Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d000958e3697e3a…

MALICIOUS

PDF

49.8 KB Created: 2020-08-10 20:24:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7004505d311afb443ccbfaa711d02a9f SHA-1: e8151f9311faed4262635f0e5c44d6ae4b140596 SHA-256: 2d000958e3697e3a1f218b35e3cfc77dc89c7076b44e5e77542a26bf3b4c0dde
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. This is indicative of a link farm or SEO poisoning tactic. Crucially, one of the embedded URLs, 'https://ttraff.cc/pify?keyword=sephardic+haggadah+pdf', is flagged as a malicious redirector, suggesting an attempt to lead the user to a harmful destination. The document body itself is heavily obfuscated and contains the malicious URL, further supporting the malicious intent.

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=sephardic+haggadah+pdf
    • http://files.arvadaconcrete.org/uploads/1/3/1/6/131606173/minov.pdf
    • http://files.lyndziecherry.co/uploads/1/3/1/8/131856121/nabapapunagojelevoja.pdf
    • http://files.carnivaltourskochi.com/uploads/1/3/0/7/130739519/e02c484b084fd.pdf
    • http://files.rvmulch.com/uploads/1/3/0/7/130739062/gulusuzewonew.pdf
    • http://files.customcorner.nl/uploads/1/3/1/0/131070195/6702009.pdf
    • https://cdn.shopify.com/s/files/1/0433/3282/9342/files/9254475990.pdf
    • https://cdn.shopify.com/s/files/1/0428/2259/8823/files/oxymoron_download_zip.pdf
    • https://cdn.shopify.com/s/files/1/0432/6513/0660/files/29644678852.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/totavari.pdf
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/modejuxuratisi.pdf
    • https://cdn.shopify.com/s/files/1/0431/4847/6572/files/asterix_i_obelix_komiks.pdf
    • https://cdn.shopify.com/s/files/1/0447/7173/7749/files/canadian_visa_application_form_vfs.pdf
    • https://cdn.shopify.com/s/files/1/0430/6803/1143/files/19864714839.pdf
    • https://cdn.shopify.com/s/files/1/0429/9682/6273/files/84913370642.pdf
    • https://cdn.shopify.com/s/files/1/0431/6109/2255/files/puwazisitegunetuw.pdf
    • https://cdn.shopify.com/s/files/1/0433/3420/5590/files/ridereligo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f69.bin
127b44c9f93874c96d25eb7ddc4688780d8877ce931cf296363fb5748d8d514b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F69 6744 bytes
font_01_sfnt_off00008050.bin
387e2b95ca6d383f5daec824f079829f22940ce4d84092e999841c7a83de8e51
pdf-font-stream PDF embedded font (sfnt) at offset 0x8050 5312 bytes
font_02_sfnt_off00009252.bin
81e795269426aed633c81138e46f741c1f2f5ddf964f8ed854e247e2e32f4db8
pdf-font-stream PDF embedded font (sfnt) at offset 0x9252 11140 bytes