Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbd4db68c0d162c1…

MALICIOUS

PDF

41.6 KB Created: 2020-08-01 18:04:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 94241a28ba597b17c5e983ec75e65bea SHA-1: f8444458ee601b19abf652d7223f3ca951673651 SHA-256: cbd4db68c0d162c1803698fbcd7d218982098d6746e41e06ba4ddcdba8dc9ee8
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to ttraff.ru, which is associated with malicious activity. Additionally, it hosts a large number of external PDF links, many of which are hosted on cdn.shopify.com, suggesting a link farm or SEO poisoning attempt. The document body itself contains text related to converting PDFs and includes the malicious URL, further supporting the lure. No scripts were extracted from this sample.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=how+to+convert+pdf+into+fillable+form
    • http://files.troop11billerica.org/uploads/1/3/2/8/132814241/6077598.pdf
    • http://files.hempsteadtrackandfield.com/uploads/1/3/1/3/131381204/7079214.pdf
    • http://files.somafirewellness.com/uploads/1/3/1/4/131454034/fifofilek-gejawixalezuxu-vazeludabavijim-bipapenekuvifow.pdf
    • https://cdn.shopify.com/s/files/1/0435/9307/2808/files/dudufaxusi.pdf
    • https://cdn.shopify.com/s/files/1/0433/3328/8088/files/16154058196.pdf
    • https://cdn.shopify.com/s/files/1/0438/7880/9755/files/pinuzurop.pdf
    • https://cdn.shopify.com/s/files/1/0431/1633/1172/files/nutigazifufavigifaros.pdf
    • https://cdn.shopify.com/s/files/1/0429/8421/0583/files/wipimodipugeg.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3750/files/derosejudov.pdf
    • https://cdn.shopify.com/s/files/1/0433/7437/9164/files/vevikovuvagape.pdf
    • https://cdn.shopify.com/s/files/1/0430/4257/0402/files/50547330627.pdf
    • https://cdn.shopify.com/s/files/1/0432/5113/8715/files/93584802704.pdf
    • https://cdn.shopify.com/s/files/1/0434/1760/0152/files/37386732218.pdf
    • https://cdn.shopify.com/s/files/1/0440/3711/1973/files/76948238232.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_off00006390.bin
3cc2bcf468fe526e0384385a681a4004da789dfefa33ea33bcff7986e1d2fc64		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6390 5376 bytes
font_01_sfnt_off000075d6.bin
37d9f58bca93bd2d3bad1f3ce2bfae91e6125f118afc3cc5285c7f1cf6fbe38d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75D6 10560 bytes

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