Malicious PDF — malware analysis report

Static analysis result for SHA-256 996acf695afb359a…

MALICIOUS

PDF

83.1 KB Created: 2020-09-21 11:43:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4cfed13f280f976f20d28889df0f94fa SHA-1: 645de02b7b6f6b60b4afb81081a12e401d7d4770 SHA-256: 996acf695afb359a3cfea3448dfc4a963020d05b0269a8a6d0551a0e684496db
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, a technique often used to create link farms for SEO manipulation or to distribute malicious content. One of the primary links, 'https://ttraff.com/wb?keyword=pathfinder%20defender%20of%20the%20society', is flagged as a malicious redirector. While many other links point to benign Shopify domains, the presence of the malicious redirector and the link farm structure strongly suggests an intent to lure users to harmful sites.

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=pathfinder%20defender%20of%20the%20society
    • https://cdn.shopify.com/s/files/1/0435/2724/1879/files/b_pharm_1st_year_syllabus.pdf
    • https://cdn.shopify.com/s/files/1/0430/7527/2855/files/41534180593.pdf
    • https://cdn.shopify.com/s/files/1/0436/0978/4482/files/lafuvekavepidalivaxuk.pdf
    • https://cdn.shopify.com/s/files/1/0433/1687/1333/files/69690165002.pdf
    • https://cdn.shopify.com/s/files/1/0428/7738/6918/files/monroe_motivated_sequence_outline.pdf
    • https://85891517-cc51-48b9-9e3c-cd89a215bb15.filesusr.com/ugd/dec231_f7b783b6e63c409a9710a35eacd5fa6b.pdf?index=true
    • https://ca36e547-b6cf-481e-bbc3-35431c5b11c0.filesusr.com/ugd/510a18_d12c26bf463b4561aad73e382d277560.pdf?index=true
    • https://e40fae79-a64c-4473-8963-ef4800a77947.filesusr.com/ugd/aa14a9_be074c186c5f417696c14d668e32a95c.pdf?index=true
    • https://2a3b8e00-e337-4b22-9cb7-dbc992c946f7.filesusr.com/ugd/694d5d_27b24df90bc04e69b72f86ae446a6cd6.pdf?index=true
    • https://9eb3cf16-ef1d-4422-8fbe-13720832b75b.filesusr.com/ugd/af0aa9_035bb02ab66c47598d554d310e2458af.pdf?index=true
    • https://28471f0b-1661-4732-b4e8-e5775e6712f2.filesusr.com/ugd/90423f_7cfd0f7866e74209a367c0847999c605.pdf?index=true
    • https://bb9597fd-38f9-43d2-be99-b6b1c1c87d73.filesusr.com/ugd/c46c8a_f33d215248004c289d46958055ece6a0.pdf?index=true
    • https://c75a30df-ceea-4f49-89d4-3d87a6e855df.filesusr.com/ugd/87b9a8_59a6a0b0ea954d098353430a4b4c99cb.pdf?index=true
    • https://0382f026-6f68-4fe3-b7a2-9f7b49c0b048.filesusr.com/ugd/97368a_a28ca9d005404b83924dae540c014402.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0431/1826/4469/files/webiresakafogaxiwotu.pdf
    • https://cdn.shopify.com/s/files/1/0434/9673/4885/files/kekawezidonipibap.pdf
    • https://cdn.shopify.com/s/files/1/0435/1783/7467/files/vokubagigiwikexajamef.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_off000108c9.bin
b8acc1772dd0acd5cac2d1d61467521dccefcbd4bbc9172c505aecac5f6c30aa
pdf-font-stream PDF embedded font (sfnt) at offset 0x108C9 5180 bytes
font_01_sfnt_off00011a6c.bin
336de27b7d556c7f04ff26b4abc83892be56425332f3283954556eb026287921
pdf-font-stream PDF embedded font (sfnt) at offset 0x11A6C 11388 bytes