Malicious PDF — malware analysis report

Static analysis result for SHA-256 e41924adfb9fd717…

MALICIOUS

PDF

43.7 KB Created: 2020-08-21 22:06:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9ec233dd74aea08e417e76ede6c01533 SHA-1: 86d3172672ac644e0dd65b3a33063c23e9738cb7 SHA-256: e41924adfb9fd717a1f9bf39d2430eb31aebc9a8eb1ff7c8cf1d6c81d42a284f
150 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though partially corrupted, contains a URL that matches the malicious redirector. The primary malicious link is 'https://ttraff.cc/pify?keyword=buy+metformin+for+pcos+uk', which is designed to redirect users to potentially harmful content. The presence of a large number of external links, many hosted on shopify.com, suggests a link farm used for SEO poisoning or to obscure the final malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=buy+metformin+for+pcos+uk
    • http://files.bradylarsonart.com/uploads/1/3/1/8/131872238/xojeterabosaji.pdf
    • http://files.tenterdenclt.org/uploads/1/3/1/6/131637037/mekev-xevikokonum.pdf
    • https://cdn.shopify.com/s/files/1/0437/8565/0325/files/arcore_android_studio_sample.pdf
    • https://cdn.shopify.com/s/files/1/0430/9653/9290/files/pathogenesis_of_hepatitis_c.pdf
    • https://cdn.shopify.com/s/files/1/0436/4002/9344/files/xozogovovudabosanuge.pdf
    • https://cdn.shopify.com/s/files/1/0431/1059/6765/files/25349273328.pdf
    • https://cdn.shopify.com/s/files/1/0428/9229/6359/files/coffee_break_french.pdf
    • https://cdn.shopify.com/s/files/1/0433/0792/5654/files/45573726844.pdf
    • https://cdn.shopify.com/s/files/1/0432/4625/6295/files/zofotajom.pdf
    • https://cdn.shopify.com/s/files/1/0432/0005/3408/files/gomenolipolevexi.pdf
    • https://cdn.shopify.com/s/files/1/0428/8361/2831/files/durafolu.pdf
    • https://cdn.shopify.com/s/files/1/0428/3134/7868/files/gapejasiwidaneziwijuvusor.pdf
    • https://cdn.shopify.com/s/files/1/0431/3494/3388/files/zowot.pdf
    • https://cdn.shopify.com/s/files/1/0434/2346/5623/files/32247739091.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_off000068a6.bin
d2b845d37b0a5329f7afdc17b7f547abce8db29c1349cf0b3c51a890e7dcee17		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68A6 5136 bytes
font_01_sfnt_off00007a1e.bin
4645c2779bccd2e1539705c20a9788d1ecbb622a3eee4ff818cf2d8efb34165c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A1E 11732 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.