Malicious PDF — malware analysis report

Static analysis result for SHA-256 837fe07fbb7a6e2a…

MALICIOUS

PDF

42.7 KB Created: 2020-08-08 11:00:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3befe95acf0b0f9c456c618197613a9a SHA-1: 1a4b5be65cb827388d2f4d964d5e50342a711558 SHA-256: 837fe07fbb7a6e2a6f47c6f8e2583e50106255526ed87f86019fa260db32df6a
120 Risk Score

Malware Insights

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

The PDF document contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=history+of+islam+timeline+pdf'. This indicates the document is designed to redirect users to potentially harmful content. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute malicious content. 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=history+of+islam+timeline+pdf
    • http://files.photoscopestudios.com/uploads/1/3/2/7/132740536/f21d525e3.pdf
    • http://files.frcgordon.org/uploads/1/3/0/7/130776657/7724960.pdf
    • http://files.sagewindowcleaning.com/uploads/1/3/1/0/131070911/pebumup.pdf
    • http://files.shorelinesolutions.ca/uploads/1/3/0/7/130776483/b6cb605a927.pdf
    • http://files.smilinggrape.com/uploads/1/3/2/6/132695336/30765274.pdf
    • https://cdn.shopify.com/s/files/1/0432/6785/0390/files/28263389538.pdf
    • https://cdn.shopify.com/s/files/1/0435/5745/3985/files/bank_treasury_management_book.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/78703367913.pdf
    • https://cdn.shopify.com/s/files/1/0432/6513/0660/files/directv_hr54_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/7369/1045/files/preterito_perfecto_de_subjuntivo_ejercicios_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0439/1659/1272/files/96386196674.pdf
    • https://cdn.shopify.com/s/files/1/0429/1490/6279/files/96449731212.pdf
    • https://cdn.shopify.com/s/files/1/0438/1786/1277/files/bedikamelebaxujixukilon.pdf
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/puwapotezugutav.pdf
    • https://cdn.shopify.com/s/files/1/0432/7922/0891/files/86370005779.pdf
    • https://cdn.shopify.com/s/files/1/0431/4074/3330/files/82502738401.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_off00006a5e.bin
10be5f2a96ebf3c8808f1744d65384cdc00bf416de223f98eb62f5b2f1fcf591		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A5E 5248 bytes
font_01_sfnt_off00007c28.bin
ad439277d151c02f42b4b54d6813455bb8fab733586cca09bf9d4624260cf236		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C28 9908 bytes

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