    • https://cdn.shopify.com/s/files/1/0440/9013/0584/files/california_fish_grill_nutrition.pdf
    • https://cdn.shopify.com/s/files/1/0431/7646/0447/files/bikini_body_recipe_guide.pdf
    • https://cdn.shopify.com/s/files/1/0429/8738/9087/files/prometheus_analyse.pdf
    • https://cdn.shopify.com/s/files/1/0430/3280/5527/files/powediruvaruxopikud.pdf
    • https://cdn.shopify.com/s/files/1/0435/9408/8616/files/detlef_schrempf_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000477e.bin
42e0370eede98f7096c5daa47509a7719f3cec8f09f1b10bfc0035beba86de69		 pdf-font-stream PDF embedded font (sfnt) at offset 0x477E 5048 bytes
font_01_sfnt_off0000587a.bin
4f751be5a956ec4e52235f5f351bf1f656bc3bac339a0eb27d759908589d2122		 pdf-font-stream PDF embedded font (sfnt) at offset 0x587A 9848 bytes
font_02_sfnt_off00007a2a.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A2A 4324 bytes

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