Malicious PDF — malware analysis report

Static analysis result for SHA-256 554dc7310ccf6eb1…

MALICIOUS

PDF

35.3 KB Created: 2020-08-29 15:57:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 94ad0dd3900ca874ead75be94ace8428 SHA-1: 128e6303e40ffb03c653b5975d1a5e8b64f91c87 SHA-256: 554dc7310ccf6eb11aea84cac4f1a7d90ed37c966380fec05685a4e2721dd45f
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=wrath+of+the+righteous+player%2527s+guide'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, one of which is 'https://cdn.shopify.com/s/files/1/0429/2080/4511/files/gelodedawugadufaxijometut.pdf'. The document body, though partially corrupted, includes text suggesting a lure related to a 'player's guide', reinforcing the malicious intent of directing users to external, potentially harmful, 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.cc/wix?keyword=wrath+of+the+righteous+player%2527s+guide
    • https://cdn.shopify.com/s/files/1/0429/2080/4511/files/gelodedawugadufaxijometut.pdf
    • https://cdn.shopify.com/s/files/1/0433/0792/5654/files/commutative_and_associative_properties_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0433/7913/0531/files/cracker_barrel_pancakes_nutrition_information.pdf
    • https://cdn.shopify.com/s/files/1/0431/2478/5319/files/xedamobomowezagez.pdf
    • https://cdn.shopify.com/s/files/1/0433/6504/0282/files/mount_and_blade_tax_inefficiency.pdf
    • https://cdn.shopify.com/s/files/1/0433/7532/9445/files/aecc_english_communication_notes.pdf
    • https://static.usrfiles.com/ugd/b8c837_2b2bcb4b26be4650989713ea16f496c3.pdf
    • https://static.usrfiles.com/ugd/b8c837_8e7c60119e7a47c4bb0677d44fedcb88.pdf
    • https://cdn.shopify.com/s/files/1/0431/9107/4976/files/nabonage.pdf
    • https://cdn.shopify.com/s/files/1/0430/8847/8365/files/64944810612.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_off00004df0.bin
881c2d5b47946f3f76aa29dc4f0231a42f749beee21cd44db4c3cbc0eaf00901		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4DF0 5452 bytes
font_01_sfnt_off00006098.bin
3d47d385da7ac9574da83118434037e709f47ab796d593b288988993f5b1135d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6098 9312 bytes

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