Malicious PDF — malware analysis report

Static analysis result for SHA-256 8afd8b174cf66e83…

MALICIOUS

PDF

63.1 KB Created: 2020-09-21 08:39:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c3c679f947dff39d8f33b4ac4f1744b SHA-1: 2d4699620fb874a191203520f6b9f95f303824b5 SHA-256: 8afd8b174cf66e839c987ccc57de9462078d6002f4bc7e285e05c424e6e97fa4
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a large number of external links, indicating a link farm designed to manipulate search engine results or distribute malicious content. One critical heuristic identified a link to known malicious redirector infrastructure. The embedded URL 'https://ttraff.link/wix?keyword=theseus+greek+mythology+summary' is likely the initial lure, redirecting to further malicious sites.

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.link/wix?keyword=theseus+greek+mythology+summary
    • http://files.majortomwithpinkcrows.com/uploads/1/3/1/3/131378918/likana.pdf
    • http://juxafok.hudsonvalleycasting.com/uploads/1/3/1/0/131070146/2215620.pdf
    • http://files.irishsetter.is/uploads/1/3/0/7/130739059/5001898.pdf
    • http://xigulog.johnpiperwatercolours.com/uploads/1/3/0/8/130874285/bakajiniragapa.pdf
    • http://files.paulsfranchiseleague.com/uploads/1/3/1/4/131438249/kabuvoxije_kuvorenuzixuw_raxejusub.pdf
    • http://gejuxajes.jillianabbott.com/uploads/1/3/1/4/131437850/junebifoka.pdf
    • http://piziruli.sethallenyoungphd.com/uploads/1/3/2/8/132814718/9912070.pdf
    • http://files.caitlinamycreates.com/uploads/1/3/2/7/132740965/5233743.pdf
    • http://bexemeze.elocruz.net/uploads/1/3/0/7/130775692/sexane_zopurasur_divotazulotufos.pdf
    • https://d1ac89f9-5459-4daf-99a0-6d36ef5e3e2d.filesusr.com/ugd/26481d_472a78fcdca941808a9ddad50b76d735.pdf?index=true
    • https://b316f3f8-b2e7-470e-97b4-a04f5282a33d.filesusr.com/ugd/735189_716d45951ce2432aa7031933d5b5f4f7.pdf?index=true
    • https://9f0d76db-421c-4eb1-96eb-a18efbfe2ad7.filesusr.com/ugd/d2751c_f3550c1d97d741f695784cbc59a21599.pdf?index=true
    • https://eef1befb-bc3e-4fdb-bdcc-611811cc1cc5.filesusr.com/ugd/ea2c45_dfcce7f67f6647a9b1f36fe6caa61346.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0462/2470/3642/files/xikotexuwilorakoviro.pdf
    • https://cdn.shopify.com/s/files/1/0430/7212/7125/files/causes_of_the_great_depression_apush.pdf
    • https://cdn.shopify.com/s/files/1/0437/9744/6816/files/78930247525.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_off0000b368.bin
f1cf4c7cdc0d0bf6367f5c174ac321225f6f63c6ee83271d7c1f47b54643e2fb
pdf-font-stream PDF embedded font (sfnt) at offset 0xB368 5212 bytes
font_01_sfnt_off0000c501.bin
1094b2118c66b27ac894d5fbddd20c666366b4d7d7b370fcbc2e7ce3f873b82c
pdf-font-stream PDF embedded font (sfnt) at offset 0xC501 12880 bytes