Malicious PDF — malware analysis report

Static analysis result for SHA-256 21e48d60e3df8796…

MALICIOUS

PDF

48.9 KB Created: 2020-08-10 03:55:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95be7c0077c4863ba45fcfc066ce0edf SHA-1: 2d0ff21d1f438e596436fb36c2652b08af42c9cd SHA-256: 21e48d60e3df87962174df940a3f8a0f68d5765db28a20ef256895055bf925c8
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary link pointing to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=face+recognition+history+pdf', indicating a lure to a potentially malicious site. The presence of numerous links to shopify.com and other domains suggests an attempt to create SEO spam or a link farm to obscure the malicious redirector.

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=face+recognition+history+pdf
    • http://files.destyinvestments.com/uploads/1/3/2/6/132681863/837498.pdf
    • http://files.jakebelvin.com/uploads/1/3/0/7/130775518/jegiraridalapu.pdf
    • http://files.bellafurworks.com/uploads/1/3/1/8/131856381/duguvat.pdf
    • https://cdn.shopify.com/s/files/1/0431/3461/5708/files/87088387474.pdf
    • https://cdn.shopify.com/s/files/1/0433/8617/5651/files/pdf_to_rtf.pdf
    • https://cdn.shopify.com/s/files/1/0437/3794/0133/files/garonariliw.pdf
    • https://cdn.shopify.com/s/files/1/0448/5106/9085/files/adapting_to_climate_change.pdf
    • https://cdn.shopify.com/s/files/1/0432/3681/9104/files/kuxegemepasuxuwex.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/22511335110.pdf
    • https://cdn.shopify.com/s/files/1/0435/0866/2440/files/dwarf_fortress_teleport.pdf
    • https://cdn.shopify.com/s/files/1/0431/9395/8560/files/vobonigudenebenixa.pdf
    • https://cdn.shopify.com/s/files/1/0429/5039/4019/files/ruwilexepis.pdf
    • https://cdn.shopify.com/s/files/1/0438/5452/8677/files/24633679908.pdf
    • https://cdn.shopify.com/s/files/1/0432/3675/3570/files/mipebanisiwibewegomazol.pdf
    • https://cdn.shopify.com/s/files/1/0430/0704/9887/files/walmart_grant_login.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_off00006a37.bin
b8615deadfaf107970da829645dc6b00aa959bc1236455cdfdb5fa3361a2f138		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A37 5444 bytes
font_01_sfnt_off00007cb9.bin
a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CB9 1800 bytes
font_02_sfnt_off00008546.bin
97232693de16ccdf536a85b864467aecb3d4bdb677dc53c146a78d86cb87e9cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8546 15688 bytes

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