Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e43869f1bd04087…

MALICIOUS

PDF

33.7 KB Created: 2020-08-04 00:13:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d4623fb0fed9baa9c5c1100ed90be4d SHA-1: dd04812a6300987b7428396d013fcee5fbfc2691 SHA-256: 9e43869f1bd040877b6bb3f53c61ed51f11e7f1289da6b66f72d6be6d9b20dcd
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text suggesting a lure related to a 'classic fine food catalogue' and includes the malicious URL. The PDF_SEO_LINK_FARM heuristic also indicates a large number of external links, likely for SEO manipulation or to obscure the malicious destination.

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=classic+fine+food+catalogue+pdf
    • http://files.maevemccarthy.net/uploads/1/3/0/9/130969403/9117232.pdf
    • http://files.roykillen.com/uploads/1/3/1/4/131437949/woxivufamub-fefazobogofaxu-ragux.pdf
    • http://files.duhbuhlyoo.com/uploads/1/3/1/8/131871850/xeweludigokivor_risovimapake_rekuzigiluku_zigetovomi.pdf
    • http://files.krhphotography.com/uploads/1/3/1/4/131454040/vupixukimanoxo-metokodafojede-rawijesobiraxev.pdf
    • https://cdn.shopify.com/s/files/1/0433/9980/7126/files/debane.pdf
    • https://cdn.shopify.com/s/files/1/0430/5852/8405/files/rimunovulagedize.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wupukibasabozuxijixosi.pdf
    • https://cdn.shopify.com/s/files/1/0428/4160/4263/files/kanategoxo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29318048561.pdf
    • https://cdn.shopify.com/s/files/1/0432/2862/7108/files/nokit.pdf
    • https://cdn.shopify.com/s/files/1/0429/4216/9244/files/7490326432.pdf
    • https://cdn.shopify.com/s/files/1/0433/4069/3662/files/shell_shockers_hacks.pdf
    • https://cdn.shopify.com/s/files/1/0431/5031/1579/files/youtube_discord_webhook.pdf
    • https://cdn.shopify.com/s/files/1/0434/9958/5696/files/alliteration_assonance_onomatopoeia_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0435/2563/6248/files/kipewatupog.pdf
    • https://cdn.shopify.com/s/files/1/0438/3650/6272/files/skyrim_better_vampires.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nelafujadodejofit.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_off00004a2a.bin
e5f08585e5fa908a544e6dd384bc1642b05587936d8b3459d28f5cb82857e927
pdf-font-stream PDF embedded font (sfnt) at offset 0x4A2A 5132 bytes
font_01_sfnt_off00005bb6.bin
2edfef9057ece517a33ec5600a143685729c919679383efe77a0e9c433e53ed4
pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB6 8900 bytes