Malicious PDF — malware analysis report

Static analysis result for SHA-256 81830ec65da0807a…

MALICIOUS

PDF

50.0 KB Created: 2020-08-17 03:17:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 673eba4d276168a5e6f4c4b26315dd9a SHA-1: 9c1034d66fdeff971293dab0b0fdd0ee14b2ffec SHA-256: 81830ec65da0807a9ab0c711c5bf067ecbe340c8cbbe002e9b4975be4caa15fb
120 Risk Score

Malware Insights

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

The PDF contains a link farm pointing to numerous PDF files hosted on Shopify and other domains, with a primary redirector URL of https://ttraff.cc/pify?keyword=cnn+ireport+map. This suggests a phishing or scam campaign aiming to direct users to malicious content. No scripts were extracted, and the document body is heavily obfuscated, but the presence of a malicious redirector and a link farm strongly indicates a malicious intent to lure users to external resources.

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=cnn+ireport+map
    • http://files.thefreespiritchurch.org/uploads/1/3/0/7/130776254/7924306.pdf
    • http://riduxusa.upholsterymelbourne.com/uploads/1/3/1/4/131455734/vorobobif.pdf
    • http://gorininu.chocolaticity.net/uploads/1/3/0/9/130969862/lejiget.pdf
    • http://lagetaxe.jambo59.com/uploads/1/3/0/7/130739553/12bae9a6.pdf
    • https://cdn.shopify.com/s/files/1/0430/3909/6986/files/2191520833.pdf
    • https://cdn.shopify.com/s/files/1/0431/6987/4080/files/spatial_intelligence_test.pdf
    • https://cdn.shopify.com/s/files/1/0436/0624/5539/files/jesawakapededefi.pdf
    • https://cdn.shopify.com/s/files/1/0428/2282/8198/files/water_supply_and_pollution_control.pdf
    • https://cdn.shopify.com/s/files/1/0440/2456/1829/files/au_bonheur_des_dames_emile_zola.pdf
    • https://cdn.shopify.com/s/files/1/0435/5548/7905/files/sakanirezevudaledirodimir.pdf
    • https://cdn.shopify.com/s/files/1/0434/1720/6946/files/refrigeration_air_conditioning_and_heat_pumps_fifth_edition.pdf
    • https://cdn.shopify.com/s/files/1/0431/0925/3286/files/67699670212.pdf
    • https://cdn.shopify.com/s/files/1/0432/1856/7335/files/final_acceptance_certificate.pdf
    • https://cdn.shopify.com/s/files/1/0431/1249/7303/files/56955362642.pdf
    • https://cdn.shopify.com/s/files/1/0429/4865/7318/files/jebodofavesewumiw.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_off00007265.bin
5e76aa05c631e866610751a1f262e7cdcf54e7c6f3dcd4c58c2ce93ac899120f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7265 4660 bytes
font_01_sfnt_off00008219.bin
4eaf864acd4e9e14ed8b965e5da186738a9fcba1f50d29454d2607cc7b6d7252
pdf-font-stream PDF embedded font (sfnt) at offset 0x8219 9996 bytes
font_02_sfnt_off0000a4a0.bin
b673a9042c08ad044e83fdc68571913179ecaa26e8052125ac103ca410d871d1
pdf-font-stream PDF embedded font (sfnt) at offset 0xA4A0 16672 bytes