Malicious PDF — malware analysis report

Static analysis result for SHA-256 9752f722489c0550…

MALICIOUS

PDF

41.9 KB Created: 2020-08-20 13:16:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 964675eef383a6a685489a03f859b2f9 SHA-1: 13c0ba7645430e801ad04a8afe47869dfc639661 SHA-256: 9752f722489c055084ffefbb19c009d5978965eadaada68dbb1349f004aa17e6
120 Risk Score

Malware Insights

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

The PDF document contains a link farm, with the primary malicious redirector URL being https://ttraff.ru/pify?keyword=blended+retirement+system+opt+in+answers. This suggests a phishing or scam attempt, leveraging SEO tactics to distribute malicious content. The document body itself is heavily obfuscated but contains references to the blended retirement system and the malicious URLs.

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=blended+retirement+system+opt+in+answers
    • http://mekapur.sabahmethodist.org/uploads/1/3/1/3/131398020/lesapeporezumib.pdf
    • http://lirul.centralflagd.com/uploads/1/3/1/3/131397987/bodiledo-zogojelu-lenabimugeka-dujuneberapazu.pdf
    • http://fogetuvi.lauriesdance.com/uploads/1/3/1/3/131380344/luwir.pdf
    • https://cdn.shopify.com/s/files/1/0427/7560/9510/files/59384116782.pdf
    • https://cdn.shopify.com/s/files/1/0430/7245/4810/files/eclipse_ide_for_linux.pdf
    • https://cdn.shopify.com/s/files/1/0435/6790/6979/files/givagawivuwetoworogalug.pdf
    • https://cdn.shopify.com/s/files/1/0438/3775/1456/files/33149822365.pdf
    • https://cdn.shopify.com/s/files/1/0431/6938/2568/files/domobirani.pdf
    • https://cdn.shopify.com/s/files/1/0461/0975/3507/files/gameboy_advance_emulator_mac_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/3684/3933/files/6361828297.pdf
    • https://cdn.shopify.com/s/files/1/0434/4440/4374/files/widarakonumikinubito.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_off0000668c.bin
fb97900c1ab6b72f60d3135b1191b45265643216bde43bdefdd25b8329105c6a
pdf-font-stream PDF embedded font (sfnt) at offset 0x668C 5348 bytes
font_01_sfnt_off000078b6.bin
855c846c10e632f794e84493599082008785b336eb44175ced27ed62936de774
pdf-font-stream PDF embedded font (sfnt) at offset 0x78B6 10024 bytes