Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7dc750922c081f3…

MALICIOUS

PDF

38.5 KB Created: 2020-08-19 06:06:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 412bdd4062de24d1814dab63d942f90d SHA-1: e5d5ab0b51876926c600dc4f7b1056ec3cd824f9 SHA-256: d7dc750922c081f37835e3362910e86fdde0c3a8191224ce8238d6e380c576fb
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including one pointing to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains text suggesting it is a 'Venn diagram template in powerpoint', which is likely a lure to encourage clicks on the embedded malicious links. The primary malicious link is to 'ttraff.com/pify?keyword=venn+diagram+template+in+powerpoint', which is designed to redirect the user to further malicious content.

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=venn+diagram+template+in+powerpoint
    • http://wodikux.windowwarehousedraperysupply.com/uploads/1/3/1/3/131398091/5fa3e1fe2.pdf
    • http://files.thejoyfultree.com/uploads/1/3/2/7/132741064/nomekoli.pdf
    • http://files.whitele.com/uploads/1/3/1/3/131383318/2145c.pdf
    • https://cdn.shopify.com/s/files/1/0431/5820/8674/files/zesopazafixasogi.pdf
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/vikaxazodinusep.pdf
    • https://cdn.shopify.com/s/files/1/0429/4072/7463/files/cavatina_duet.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wojifuxazax.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65294746239.pdf
    • https://cdn.shopify.com/s/files/1/0434/2287/5813/files/padojenepo.pdf
    • https://cdn.shopify.com/s/files/1/0427/9923/5228/files/84331432994.pdf
    • https://cdn.shopify.com/s/files/1/0434/5351/3881/files/fugejaloxokeferizikevi.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_off000058eb.bin
7e963e34c3528e372f07931e588c89d61a084a4dcc2d4c4a5b8722bacb22066d
pdf-font-stream PDF embedded font (sfnt) at offset 0x58EB 5160 bytes
font_01_sfnt_off00006a77.bin
12330b9084bc3b9883ba2345decb8dd1268129239b3dcd8608882a6940fedc8c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A77 10288 bytes