Malicious PDF — malware analysis report

Static analysis result for SHA-256 20f06c8e5dbbf2b5…

MALICIOUS

PDF

35.9 KB Created: 2020-09-16 14:23:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59484975d6300b45f4c94b95e026dacd SHA-1: d8fc0af5bccbc82bcc261e5c58dfef7db81cf9da SHA-256: 20f06c8e5dbbf2b5e63abd1a62e09be4c43d74184bcb7362f615c340193e4a03
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a malicious redirector. This suggests the document's primary purpose is to lure users to a malicious site, likely for phishing or malware delivery. The presence of a link farm heuristic further supports the malicious intent of distributing external links. No scripts were extracted, limiting the analysis of direct execution capabilities.

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.link/wix?keyword=magnavox+hdd+dvd+recorder+h2160mw9+manual
    • http://files.cmmchurch.com/uploads/1/3/0/9/130969183/6642756.pdf
    • http://files.zippitydodog.net/uploads/1/3/0/8/130813381/51113b74.pdf
    • http://files.geraldinepilgrim.com/uploads/1/3/2/8/132815346/6780435.pdf
    • http://nusugokas.jeremypelletier.com/uploads/1/3/0/7/130740572/begitukop_vazefek_rafepuga_vafowelulisa.pdf
    • http://files.pavarinipr.com/uploads/1/3/1/0/131071256/4e6fd.pdf
    • http://netumo.gehringerwines.ca/uploads/1/3/0/8/130813765/5d1430.pdf
    • https://cdn.shopify.com/s/files/1/0432/3429/5966/files/sepaferivojasu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9282/0647/files/dinesh_publications_biology_for_neet.pdf
    • https://cdn.shopify.com/s/files/1/0439/3772/6622/files/tanebejolebogawemujil.pdf
    • https://154c2848-fda4-4554-9897-5b2054a172bf.filesusr.com/ugd/d6af85_fc13a69092fe43ad9ca1c65305238b4b.pdf?index=true
    • https://691b7cc2-c7e5-4af7-9ae8-95f664209ceb.filesusr.com/ugd/89064d_7c67132c7ee54f1491c8ea6a883c2e0c.pdf?index=true
    • https://c5fdf1ed-e752-4055-82af-e14222e70f0e.filesusr.com/ugd/89602e_248e696a473f4ee0a6c323cad32826a9.pdf?index=true
    • https://e13531f5-3217-4b59-b6c6-bb1f94ee9ab7.filesusr.com/ugd/4b874d_64d91ad463df4b6f870e36cee2548349.pdf?index=true
    • 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_off00004b08.bin
9e3757af19c28d6bda082409a9a9d496e02a3217f5adf08293e33b8c28eb5626		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4B08 6036 bytes
font_01_sfnt_off00005f8f.bin
b996464e682ffd8e1294e19bdf0962c0b7150abbcbc82b33e445762eaf92bdeb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F8F 10296 bytes

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