Malicious PDF — malware analysis report

Static analysis result for SHA-256 96c0bf0be6f0ecc1…

MALICIOUS

PDF

48.2 KB Created: 2020-08-19 21:16:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 580d3ea4e84d98bc1b619f5d0a35483e SHA-1: 6e9f9e6d6f35f9962aaf360b80bc360604c3bf51 SHA-256: 96c0bf0be6f0ecc1d4e9dfffe06d8795fcf5909bfda64c78d077c038476edd1b
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, with a critical heuristic firing indicating a PDF link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to an 'adaptability test in air force pdf' and includes the malicious redirector URL. This suggests the document is designed to trick users into clicking through to a malicious site, 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.com/pify?keyword=adaptability+test+in+air+force+pdf
    • http://tupigixe.ruchschool.org/uploads/1/3/1/4/131437130/pipikuba.pdf
    • https://cdn.shopify.com/s/files/1/0435/2802/8312/files/nunawul.pdf
    • https://cdn.shopify.com/s/files/1/0450/3358/6838/files/brand_guidelines_template.pdf
    • https://cdn.shopify.com/s/files/1/0430/1737/1797/files/talazolanuperedepiwokal.pdf
    • https://cdn.shopify.com/s/files/1/0431/1518/4277/files/73398748372.pdf
    • https://cdn.shopify.com/s/files/1/0430/5122/1146/files/riroges.pdf
    • https://cdn.shopify.com/s/files/1/0431/9966/0194/files/jekobeworawotosuganapatem.pdf
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/fufopulosusow.pdf
    • https://cdn.shopify.com/s/files/1/0431/3333/7768/files/mezed.pdf
    • https://cdn.shopify.com/s/files/1/0432/7473/1685/files/76466028936.pdf
    • https://cdn.shopify.com/s/files/1/0431/3749/9302/files/20643599095.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_off000074d5.bin
7be8ecd7fbf4fdd9fc0d73d461124caa3bce487e038d4a630e68f13604c238bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74D5 5380 bytes
font_01_sfnt_off0000872b.bin
1e4fc9dae42fde2c8a6384bd5837f89cee906154298a7de7610aa7b1ad48c21c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x872B 14700 bytes

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