Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcb552c948fcd75f…

MALICIOUS

PDF

47.6 KB Created: 2020-08-11 12:59:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c08aec6837dc3482642142c3b745fa6 SHA-1: 96f8bacc46f0f67dc58729197b9875fa185c58ce SHA-256: bcb552c948fcd75fa7a32cc1963844d9b986f1032769e1fd5f3b040503a8680b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains numerous links, including one identified as a malicious redirector. The document body, though partially corrupted, contains text related to legal acts and a URL that appears to be part of a link farm designed to attract search engine traffic. The primary malicious link redirects to 'ttraff.com', which is flagged as a malicious redirector. This suggests the document's purpose is to lure users to a malicious site under the guise of providing a legal document.

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=benami+transactions+prohibition+act+1988+bare+act+pdf
    • http://files.jmaxey.net/uploads/1/3/1/4/131406811/11deb7d10fa905.pdf
    • http://files.wickedsweetrentals.com/uploads/1/3/0/7/130775848/9af87e1237.pdf
    • http://files.lca-of-tc.org/uploads/1/3/0/9/130969950/5251195.pdf
    • http://files.stannesrathangan.com/uploads/1/3/0/9/130969655/zufurabunavopor.pdf
    • http://tasorod.streetcarartist.com/uploads/1/3/2/7/132712358/2745101.pdf
    • https://cdn.shopify.com/s/files/1/0431/5817/5893/files/sezalewadanuregalo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pegegezanonipilupe.pdf
    • https://cdn.shopify.com/s/files/1/0439/1718/1083/files/anima_weapon_ff14.pdf
    • https://cdn.shopify.com/s/files/1/0436/0152/6948/files/porsche_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/1395/6007/files/zamutinefiwegiri.pdf
    • https://cdn.shopify.com/s/files/1/0431/4664/1570/files/3405366866.pdf
    • https://cdn.shopify.com/s/files/1/0432/0762/2824/files/xemibinew.pdf
    • https://cdn.shopify.com/s/files/1/0434/7248/6566/files/pilasifugasowotinedur.pdf
    • https://cdn.shopify.com/s/files/1/0431/0482/9602/files/5169808763.pdf
    • https://cdn.shopify.com/s/files/1/0440/1764/7766/files/94623866385.pdf
    • https://cdn.shopify.com/s/files/1/0434/5944/4889/files/bijowasokiwo.pdf
    • https://cdn.shopify.com/s/files/1/0429/4321/7830/files/construction_business_proposal.pdf
    • https://cdn.shopify.com/s/files/1/0435/2638/9912/files/gefowepi.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_off00006486.bin
849e050064c0f9d50a194fce5ab0c61a8e3852d69f7945cd5b4aaf4957bd236e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6486 5952 bytes
font_01_sfnt_off0000788d.bin
f54a042b1d98b3b635f0b184d3b0b41c7617e0d454ed0ba45d85fc38d250aba3
pdf-font-stream PDF embedded font (sfnt) at offset 0x788D 10176 bytes
font_02_sfnt_off00009b7e.bin
ebd2804bff382343e08f6a42dc45f69f4e794c08b23908ae60ba78ededae74b1
pdf-font-stream PDF embedded font (sfnt) at offset 0x9B7E 16164 bytes