Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8eb2cdeaf6fa0cf…

MALICIOUS

PDF

40.3 KB Created: 2020-08-04 04:28:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 607311ebd2222627b907ddd758fc5f6f SHA-1: fc37e7d040c002731258dbc477b34474e4dc07cd SHA-256: d8eb2cdeaf6fa0cfbb5c1f17c81abad2088d4adaa56631b5911974eac4fc3e5e
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to malicious infrastructure. The document body, though heavily obfuscated, contains text related to 'Mcdonald s menu with prices sa pdf' and includes the malicious URL. This suggests a phishing lure, attempting to trick users into visiting the redirector which likely leads to further malicious content. The PDF_SEO_LINK_FARM heuristic also indicates a large number of outbound links, further supporting a distribution or redirection scheme.

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.ru/pify?keyword=mcdonald+s+menu+with+prices+sa+pdf
    • http://files.thecandyshopprints.com/uploads/1/3/1/6/131637147/1162273.pdf
    • http://files.healthycleaningsolutions.com/uploads/1/3/0/7/130740033/juxiga_tadekijakatuki_fiwobovoweme.pdf
    • http://files.allergyclinicmalta.com/uploads/1/3/0/7/130776542/5819618.pdf
    • https://cdn.shopify.com/s/files/1/0434/7976/1061/files/pakepaxamelema.pdf
    • https://cdn.shopify.com/s/files/1/0436/4877/8400/files/71256840208.pdf
    • https://cdn.shopify.com/s/files/1/0432/8544/6824/files/75507218240.pdf
    • https://cdn.shopify.com/s/files/1/0429/9292/6883/files/gelofifeworikul.pdf
    • https://cdn.shopify.com/s/files/1/0438/4676/2656/files/lelelew.pdf
    • https://cdn.shopify.com/s/files/1/0435/4444/5092/files/weight_watchers_simple_start_menu.pdf
    • https://cdn.shopify.com/s/files/1/0430/7252/0352/files/topozalekaguzutewizaguwe.pdf
    • https://cdn.shopify.com/s/files/1/0432/0821/2638/files/lolalopezujowatufeb.pdf
    • https://cdn.shopify.com/s/files/1/0430/8166/2628/files/wapixawegonurowas.pdf
    • https://cdn.shopify.com/s/files/1/0431/8828/9694/files/95009732732.pdf
    • https://cdn.shopify.com/s/files/1/0437/1539/5738/files/turn_list_into_dataframe_r.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_off00005e1a.bin
154ef3a60dc34d6be4c7ddebbfbc04f850266b4445f2a8368466af6d4a8a2025		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E1A 5492 bytes
font_01_sfnt_off000070b9.bin
91613f0d1866f3a4051f02bdd2b7f43a4cc04af79255bb7142e2bf014ab63e27		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70B9 10524 bytes

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