Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb14d6b0931f795d…

MALICIOUS

PDF

39.5 KB Created: 2020-08-26 15:53:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 644877a143b5f9af8c82b9db6ee18180 SHA-1: 2bb233d303bf139178169accabed730e6f2883cb SHA-256: eb14d6b0931f795d200c8fad2a8c0f708d06b03a33b17ef2d9ff54f3a7b25cef
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=harman+kardon+hkts+15'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The presence of a PDF link farm heuristic further supports the malicious intent by suggesting a large number of outbound links, likely for SEO manipulation or to distribute further malicious 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.cc/pify?keyword=harman+kardon+hkts+15
    • http://files.mrdelgado.ca/uploads/1/3/1/0/131070723/wuzedisinofabox.pdf
    • http://nebixut.2whatknots.com/uploads/1/3/1/4/131454215/9882858.pdf
    • http://fibusuk.tabasrosen.com/uploads/1/3/0/7/130776299/c4b559c764a84b.pdf
    • https://cdn.shopify.com/s/files/1/0434/5564/3813/files/72436259420.pdf
    • https://cdn.shopify.com/s/files/1/0430/8716/7645/files/5999964990.pdf
    • https://cdn.shopify.com/s/files/1/0428/6716/3302/files/58857803558.pdf
    • https://cdn.shopify.com/s/files/1/0431/0053/6986/files/danedujibokakof.pdf
    • https://cdn.shopify.com/s/files/1/0429/5586/6263/files/mimukixofixajulodu.pdf
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/33582676366.pdf
    • https://cdn.shopify.com/s/files/1/0432/3019/9966/files/atlantic_council_report_on_ukraine.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pepefawabibuf.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_off00005c90.bin
7998c83ea9f12332204c1a8c2cc4f884dedb23eccc19a6a8e6b7675c9f0b27e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C90 5232 bytes
font_01_sfnt_off00006e2f.bin
8f2d0bca98061d72c41cb655a8d51b3496d80db46556b99f05edead9650aeb88		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E2F 10504 bytes

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