Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3a4be760eee5b46…

MALICIOUS

PDF

36.0 KB Created: 2020-08-09 11:38:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50dd8486a9301d3f9ceff7b8b00d3b36 SHA-1: a9cafbe900aa7bb28c4c927de76aeb0e16f85cf7 SHA-256: e3a4be760eee5b4684d0085edb2ddef97424148037dc6d4bc6f3ddc6e31b7ea6
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to malicious infrastructure. Additionally, PDF_SEO_LINK_FARM suggests a large number of outbound links, likely for SEO manipulation or to obscure the malicious destination. The embedded URL `https://ttraff.com/pify?keyword=employment+law+in+zambia+cases+and+materials+pdf` is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site.

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=employment+law+in+zambia+cases+and+materials+pdf
    • http://files.freshrescue.com/uploads/1/3/0/8/130813781/muleza.pdf
    • http://files.artworkbydar.com/uploads/1/3/1/3/131384249/0ace7f4f90c254a.pdf
    • http://voxokawuv.just-us-justice.com/uploads/1/3/0/7/130775934/9393508.pdf
    • http://xisategun.4tvirtualcon.com/uploads/1/3/1/3/131380600/mawodanazunubalax.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vuwunojipodaga.pdf
    • https://cdn.shopify.com/s/files/1/0431/5794/6522/files/fisicoquimica_atkins_6ta_edicion.pdf
    • https://cdn.shopify.com/s/files/1/0432/8570/8953/files/29817088495.pdf
    • https://cdn.shopify.com/s/files/1/0430/8323/5489/files/jarasitenuxifoveg.pdf
    • https://cdn.shopify.com/s/files/1/0431/9005/9176/files/wamajonikivirolitowibi.pdf
    • https://cdn.shopify.com/s/files/1/0431/9268/0611/files/59356037022.pdf
    • https://cdn.shopify.com/s/files/1/0433/0212/5733/files/bubakariren.pdf
    • https://cdn.shopify.com/s/files/1/0434/3041/2437/files/rowolutisaj.pdf
    • https://cdn.shopify.com/s/files/1/0429/4469/2383/files/80337244486.pdf
    • https://cdn.shopify.com/s/files/1/0435/1347/9320/files/gazawe.pdf
    • https://cdn.shopify.com/s/files/1/0434/1153/8072/files/wabafogogawizax.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_off00004d40.bin
a7bae765332a28aed0508f012534a09106a160ebc5bbd3a826382506aaf970a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D40 5640 bytes
font_01_sfnt_off00006073.bin
b26f3ec387fc2301356b89e776969e8e0b48ece6c4054b15daea179dfda72f5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6073 10176 bytes

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