Malicious PDF — malware analysis report

Static analysis result for SHA-256 2eba58dfbf50b22d…

MALICIOUS

PDF

39.4 KB Created: 2020-08-23 06:06:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bbe84aed899b79e69410f53165caa9e0 SHA-1: 3ff8fe3c0638f0693a9e26c861d505f19a427ef3 SHA-256: 2eba58dfbf50b22d51a4be8d1c4609da1c938c9782d76de85eda549c647113ed
150 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector. The document body, though partially corrupted, contains text related to a movie guide and the malicious URL, suggesting a lure to trick users into visiting potentially harmful sites. The ML classifier strongly indicates maliciousness.

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=excision+movie+parents+guide
    • http://soseniwe.lifetimeepoxyfloors.com/uploads/1/3/0/7/130776321/0fb88f3881.pdf
    • http://kowula.darlingyoga.com/uploads/1/3/1/3/131379163/zivoru.pdf
    • https://cdn.shopify.com/s/files/1/0438/1189/7504/files/74100523935.pdf
    • https://cdn.shopify.com/s/files/1/0439/3598/9915/files/antony_hamilton_freedom.pdf
    • https://cdn.shopify.com/s/files/1/0438/1471/5549/files/define_basic_terms_in_applied_economics.pdf
    • https://cdn.shopify.com/s/files/1/0436/0408/2852/files/xodejesunujiwubegoxe.pdf
    • https://cdn.shopify.com/s/files/1/0429/2290/1663/files/organic_chemistry_john_mcmurry_9th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0431/8534/0580/files/fibevegusopakej.pdf
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/6431947703.pdf
    • https://cdn.shopify.com/s/files/1/0429/5639/0559/files/lawuzan.pdf
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/peptic_ulcer_disease_pathophysiology.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_off00005c1f.bin
f27088bb7be6c89a8d5f8678efefce16144a8d1e46682dd1dd28e09cbfe78887		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C1F 5448 bytes
font_01_sfnt_off00006e90.bin
af63773ea54c5d1a5e4b65e277f5e0f4b93a6e468b24d7e6ad40ee430487b3e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E90 10208 bytes

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