Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f9d5597d5be27cf…

MALICIOUS

PDF

42.4 KB Created: 2020-08-23 08:45:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ee03dbf28d866f2ac8c047f35fc03c5 SHA-1: f4e5450952c97f09909d9d54e07086789d1df811 SHA-256: 2f9d5597d5be27cf983ab41ac32ba36db2516def92f39d6b71baf2cecebc80cd
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. The document body also contains this URL, alongside other URLs that appear to be part of a link farm, suggesting a social engineering lure. The primary malicious URL is used to redirect users, likely to a phishing or malware distribution site.

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=angular+material+side+menu+template
    • http://zupakob.crowdedcloset.org/uploads/1/3/1/4/131406068/320805.pdf
    • http://files.doctorsinrecital.org/uploads/1/3/0/8/130874252/3254707.pdf
    • https://cdn.shopify.com/s/files/1/0427/9068/2783/files/amharic_books_download_free.pdf
    • https://cdn.shopify.com/s/files/1/0427/6820/3942/files/61742219482.pdf
    • https://cdn.shopify.com/s/files/1/0434/6642/4470/files/25174447763.pdf
    • https://cdn.shopify.com/s/files/1/0430/8510/3255/files/ludar.pdf
    • https://cdn.shopify.com/s/files/1/0433/2532/5465/files/dotefonafofutexafotoru.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/febipak.pdf
    • https://cdn.shopify.com/s/files/1/0435/9208/9759/files/72243380587.pdf
    • https://cdn.shopify.com/s/files/1/0431/9202/5249/files/17410240806.pdf
    • https://cdn.shopify.com/s/files/1/0436/1371/6643/files/adjective_clause_multiple_choice_test.pdf
    • https://cdn.shopify.com/s/files/1/0431/3081/4626/files/xigurunilejiwax.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_off00005c09.bin
4da5a45e0070cc490bc15c1c90423f987452cb31ec4fceca650e1ba867841a70		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C09 5268 bytes
font_01_sfnt_off00006dd3.bin
cb381723e4e4b4c604acfb6f6671eeaecba5ec80beab99839ffabf4cd7a19eab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DD3 14960 bytes

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