Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9082edbfe52abf8…

MALICIOUS

PDF

45.9 KB Created: 2020-08-06 05:06:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a25eab408f3695a92d9b52c674a8be10 SHA-1: bdeda5da2893d1c13868f08aaf8ea3f7d606135d SHA-256: e9082edbfe52abf8439cae14e2323e745f28cb7d6baf9a24a245fdd9f7698374
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=bilangan+imajiner+pdf'. This indicates the document's primary purpose is to lure the user to a malicious site. The PDF also contains a large number of external links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic to distribute the malicious redirector. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=bilangan+imajiner+pdf
    • http://files.lamorteelectric.com/uploads/1/3/2/6/132695329/mijalaxafegube.pdf
    • http://files.mezmereyesbeauty.com.au/uploads/1/3/2/6/132696483/1772896.pdf
    • http://files.hamdasti.com/uploads/1/3/1/4/131453432/voxagezinupado.pdf
    • http://files.seratrevor.com/uploads/1/3/2/6/132696104/5082963.pdf
    • https://cdn.shopify.com/s/files/1/0430/7202/8823/files/13189192990.pdf
    • https://cdn.shopify.com/s/files/1/0440/8927/8616/files/le_millionnaire_minute_gratuit.pdf
    • https://cdn.shopify.com/s/files/1/0431/0161/8327/files/automotive_grade_linux.pdf
    • https://cdn.shopify.com/s/files/1/0436/8865/7049/files/lonozifibujubikapawipuz.pdf
    • https://cdn.shopify.com/s/files/1/0427/4018/7303/files/60613895912.pdf
    • https://cdn.shopify.com/s/files/1/0429/8306/3715/files/fodalepexesuko.pdf
    • https://cdn.shopify.com/s/files/1/0432/8567/6192/files/92363667857.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/98572357872.pdf
    • https://cdn.shopify.com/s/files/1/0431/7180/7391/files/fododuroresale.pdf
    • https://cdn.shopify.com/s/files/1/0430/3332/9817/files/finegebanomalorofodawizif.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005608.bin
2abce43ad6a0fdddeb8327e991536c70768bb77b00b1598b79a7c3b279816a15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5608 5308 bytes
font_01_sfnt_off0000680b.bin
a62bf1a35b7acdef92a5ee0bc53c488980b822d50c9acf48eb2f01fbb6344c41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x680B 14040 bytes
font_02_sfnt_off000094f3.bin
81b2af01912b5408fda2019c3ad86dde7cce6ff05ec96db407c7fe91c6643a35		 pdf-font-stream PDF embedded font (sfnt) at offset 0x94F3 16324 bytes

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