Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3151322f38c1de9…

MALICIOUS

PDF

43.3 KB Created: 2020-08-24 11:42:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 884c5d0c9a0255d90bd9a654950c19b5 SHA-1: d0b9a99e18b14fafb9040dc5d76375dc54bc5435 SHA-256: f3151322f38c1de9fd2bf1f2f5156fccec204bce1d65fe239eab9c36e0bea985
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as legitimate PDF downloads, but one of the primary links redirects to a known malicious domain. The document body itself is heavily obfuscated and contains the malicious URL, suggesting it's part of a lure to drive traffic to 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.ru/pify?keyword=advanced+algorithm+design+and+analysis+pdf
    • http://namow.confidentlyready.com/uploads/1/3/1/0/131069991/86ec7.pdf
    • https://cdn.shopify.com/s/files/1/0440/5755/9190/files/guia_ceneval_psicologia.pdf
    • https://cdn.shopify.com/s/files/1/0435/6734/9923/files/anhui_conch_cement_annual_report_2016.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xefafozerokadugatevaru.pdf
    • https://cdn.shopify.com/s/files/1/0429/9161/6153/files/60238155154.pdf
    • https://cdn.shopify.com/s/files/1/0429/0537/0787/files/9519315697.pdf
    • https://cdn.shopify.com/s/files/1/0428/6581/9814/files/calendario_con_numero_settimane_2019.pdf
    • https://cdn.shopify.com/s/files/1/0429/1048/2588/files/24819659916.pdf
    • https://cdn.shopify.com/s/files/1/0438/1461/7250/files/dubopoxu.pdf
    • https://cdn.shopify.com/s/files/1/0428/8865/9100/files/autoestima_articulos_de_psicologia.pdf
    • https://cdn.shopify.com/s/files/1/0433/3728/5797/files/omegle_similar_android.pdf
    • https://cdn.shopify.com/s/files/1/0435/3464/7445/files/73117741372.pdf
    • https://cdn.shopify.com/s/files/1/0434/0210/0886/files/74054005018.pdf
    • https://cdn.shopify.com/s/files/1/0465/5028/6494/files/7836590825.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_off000069a5.bin
f589033e9a63fddbba81c5f03dda6ee9acd328ad246156ee9024d234efb8a981		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69A5 5720 bytes
font_01_sfnt_off00007d00.bin
620c51953c3659bd6ef97e34052c4588c165133c551267d8b05cc52a7e30e4d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D00 10404 bytes

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