Malicious PDF — malware analysis report

Static analysis result for SHA-256 baa07e339d7bdff1…

MALICIOUS

PDF

43.5 KB Created: 2020-08-02 14:56:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ce27d2c570841998304a5b1c50ad043 SHA-1: c0838d4bbf48b621fa9848de0a62329c2aea798a SHA-256: baa07e339d7bdff11872b02d78c27b65e5d4efc9bb6684ffb6b424e59b045d72
128 Risk Score

Malware Insights

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

The PDF file contains a lure for invoices or payments, indicated by the 'SE_INVOICE_LURE' heuristic. It embeds a link to a known malicious redirector, 'https://ttraff.com/pify?keyword=form+ba-+49', which is a critical finding. The file also contains a large number of external PDF links, suggesting a link farm, and the document body, though heavily obfuscated, contains the malicious URL.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=form+ba-+49
    • http://files.thesanctuarycapecod.com/uploads/1/3/1/8/131856531/voxapi.pdf
    • http://files.lifediscipleshipministries.ca/uploads/1/3/1/1/131163976/dukonepowiv.pdf
    • http://files.mathgrub.com/uploads/1/3/2/8/132814624/dotetini.pdf
    • http://files.stephenquinlan.net/uploads/1/3/0/7/130739525/tesafozi_lubinowowafa.pdf
    • http://files.voyagerwebsites.com/uploads/1/3/1/8/131856288/kowotosawirezanurogi.pdf
    • https://cdn.shopify.com/s/files/1/0428/2544/9628/files/66882331357.pdf
    • https://cdn.shopify.com/s/files/1/0432/1142/3902/files/80856412946.pdf
    • https://cdn.shopify.com/s/files/1/0437/0428/7383/files/86722379549.pdf
    • https://cdn.shopify.com/s/files/1/0434/3755/5868/files/xibamuda.pdf
    • https://cdn.shopify.com/s/files/1/0429/8833/9361/files/72455211728.pdf
    • https://cdn.shopify.com/s/files/1/0431/2236/0469/files/1738906982.pdf
    • https://cdn.shopify.com/s/files/1/0439/1796/7528/files/xaputapeg.pdf
    • https://cdn.shopify.com/s/files/1/0428/2338/5247/files/39950860208.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/68736518606.pdf
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/nawiwukidojofobivavumi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/22271122494.pdf
    • https://cdn.shopify.com/s/files/1/0434/0688/5031/files/tedakekovenifani.pdf
    • https://cdn.shopify.com/s/files/1/0435/3274/6906/files/33604470816.pdf
    • https://cdn.shopify.com/s/files/1/0435/4375/6954/files/83506950791.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_off00006d81.bin
7557f0cd78047372e340cd185cffd7dd594fab586d036824bc1fb81ee9b9e102
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D81 4992 bytes
font_01_sfnt_off00007e73.bin
6814dd4d9536012754f08a6953c71e4dcbf653aab3317f76887851b5cd0b7ab2
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E73 10232 bytes