Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d40f4ef77dd8620…

MALICIOUS

PDF

79.8 KB Created: 2020-07-28 05:39:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 55fecd503e51a61153e66d7bb67ec007 SHA-1: 87f135bd53848ed43289508e903bb2c374f42529 SHA-256: 1d40f4ef77dd8620cb4bbc82478c22295b180a00ee19775a145e00977d04bf6b
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure, specifically 'ttraff.cc'. The document body, though heavily obfuscated, appears to contain text related to 'American tv guide listings denver co', likely a lure. The presence of numerous external links suggests an attempt to redirect users to potentially malicious sites, possibly for phishing or malware distribution.

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.cc/pify?keyword=american+tv+guide+listings+denver+co
    • http://files.francocastilla.com/uploads/1/3/1/8/131856491/9939604.pdf
    • http://files.michiganaces.org/uploads/1/3/1/4/131453917/vixoxoniwake_wopedelenite_pawufut.pdf
    • http://files.freedominmotionat.com/uploads/1/3/1/4/131483154/wuzumedabut.pdf
    • http://files.taaonline.org/uploads/1/3/1/8/131856285/c5bed6fa80c566.pdf
    • https://cdn.shopify.com/s/files/1/0435/3182/9412/files/lewuponafogumug.pdf
    • https://cdn.shopify.com/s/files/1/0430/4492/9690/files/81650403647.pdf
    • https://cdn.shopify.com/s/files/1/0431/3546/7669/files/10081055646.pdf
    • https://cdn.shopify.com/s/files/1/0430/5318/7221/files/29342895299.pdf
    • https://cdn.shopify.com/s/files/1/0435/4247/9007/files/nuvoz.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/66916333827.pdf
    • https://cdn.shopify.com/s/files/1/0430/5630/0186/files/pegopigel.pdf
    • https://cdn.shopify.com/s/files/1/0432/1892/7778/files/31059067621.pdf
    • https://cdn.shopify.com/s/files/1/0433/8620/8406/files/60425611227.pdf
    • https://cdn.shopify.com/s/files/1/0435/5257/1555/files/rejanonoduzaziwagobesurem.pdf
    • https://cdn.shopify.com/s/files/1/0440/8115/2152/files/nisivupe.pdf
    • https://cdn.shopify.com/s/files/1/0439/8222/5566/files/pomazajaseteviwi.pdf
    • https://cdn.shopify.com/s/files/1/0432/5844/5979/files/44827610846.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_off0000f0cd.bin
748657a11d98626f851fc5368a62776a5c20d9d6c548c2d047e68d0e2b987270
pdf-font-stream PDF embedded font (sfnt) at offset 0xF0CD 5192 bytes
font_01_sfnt_off00010250.bin
c19fc13a6937b1a8207a9a9afe1fe614e0ab7ec92e753885f71f8b67423448a7
pdf-font-stream PDF embedded font (sfnt) at offset 0x10250 15232 bytes