Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c04ab182fae7210…

MALICIOUS

PDF

52.0 KB Created: 2020-08-18 13:23:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c05bf18b28ec4eb312bbebc253ab98e SHA-1: 4285a1df15d2b687cfb852ada7ea0d69417be9ff SHA-256: 7c04ab182fae721099d2176e4443a2725f33cc8b7ec0d6fcbc344e06678face9
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with at least one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'MLA format citation website generator', suggesting a lure to trick users into clicking the malicious link. The presence of numerous external PDF links, many hosted on Shopify, further indicates a link farm designed to obscure the true malicious destination.

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=mla+format+citation+website+generator
    • http://setiku.toolbox2teach.com/uploads/1/3/1/8/131856703/vajolimofa_vokanufapo_dedifone.pdf
    • http://faketeb.gsbauk.com/uploads/1/3/1/1/131164456/dorit-xikikafo-vofuvovenewe-bikanozajibuxi.pdf
    • http://files.magnificatsm.com/uploads/1/3/0/7/130740130/2279131.pdf
    • https://cdn.shopify.com/s/files/1/0440/8125/0469/files/brandon_roy_injury_report.pdf
    • https://cdn.shopify.com/s/files/1/0432/9819/3573/files/77119414280.pdf
    • https://cdn.shopify.com/s/files/1/0436/2865/8848/files/winibu.pdf
    • https://cdn.shopify.com/s/files/1/0437/2961/7057/files/xubidamewegiwomepizezaki.pdf
    • https://cdn.shopify.com/s/files/1/0429/2159/0951/files/zemiwakiro.pdf
    • https://cdn.shopify.com/s/files/1/0438/3218/0893/files/pisudabizavamalo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3110/9540/files/mirimererafuvorozoxa.pdf
    • https://cdn.shopify.com/s/files/1/0434/2182/7222/files/72642539942.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_off00008c0c.bin
c187c86dd050099f25c4ec903ad448b2b6673d91ae017b759f5e35427721d863		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C0C 5440 bytes
font_01_sfnt_off00009e8f.bin
359c2bf8d4e83f800caca607b8419d89842dc960d08c241e8853cf5c91276351		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E8F 10660 bytes

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