Malicious PDF — malware analysis report

Static analysis result for SHA-256 fec1e913fe155de4…

MALICIOUS

PDF

44.9 KB Created: 2020-08-08 19:27:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e605d6b74c3ce4b1799442fdbf1726e SHA-1: ccba4f3c397409c850117a01623f2e9e5b8ae3e7 SHA-256: fec1e913fe155de4c97f9d4b553e91fb68b28e25cfedaaeba73cb14cc0e4ed56
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains references to URLs that are likely part of a link farm designed to attract traffic. The primary malicious URL identified is ttraff.ru, which is known to host redirectors. The presence of numerous links, including one pointing to a potentially malicious redirector, indicates an attempt to direct users to harmful content.

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=madeline+bemelmans+pdf
    • http://butelivi.charmedbordercollies.com/uploads/1/3/0/8/130814297/vumomeno.pdf
    • http://files.chenowethbairddesign.com/uploads/1/3/1/8/131871894/kawal_fudomur.pdf
    • http://setezi.viktoraskubaitis.com/uploads/1/3/0/9/130969592/vuzizisalidif_nurasoza_zowigites_zelafexuxonizi.pdf
    • http://files.systinvest.com/uploads/1/3/0/8/130874567/96f33c.pdf
    • https://cdn.shopify.com/s/files/1/0435/9910/2115/files/great_are_you_lord_chords_e.pdf
    • https://cdn.shopify.com/s/files/1/0439/9883/8942/files/pogibanedowunipegar.pdf
    • https://cdn.shopify.com/s/files/1/0431/4628/1121/files/pdf_password_cracker_software.pdf
    • https://cdn.shopify.com/s/files/1/0437/5855/1189/files/kunawunatumuxaxa.pdf
    • https://cdn.shopify.com/s/files/1/0429/2981/5705/files/minagusapikudi.pdf
    • https://cdn.shopify.com/s/files/1/0435/9441/6290/files/aura_by_carlos_fuentes_english.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/37278413385.pdf
    • https://cdn.shopify.com/s/files/1/0431/5827/4205/files/24428751619.pdf
    • https://cdn.shopify.com/s/files/1/0437/1018/5637/files/strengthening_families_program.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/11783771814.pdf
    • https://cdn.shopify.com/s/files/1/0437/0612/2393/files/internationalization_in_java.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_off000072e9.bin
53c3dea9314acb1c7b03420cc5816a8bf9a80f88e5d85163e95d0b9cf7e537f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72E9 5236 bytes
font_01_sfnt_off000084af.bin
afcaab927b624f1cbbff99e1c066259f7aba3fd338cdab43de8a25b6dc0162e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84AF 9992 bytes

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