Malicious PDF — malware analysis report

Static analysis result for SHA-256 d020af26423dbe78…

MALICIOUS

PDF

51.3 KB Created: 2020-07-29 16:52:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 597ef4c59db80608026ca2d141687ba7 SHA-1: 501cb27898a839107914af4831ee2b1d47ff9aac SHA-256: d020af26423dbe78b700152ee83c8211f11e6c54821d71fb39e07e6c14d77fd6
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a technique often used to create link farms for SEO poisoning or to redirect users to malicious sites. One critical heuristic identifies a link to a known malicious redirector, ttraff.com, which is designed to obscure the ultimate destination. The document body, though heavily obfuscated, suggests a lure related to a 'psychological test report sample pdf'. The presence of a link farm and a malicious redirector indicates an attempt to deliver a secondary payload or phish for information.

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=psychological+test+report+sample+pdf
    • http://files.artinstructor.net/uploads/1/3/0/7/130776891/7836845.pdf
    • http://files.cypresschasecondoc.com/uploads/1/3/0/9/130969974/4909704.pdf
    • http://files.bpwhagerstownmd.org/uploads/1/3/1/3/131382595/pusosexeguga_lugul_setizipove.pdf
    • http://files.creeksideband.com/uploads/1/3/1/3/131384789/3301404.pdf
    • http://files.napervillebedbugs.com/uploads/1/3/1/6/131637546/090584493f844.pdf
    • https://cdn.shopify.com/s/files/1/0437/6841/4370/files/dagepitirevinejoli.pdf
    • https://cdn.shopify.com/s/files/1/0430/6318/1463/files/xawusan.pdf
    • https://cdn.shopify.com/s/files/1/0432/1945/2063/files/xaguzesuvuza.pdf
    • https://cdn.shopify.com/s/files/1/0434/1818/9980/files/78968068234.pdf
    • https://cdn.shopify.com/s/files/1/0430/3932/6365/files/4942838091.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zijuk.pdf
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/piwoguzejatilege.pdf
    • https://cdn.shopify.com/s/files/1/0434/8064/5782/files/wukupakarusemez.pdf
    • https://cdn.shopify.com/s/files/1/0429/7303/6697/files/38924452280.pdf
    • https://cdn.shopify.com/s/files/1/0433/0799/1208/files/73013180408.pdf
    • https://cdn.shopify.com/s/files/1/0430/8353/0394/files/92252785682.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_off000087d6.bin
52e9601b44e4ddf52a84cbfcaf6e812fde3f6b88b6413a836972ebafeea25205		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87D6 5352 bytes
font_01_sfnt_off00009a0a.bin
101ba5093ba22b8c6d01adff0489cdbaebe91c7a40710809e22daa51ca76a1e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A0A 11592 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.