Malicious PDF — malware analysis report

Static analysis result for SHA-256 32118a8fe17de466…

MALICIOUS

PDF

37.9 KB Created: 2020-08-03 19:59:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7bcf9054bdfea3218726e55177ac2906 SHA-1: e202dcdc960bf13d626b7ec7d131a553531fcba5 SHA-256: 32118a8fe17de4667745cea4eb42c353feaa230cdb81ce7be0019769aa948bfe
120 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 firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text suggesting a lure for a free download, which aligns with the malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=stoner+john+williams+pdf+free+download, which likely serves as the initial point of compromise.

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=stoner+john+williams+pdf+free+download
    • http://files.euro-hanger.com/uploads/1/3/0/8/130874146/jugolu.pdf
    • http://files.drycreekgeneralstore1881.com/uploads/1/3/0/7/130739533/babejezapupov-duzegiretogu-zimopikazo.pdf
    • http://files.insightcounselingc.com/uploads/1/3/1/4/131438680/befupe.pdf
    • http://files.carolinasiscebs.com/uploads/1/3/2/6/132683154/9971840.pdf
    • https://cdn.shopify.com/s/files/1/0434/2090/9735/files/50350676195.pdf
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/windows_media_player_plugins.pdf
    • https://cdn.shopify.com/s/files/1/0434/0298/5622/files/25036796412.pdf
    • https://cdn.shopify.com/s/files/1/0430/7035/7653/files/79617191613.pdf
    • https://cdn.shopify.com/s/files/1/0434/6154/2054/files/onan_microlite_4000.pdf
    • https://cdn.shopify.com/s/files/1/0434/8359/4909/files/lidugoremigaze.pdf
    • https://cdn.shopify.com/s/files/1/0437/0841/6165/files/direct_tv_redeem.pdf
    • https://cdn.shopify.com/s/files/1/0434/2539/8945/files/jerixanajimopupisafinunux.pdf
    • https://cdn.shopify.com/s/files/1/0438/5262/8118/files/2246332070.pdf
    • https://cdn.shopify.com/s/files/1/0432/8452/9310/files/dozalekavafazen.pdf
    • https://cdn.shopify.com/s/files/1/0431/5214/6586/files/34224821128.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_off00004f9e.bin
b75d4674ee7f385c597889890b4cfcec10a8fcba9dbed2b8523d31c769d42cd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F9E 5552 bytes
font_01_sfnt_off0000626b.bin
870c4e00cef94536127684d14ddf00d0ebe1916673ac862c4e4f885574d581ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x626B 12596 bytes

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