Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0d4e093ac4e1c4d…

MALICIOUS

PDF

42.3 KB Created: 2020-08-20 03:19:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90e28138559cab4ea71ee82155454112 SHA-1: 679692d54a3a7f0ddff6a061348009ebe97bc2b3 SHA-256: f0d4e093ac4e1c4d013b4bf7d69361ae2b0d1ea67f4f0a9c955da4a1adf2d5b9
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, and another flagged the document as a link farm. The embedded URLs suggest an attempt to direct users to potentially harmful content, likely for phishing or malware distribution.

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=que+es+el+botulismo+pdf
    • http://mumerali.losangeles-injurylawyers.com/uploads/1/3/0/7/130775934/5cc40.pdf
    • http://files.bkyogapsychotherapy.com/uploads/1/3/1/8/131857315/4048075.pdf
    • http://fodeti.nigelgorskiconsulting.co.uk/uploads/1/3/0/7/130775565/7805eb6002.pdf
    • https://cdn.shopify.com/s/files/1/0434/3080/5669/files/55841316841.pdf
    • https://cdn.shopify.com/s/files/1/0434/1720/6946/files/dusegitiragovuxuninax.pdf
    • https://cdn.shopify.com/s/files/1/0429/9456/5271/files/11204141914.pdf
    • https://cdn.shopify.com/s/files/1/0432/8695/4140/files/5283547427.pdf
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/fagufigumen.pdf
    • https://cdn.shopify.com/s/files/1/0434/4643/6006/files/58962619977.pdf
    • https://cdn.shopify.com/s/files/1/0427/8134/3900/files/31401980854.pdf
    • https://cdn.shopify.com/s/files/1/0433/2617/7438/files/anatomy_and_physiology_lab_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/9167/3763/files/vaxapogiripax.pdf
    • https://cdn.shopify.com/s/files/1/0432/7846/7238/files/72755515256.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_off0000665d.bin
1248f100fa82e46539e3de4d19b4a69095f514e17ff6fe9a8f0599808d384e0e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x665D 5080 bytes
font_01_sfnt_off0000778a.bin
05358f7f79ad8ffa0a797887affff6bc62906034ef965a79c2d99a77c7fcd25f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x778A 11124 bytes

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