Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ed60865f360286c…

MALICIOUS

PDF

39.4 KB Created: 2020-08-22 12:37:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 957131daa6394f5382a81ed3bba01ae9 SHA-1: 0c41ef9e90ff956fa8422795b5f05e57c591c0de SHA-256: 2ed60865f360286c75f2af35e851f2a00113b768a9e24dcfe9bfa327921546ac
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=the+lumineers+ophelia+piano+sheet+music'. This URL is embedded within the document body, disguised as a search result for piano sheet music. The document also exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify domains, but the primary malicious intent appears to be the redirector. No scripts were extracted from this sample.

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=the+lumineers+ophelia+piano+sheet+music
    • http://files.lindsayxiongdesign.com/uploads/1/3/1/4/131438459/wufukeneza_pikagowofo_pulamivubuvut.pdf
    • http://files.karleneblandfineart.com/uploads/1/3/0/7/130776451/jekewalivumetek_benowapedaxo.pdf
    • http://nijozebuj.lawsmosis.com/uploads/1/3/2/3/132303072/kisanig_fexesad_vilobosu_luwazifudarik.pdf
    • https://cdn.shopify.com/s/files/1/0431/2124/6359/files/18134472268.pdf
    • https://cdn.shopify.com/s/files/1/0429/8778/2297/files/vofuvinodedelejexaxizone.pdf
    • https://cdn.shopify.com/s/files/1/0437/7441/0910/files/90525186408.pdf
    • https://cdn.shopify.com/s/files/1/0430/5308/8919/files/aging_process_definition.pdf
    • https://cdn.shopify.com/s/files/1/0437/8283/2280/files/lufaj.pdf
    • https://cdn.shopify.com/s/files/1/0451/9713/1925/files/business_process_modeling_book.pdf
    • https://cdn.shopify.com/s/files/1/0429/0953/2323/files/pojuwoxiwuporelotigovoj.pdf
    • https://cdn.shopify.com/s/files/1/0434/5669/2390/files/political_ideology_quiz_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0430/7818/9205/files/84850270216.pdf
    • https://cdn.shopify.com/s/files/1/0428/6241/1942/files/11521442069.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_off00004ead.bin
abb3dbbc81ae60a0e4f8f11a46bc5eaa16ca0fe01a0a34c2ae38cd074cbbd539		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4EAD 5124 bytes
font_01_sfnt_off00005fec.bin
5d2a3e242322c85d7c6f8215e307b6f0314df44ccb8872f39f02d0964f7683f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FEC 15696 bytes

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