Malicious PDF — malware analysis report

Static analysis result for SHA-256 84e012eb9cc4ae39…

MALICIOUS

PDF

40.5 KB Created: 2020-08-12 04:00:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3df285c582de56161cf95f5867918abd SHA-1: e635169798361c710f8e02b8a959551711eced4b SHA-256: 84e012eb9cc4ae39bdb8307f500fd541b326b550db04287f02f66aef5a3483f9
120 Risk Score

Malware Insights

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

The PDF file contains numerous links to external PDF files, a technique often used for SEO poisoning or to redirect users to malicious sites. One critical heuristic firing indicates a direct link to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=what+is+morphology+in+linguistics+pdf'. This suggests the document's primary purpose is to redirect the user to a malicious site, likely for further exploitation or phishing. 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=what+is+morphology+in+linguistics+pdf
    • http://files.christianlab.org/uploads/1/3/1/3/131381677/7514258.pdf
    • http://files.davideweed.com/uploads/1/3/2/7/132740327/nevotiwowi.pdf
    • http://files.michaelmorrisnz.com/uploads/1/3/0/8/130813305/0c789c5.pdf
    • https://cdn.shopify.com/s/files/1/0431/1266/1152/files/mikamizoduwu.pdf
    • https://cdn.shopify.com/s/files/1/0432/5831/4912/files/vosokitowogagisawo.pdf
    • https://cdn.shopify.com/s/files/1/0432/7574/7483/files/46358747821.pdf
    • https://cdn.shopify.com/s/files/1/0440/0896/4246/files/adobe_reader_file_convert_to_online.pdf
    • https://cdn.shopify.com/s/files/1/0431/9064/8994/files/bomarenoboduzosesozo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/debijirel.pdf
    • https://cdn.shopify.com/s/files/1/0440/2606/9157/files/pijusaraj.pdf
    • https://cdn.shopify.com/s/files/1/0434/7274/8710/files/mexonitenewitedinugabaruf.pdf
    • https://cdn.shopify.com/s/files/1/0433/5458/7288/files/2002_jeep_wrangler_owners_manual_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/8471/7979/files/56474797106.pdf
    • https://cdn.shopify.com/s/files/1/0439/2475/0491/files/45739771702.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/
    • https://cdn.shopify.com/s/files/1/0431/8471/7979/fil

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fe4.bin
d41d26d1bbb2372f46a0705a7ffd0cd96c6daf098a37d75d353e5cde2e2ee7db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FE4 5684 bytes
font_01_sfnt_off00007322.bin
ddee3d527ba7de39136ce0bf0980baabd9b6f451113821f3be2bd282d403c18b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7322 9868 bytes

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