Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d71a1dca15f0481…

MALICIOUS

PDF

47.0 KB Created: 2020-08-18 15:15:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d55f41b1149635f3092dd3c68a9072b6 SHA-1: ee1136b5c42c4b42f684d7be24aad1f933e7a537 SHA-256: 2d71a1dca15f0481cfc32b527ff2360e36801baa8370c4273b5c9b613e09d019
152 Risk Score

Malware Insights

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

The PDF document contains embedded links, one of which, 'https://ttraff.cc/pify?keyword=supersu+root+guide', is identified as a malicious redirector. The document body, though partially corrupted, contains text referencing 'Supersu root guide' and the authoring application, suggesting a lure to download potentially harmful content. The presence of numerous other links to Shopify, while benign, contributes to a link farm pattern, potentially for SEO manipulation or to obscure the malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=supersu+root+guide
    • http://files.scheffsound.com/uploads/1/3/1/4/131406403/konefomibuma-vitujeguka-mejuwexuvoxavo.pdf
    • http://files.northstarlodge167.org/uploads/1/3/0/7/130775346/nikasirapuravan-jofofak-nimer.pdf
    • http://files.moshathestylist.com/uploads/1/3/1/1/131164048/sevarepanuku.pdf
    • https://cdn.shopify.com/s/files/1/0438/0921/0529/files/chemistry_a_molecular_approach_3rd_edition_online.pdf
    • https://cdn.shopify.com/s/files/1/0431/5352/2850/files/mevedigeraritefukufav.pdf
    • https://cdn.shopify.com/s/files/1/0435/2406/3392/files/72931206952.pdf
    • https://cdn.shopify.com/s/files/1/0429/8915/8554/files/ecological_economics_herman_daly.pdf
    • https://cdn.shopify.com/s/files/1/0432/8436/5468/files/lujewi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kopamidije.pdf
    • https://cdn.shopify.com/s/files/1/0430/7025/9357/files/51091546654.pdf
    • https://cdn.shopify.com/s/files/1/0430/1357/0709/files/90192407036.pdf
    • https://cdn.shopify.com/s/files/1/0433/1202/1657/files/94000066602.pdf
    • https://cdn.shopify.com/s/files/1/0441/0186/1528/files/pudotiguzidipolafapido.pdf
    • https://cdn.shopify.com/s/files/1/0437/6897/1415/files/67655131089.pdf
    • https://cdn.shopify.com/s/files/1/0437/7824/4765/files/brown_bear_what_do_you_see_book.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_off00006d6e.bin
e0e3f37861c822a021ed71fd6b6bdf230914dbc58c4f159ed87f45639703eec6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D6E 4764 bytes
font_01_sfnt_off00007dae.bin
4d027b7ac41a335344dbe9a73183dd3d6b4f6df0ace60940c302d0aa96ad25a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DAE 10344 bytes
font_02_sfnt_off0000a10b.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA10B 4324 bytes

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