Malicious PDF — malware analysis report

Static analysis result for SHA-256 98d0fb27fd897538…

MALICIOUS

PDF

60.9 KB Created: 2020-09-02 04:25:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e9d1abb7e0be5e65e9f47407b19c7e7 SHA-1: 9511a21f4a97712082247d1b41a695fb01dca3ac SHA-256: 98d0fb27fd8975385b8a72e4ae2ad62de5c7a0bd88f403ec3d6920e2b3879f8e
120 Risk Score

Malware Insights

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

The PDF contains a link that directs to a known malicious redirector, disguised with a movie title. This suggests a phishing or social engineering attack. The PDF also contains a large number of links to benign Shopify domains, likely part of an SEO spam campaign to improve the ranking of the malicious redirector. No scripts were extracted, limiting the analysis of direct payload delivery.

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/wix?keyword=after+the+sunset+movie
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/gate_electronics_and_communication_engineering_books.pdf
    • https://cdn.shopify.com/s/files/1/0434/1828/8284/files/62678725855.pdf
    • https://cdn.shopify.com/s/files/1/0432/3937/5012/files/mogumitifugexenolinowelu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/bjt_dc_analysis.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lewajoranuputefikilos.pdf
    • https://cdn.shopify.com/s/files/1/0433/5045/8526/files/cantata_one_regular_font.pdf
    • https://cdn.shopify.com/s/files/1/0434/3450/8455/files/agrarian_reform_history_in_the_philippines.pdf
    • https://cdn.shopify.com/s/files/1/0434/2058/2050/files/31944602830.pdf
    • https://cdn.shopify.com/s/files/1/0432/7840/1700/files/gmu_neuroscience_advising_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0448/0742/2109/files/lufofopawilaki.pdf
    • https://cdn.shopify.com/s/files/1/0429/6838/3642/files/you_are_the_reason_piano.pdf
    • https://cdn.shopify.com/s/files/1/0435/0610/6528/files/1903516116.pdf
    • https://cdn.shopify.com/s/files/1/0430/8166/2628/files/fevuxelobolomafa.pdf
    • https://cdn.shopify.com/s/files/1/0433/5045/8520/files/beatles_complete_scores.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ce8.bin
fe0d6e49c08f3fe1bd0627528820142ff906c8ce8422c4a733145cf9e4d64452		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CE8 27288 bytes
font_01_sfnt_off0000b26a.bin
c5557c0496c40efce8b21eeeb1f10807cc94ae9820e7f293c9c586ad63bb5d07		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB26A 4816 bytes
font_02_sfnt_off0000c2ab.bin
aa45abb379c55a8ca3651b7ea838b66f7b38c3db9896a72824a043034ec7f273		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC2AB 10540 bytes

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