Malicious PDF — malware analysis report

Static analysis result for SHA-256 8848993a896a57b2…

MALICIOUS

PDF

59.0 KB Created: 2020-08-08 19:32:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a7ad0fce2eaf695e8a610106321a361e SHA-1: 242611b5ed286501f701598426299211c12b59d0 SHA-256: 8848993a896a57b206cfee0ef8c0d939b5c4ccc59dd58e5e5d8acb47a168331b
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=genetically+modified+organisms+gmos+pdf', which is flagged as malicious. This suggests the document is part of a link farm or SEO poisoning campaign designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/pify?keyword=genetically+modified+organisms+gmos+pdf
    • http://suguvow.northcountryangler.com/uploads/1/3/1/1/131164239/6955637fe.pdf
    • http://files.deerlakesbands.org/uploads/1/3/1/3/131379692/jitetexo.pdf
    • http://files.garryportugal.com/uploads/1/3/1/0/131071067/tifajagemil_mejiveb_vagal_xomuxur.pdf
    • http://files.smilecommunicationsgroup.com/uploads/1/3/2/6/132681002/vebevemiru.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tuwaz.pdf
    • https://cdn.shopify.com/s/files/1/0430/3532/8663/files/lisujelulaxil.pdf
    • https://cdn.shopify.com/s/files/1/0430/9352/4637/files/razer.pdf
    • https://cdn.shopify.com/s/files/1/0441/2683/0744/files/shal_dorei_silk_farming.pdf
    • https://cdn.shopify.com/s/files/1/0431/3009/3728/files/52136586250.pdf
    • https://cdn.shopify.com/s/files/1/0437/1336/4121/files/tekapinetulajuzebepebumel.pdf
    • https://cdn.shopify.com/s/files/1/0439/0384/4520/files/venetinato.pdf
    • https://cdn.shopify.com/s/files/1/0430/1042/4985/files/13373716764.pdf
    • https://cdn.shopify.com/s/files/1/0427/8249/0791/files/11089887824.pdf
    • https://cdn.shopify.com/s/files/1/0436/7941/6473/files/max_in_java.pdf
    • https://cdn.shopify.com/s/files/1/0429/2499/8819/files/bajana_patalu_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0431/3012/6496/files/sowok.pdf
    • https://cdn.shopify.com/s/files/1/0432/6231/2611/files/ponukeregutex.pdf
    • https://cdn.shopify.com/s/files/1/0433/7650/9080/files/banking_syllabus_2020_download.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007b33.bin
459ffc276b11f1756f7b5db18586c57b24659eb1d42bf501ca7860e73d230f29		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B33 5396 bytes
font_01_sfnt_off00008d7d.bin
a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D7D 1800 bytes
font_02_sfnt_off0000960a.bin
f5738cedbfebe60c9a7f7766570cba341af9d2d39b744b815d080f3d6a393f5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x960A 11184 bytes
font_03_sfnt_off0000bb29.bin
3b1167557c0500c78008053c404847a906c4d495ef15adec583fc97e76626070		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBB29 16068 bytes
font_04_sfnt_off0000cfcb.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCFCB 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.