Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe4fbd29d2362eb8…

MALICIOUS

PDF

40.2 KB Created: 2020-08-09 19:39:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e494b9bb904462b6ac416e3d6e523e7 SHA-1: 29e7aeb7a545e08452c3db98bb27126bf7d1cba1 SHA-256: fe4fbd29d2362eb8da78a53d147846eba53d8147b2dc96581316fe70a1cff726
120 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF document contains a large number of embedded links, many pointing to Shopify domains hosting PDF files, likely as part of an SEO link farm. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is presented to the user with the text 'Print website to pdf as it appears'. This suggests the document's primary purpose is to redirect users to malicious infrastructure. 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/pify?keyword=print+website+to+pdf+as+it+appears
    • http://dukefoj.wvmountainyoga.com/uploads/1/3/2/6/132681513/8835324.pdf
    • http://files.vclavender.com/uploads/1/3/1/4/131405977/vojalesosixejas.pdf
    • http://rabukesut.huningtonchase.org/uploads/1/3/1/6/131606490/4106071.pdf
    • https://cdn.shopify.com/s/files/1/0434/1609/2828/files/mathematics_in_the_modern_world_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0431/7275/7670/files/90699158499.pdf
    • https://cdn.shopify.com/s/files/1/0431/7102/0964/files/physics_walker_5th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0432/6857/1298/files/jurnal_pluralisme_budaya.pdf
    • https://cdn.shopify.com/s/files/1/0431/4074/3329/files/jiduvoxemokitemuno.pdf
    • https://cdn.shopify.com/s/files/1/0434/5682/3453/files/cambridge_igcse_mathematics_core_and_extended.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/58657968950.pdf
    • https://cdn.shopify.com/s/files/1/0437/9607/0549/files/vinuvilukazum.pdf
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/32199806448.pdf
    • https://cdn.shopify.com/s/files/1/0429/7526/4924/files/2951096322.pdf
    • https://cdn.shopify.com/s/files/1/0432/3645/8654/files/china_town_songs.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zozaweguxilamefawe.pdf
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/4769011389.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_off00005d18.bin
3400168dc850d3c3731ac9202a176b42f37eaaf5e6037f50f34d2dfc9aa7195e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D18 5236 bytes
font_01_sfnt_off00006f01.bin
e62e5ac38756ca154d7fdb0dd2541ca93c3872390a6d80a96ed8eab0b7b88c11		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F01 10804 bytes

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