Malicious PDF — malware analysis report

Static analysis result for SHA-256 46781ccad2db0484…

MALICIOUS

PDF

43.8 KB Created: 2020-08-12 01:54:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b16d422c386b73f6104cb6bc331cbb5 SHA-1: ae1bbfaf56ffbaa64e1423c69f4921dfd5b1bfd9 SHA-256: 46781ccad2db04849d4c81f631d6802497d8d40536b0b49076b49d7f5780863f
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wb?keyword=corridors%20of%20freedom%20pdf'. This indicates the document's primary purpose is to redirect users to potentially harmful content. Additionally, the PDF exhibits characteristics of a link farm, embedding numerous external links, many hosted on cdn.shopify.com, likely for SEO manipulation or to obscure the malicious redirector. 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/wb?keyword=corridors%20of%20freedom%20pdf
    • http://gujewas.evanstonpopupgallery.com/uploads/1/3/1/6/131606407/bitedofivef.pdf
    • http://files.holyredeemerfla.org/uploads/1/3/1/3/131381277/db385f.pdf
    • http://files.chrislockett.com/uploads/1/3/1/4/131453818/3b4d17b1179d425.pdf
    • http://files.daisyhillacademy.us/uploads/1/3/0/8/130874658/noxofejivab-duvuraginaluv-detupojenoto.pdf
    • http://files.braveministry.com/uploads/1/3/0/7/130775387/kotajaxuxonoz_bulusu_befororu.pdf
    • https://cdn.shopify.com/s/files/1/0435/9979/0243/files/fowawexosegolut.pdf
    • https://cdn.shopify.com/s/files/1/0429/7854/1722/files/rawakumifibakabovedaxapo.pdf
    • https://cdn.shopify.com/s/files/1/0437/4206/8887/files/8584612087.pdf
    • https://cdn.shopify.com/s/files/1/0435/6967/6451/files/93345334456.pdf
    • https://cdn.shopify.com/s/files/1/0428/1440/6823/files/28452514621.pdf
    • https://cdn.shopify.com/s/files/1/0433/8899/3699/files/bakuriguzexavop.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pafinekumukomotutawewokab.pdf
    • https://cdn.shopify.com/s/files/1/0436/9835/6392/files/limevor.pdf
    • https://cdn.shopify.com/s/files/1/0448/4536/7453/files/bookmark_free_online.pdf
    • https://cdn.shopify.com/s/files/1/0431/3664/7317/files/fuwelelarumijewuxalurew.pdf
    • https://cdn.shopify.com/s/files/1/0431/7623/1063/files/47041942521.pdf
    • https://cdn.shopify.com/s/files/1/0431/8186/7176/files/37737953432.pdf
    • https://cdn.shopify.com/s/files/1/0428/3816/3623/files/58077062264.pdf
    • https://cdn.shopify.com/s/files/1/0434/8759/2608/files/asakuki_diffuser_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/
    • https://cdn.shopify.com/s/fil

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ef1.bin
235316552d1978db4852a7d4a9575fe4780926400e18adada62f229886490406
pdf-font-stream PDF embedded font (sfnt) at offset 0x6EF1 4848 bytes
font_01_sfnt_off00007f57.bin
c836ffea89d30b80e3a6450986a4953138337746199cd7ca70c2eb48d1f97c0b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F57 10172 bytes