Malicious PDF — malware analysis report

Static analysis result for SHA-256 26c573e7901caa94…

MALICIOUS

PDF

45.4 KB Created: 2020-08-09 16:22:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 72b28e5f455fe5cb43f74bec2e028d0d SHA-1: eb4badbd69116e40b858f7ba56464e175216ad12 SHA-256: 26c573e7901caa943c0c404593a6a6348b86a76c972c2c6d6516b7dbd98a5c56
120 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The document body text, though partially corrupted, includes the URL https://ttraff.com/pify?keyword=battle+royale+manga+pdf+espa%25C3%25B1ol, suggesting a social engineering lure related to manga content. No scripts were extracted from this sample, and the primary malicious activity observed is the redirection to a potentially harmful URL.

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=battle+royale+manga+pdf+espa%25C3%25B1ol
    • http://files.blacklakepreservationsociety.org/uploads/1/3/0/7/130739387/4108974.pdf
    • http://files.harrisendofthetrailranch.com/uploads/1/3/1/4/131407802/1987111.pdf
    • http://nifobu.samkaestner.com/uploads/1/3/0/7/130775403/rodifevakofawekuxama.pdf
    • http://files.nataliavidyakina.com/uploads/1/3/1/4/131454719/99ab18.pdf
    • https://cdn.shopify.com/s/files/1/0439/2108/0475/files/eicar_test.pdf
    • https://cdn.shopify.com/s/files/1/0432/1663/4016/files/rukuwitubopawogav.pdf
    • https://cdn.shopify.com/s/files/1/0430/3015/1330/files/41623421144.pdf
    • https://cdn.shopify.com/s/files/1/0432/3088/8103/files/ancient_history_ncert_class_11.pdf
    • https://cdn.shopify.com/s/files/1/0436/8121/8710/files/jofasegotowimuf.pdf
    • https://cdn.shopify.com/s/files/1/0437/1903/2987/files/vuvemedixulovijabofore.pdf
    • https://cdn.shopify.com/s/files/1/0436/4828/6880/files/fonuzomewag.pdf
    • https://cdn.shopify.com/s/files/1/0431/6584/3620/files/hamachi_network_adapter_error.pdf
    • https://cdn.shopify.com/s/files/1/0434/2287/5800/files/non_alcoholic_liver_disease.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dovaxetudomorunuk.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_off000063a3.bin
facd0387dfda5e1fd0f01893569d245f78557bd4d321ffd4c44380dfc738c427		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63A3 5464 bytes
font_01_sfnt_off000075e5.bin
0e2e5de6ffec5dfda3e56bef8f4293cd13d031f96bed2d3019f1ccf54cf18694		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75E5 10120 bytes
font_02_sfnt_off00009885.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9885 4324 bytes

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