Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a2be26635ba2dbc…

MALICIOUS

PDF

44.6 KB Created: 2020-08-11 07:39:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47ce8f5de77804b9d835330e09ef0697 SHA-1: c321be41b1e9c1c628f9530d9c5ca67ebb0b0d62 SHA-256: 3a2be26635ba2dbcd9f3582158a45356e05bf72b4e624610f7adf2e224075d0f
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic identified a direct link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=bemba+proverbs+and+meaning+pdf'. This indicates the document's primary purpose is to redirect users to potentially harmful content. No scripts were extracted from this sample.

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=bemba+proverbs+and+meaning+pdf
    • http://files.acityonahillphotography.com/uploads/1/3/0/8/130874588/netekokeb.pdf
    • http://files.biggreenadventuretours.com/uploads/1/3/0/7/130775509/8a3783.pdf
    • http://files.sunbirdtravels.com/uploads/1/3/0/7/130775382/8820730.pdf
    • https://cdn.shopify.com/s/files/1/0429/6019/1641/files/numuvu.pdf
    • https://cdn.shopify.com/s/files/1/0435/4949/1359/files/kejirovebexoxabon.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/80278007767.pdf
    • https://cdn.shopify.com/s/files/1/0430/0269/1743/files/konamizixogixunolet.pdf
    • https://cdn.shopify.com/s/files/1/0433/9158/2357/files/wild_magic_table_dnd_5e.pdf
    • https://cdn.shopify.com/s/files/1/0432/2679/2100/files/7532829033.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vujunuvitiwowus.pdf
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/search_a_in_chrome.pdf
    • https://cdn.shopify.com/s/files/1/0434/3365/6476/files/70584906312.pdf
    • https://cdn.shopify.com/s/files/1/0439/7583/5806/files/wipifejutojirekixu.pdf
    • https://cdn.shopify.com/s/files/1/0430/1760/1181/files/xopitodirakuviluxizu.pdf
    • https://cdn.shopify.com/s/files/1/0434/1425/7820/files/migejoseriwuma.pdf
    • https://cdn.shopify.com/s/files/1/0433/9440/0414/files/buell_xb12_service_manual.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_off00006f38.bin
3b223a0eb321bcd8916bed06f9754219e8236cbb55676c4787c41b6e9907f9b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F38 5580 bytes
font_01_sfnt_off0000821e.bin
5913426823d8adccb5061de7e6aa0f67a6ab8b579a03f01dbb51c88fb91f2717		 pdf-font-stream PDF embedded font (sfnt) at offset 0x821E 10360 bytes

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