Malicious PDF — malware analysis report

Static analysis result for SHA-256 22b4af3d2942b569…

MALICIOUS

PDF

39.7 KB Created: 2020-08-23 13:52:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9a7fb1a330e3c30db7a8168a7a1713b5 SHA-1: aa3139b3a94417bc94189c8ea9e47f4e096c1111 SHA-256: 22b4af3d2942b5692ff03ca68d5317ea505b8e657533933a73e74e8e3cf6d04e
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=calendar+template+fiscal+year'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body, though partially corrupted, contains the text 'Calendar template fiscal year' and the malicious URL, suggesting a lure to a phishing or malware distribution site. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=calendar+template+fiscal+year
    • http://files.howemtnknives.com/uploads/1/3/1/8/131871556/roredufaweraje.pdf
    • http://mozamer.ceremonymatters.ca/uploads/1/3/1/4/131413418/3a108375.pdf
    • http://zorumosi.kandgmakeit.com/uploads/1/3/1/8/131856772/xadixa_bowaderogekosib.pdf
    • http://files.learningdifferencesresourcegroup.org/uploads/1/3/0/9/130969440/6a5707e6.pdf
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/estatuto_anticorrupcion_2020.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89352644259.pdf
    • https://cdn.shopify.com/s/files/1/0433/9941/3925/files/46029361823.pdf
    • https://cdn.shopify.com/s/files/1/0429/3342/0195/files/23037984892.pdf
    • https://cdn.shopify.com/s/files/1/0433/6123/9192/files/melawibolopes.pdf
    • https://cdn.shopify.com/s/files/1/0439/9231/8110/files/nojopupetifajerokiginut.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dotedijulukamani.pdf
    • https://cdn.shopify.com/s/files/1/0429/7093/9541/files/substantive_audit_procedures_for_accounts_receivable.pdf
    • https://cdn.shopify.com/s/files/1/0430/5344/9365/files/36471099482.pdf
    • https://cdn.shopify.com/s/files/1/0428/2961/1171/files/quality_improvement_besterfield_9th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0429/1064/6435/files/kepokojix.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_off00005d83.bin
682dd1adc40c33c5dea47cae98d8ef21b08ea0e094d43270876d9f304c5d3f14		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D83 5308 bytes
font_01_sfnt_off00006f80.bin
630e6d2f4008efd4e748cdb4aebc0614d90ecc03d0738a7b8a44cfa322ee7f3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F80 10172 bytes

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