Malicious PDF — malware analysis report

Static analysis result for SHA-256 2480c3acd50aa122…

MALICIOUS

PDF

34.8 KB Created: 2020-08-10 13:33:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 83a1455602b8fbcfc124c726054b23aa SHA-1: dce99ae2ab4126ea13706a5b5b081d761f5fc779 SHA-256: 2480c3acd50aa122dc5301d0a9dee724beb7ce0a8e6bfd4a8f4ca5f302d30c2b
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=burger+king+menu+pdf'. This URL is presented within the document body, disguised as a 'Burger King menu pdf', indicating a social engineering lure. The file also contains a large number of embedded URLs, many hosted on shopify.com, suggesting an attempt to create a link farm for SEO manipulation or to obscure the malicious redirector. No scripts were extracted from this sample.

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=burger+king+menu+pdf
    • http://files.nydrivinglessons.com/uploads/1/3/0/9/130969633/01a8203611dd.pdf
    • http://files.essexwindowfashions.com/uploads/1/3/0/8/130814831/4125604.pdf
    • http://tamosefek.plumerart.com/uploads/1/3/0/7/130738799/3985489.pdf
    • http://files.recapinc.net/uploads/1/3/2/3/132303410/2945783.pdf
    • https://cdn.shopify.com/s/files/1/0432/5238/3904/files/17381683050.pdf
    • https://cdn.shopify.com/s/files/1/0438/0976/7584/files/bajasorelaxulakodo.pdf
    • https://cdn.shopify.com/s/files/1/0434/4584/6168/files/17166694683.pdf
    • https://cdn.shopify.com/s/files/1/0431/2216/3876/files/padafikojalobex.pdf
    • https://cdn.shopify.com/s/files/1/0433/7516/5594/files/dafuwavigar.pdf
    • https://cdn.shopify.com/s/files/1/0433/7539/4977/files/janet_jackson_anytime_anyplace_mp3.pdf
    • https://cdn.shopify.com/s/files/1/0431/8619/2546/files/buwumubamopapale.pdf
    • https://cdn.shopify.com/s/files/1/0433/9780/8279/files/68994454690.pdf
    • https://cdn.shopify.com/s/files/1/0431/8999/3621/files/92307948750.pdf
    • https://cdn.shopify.com/s/files/1/0440/1322/4094/files/diablo_3_best_barbarian_build.pdf
    • https://cdn.shopify.com/s/files/1/0438/1641/9488/files/wisitij.pdf
    • https://cdn.shopify.com/s/files/1/0430/4306/1909/files/40411218301.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_off000049bc.bin
cafc313722cc63154d36edd88ec1b5cd4b55c79fc14352a2637c3454f0b13cc5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x49BC 5052 bytes
font_01_sfnt_off00005add.bin
44fb197b710ed064432e6db7a73b57de1ec81ff3a994d1176fc6b553f11dd95d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5ADD 10068 bytes

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