Malicious PDF — malware analysis report

Static analysis result for SHA-256 49050c4cef9233b1…

MALICIOUS

PDF

36.3 KB Created: 2020-08-24 16:15:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 742c6e3d3f8e1e0691bf6dbc07c67c41 SHA-1: 09a6be6274a1fc6fc88dd2b42bfe269acf00c137 SHA-256: 49050c4cef9233b10b30aa85c54b9f32eac7f1fd7bbd014daaa9801407988446
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 identified a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=champion+song++pagalworld'. The document body, though heavily obfuscated, also contains this URL and other links to what appear to be SEO-optimized PDF files hosted on Shopify. This suggests a phishing or redirection campaign aiming to lead users to malicious 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.com/pify?keyword=champion+song++pagalworld
    • http://bodobak.sunflowerchamberorchestra.org/uploads/1/3/2/7/132740478/a3c9f62b1.pdf
    • http://files.idrawshoedesigns.com/uploads/1/3/2/7/132740694/kabitozur_rotapidabejede_vazafufi_tofetiriwira.pdf
    • http://liloz.rhlab.org/uploads/1/3/1/8/131857631/3c2db.pdf
    • http://files.techniquejobs.com/uploads/1/3/1/4/131406816/2390231.pdf
    • https://cdn.shopify.com/s/files/1/0435/3343/5039/files/wotinuwise.pdf
    • https://cdn.shopify.com/s/files/1/0431/6728/5404/files/cswp_exam_practice_questions.pdf
    • https://cdn.shopify.com/s/files/1/0464/6145/2440/files/terraform_aws_specify_availability_zone.pdf
    • https://cdn.shopify.com/s/files/1/0435/9343/3246/files/26847945281.pdf
    • https://cdn.shopify.com/s/files/1/0431/7069/3284/files/40683743939.pdf
    • https://cdn.shopify.com/s/files/1/0434/3899/7665/files/dixumugokaxil.pdf
    • https://cdn.shopify.com/s/files/1/0427/6623/7852/files/14475386339.pdf
    • https://cdn.shopify.com/s/files/1/0428/5494/0828/files/nowutanin.pdf
    • https://cdn.shopify.com/s/files/1/0429/5108/2143/files/posenewavaluxedixa.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_off00004f4d.bin
8d360138f765c6aad5daad8e655febfdc7a14001586988a33c52e072ed4a3a2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F4D 5368 bytes
font_01_sfnt_off00006177.bin
81d5a6f25ae6bcdfb6f60f1b283793f7cb5b7e82b86901443cdc2140a893144a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6177 10376 bytes

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