Malicious PDF — malware analysis report

Static analysis result for SHA-256 1062714ae71d8b51…

MALICIOUS

PDF

36.3 KB Created: 2020-08-11 14:30:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0aaa2addfa6db4f5d49ed6069f5e39b7 SHA-1: 2ed5b1e4e303b7d5d2580ff8ce4e035cd9e429fe SHA-256: 1062714ae71d8b51517586232edb64f3f9e5b8885804d46c027dd6e821f00aa3
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The ML classifier also flagged the PDF as malicious. The document body appears to be malformed or obfuscated, but the presence of the malicious URL and the link farm heuristic strongly suggest an attempt to redirect users to harmful content, potentially for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=kandungan+belimbing+wuluh+pdf
    • http://bemop.saveurlifeoutreach.com/uploads/1/3/1/4/131483152/39f6bcc43.pdf
    • http://files.chanabarriger.com/uploads/1/3/1/4/131413905/pafadanububovu.pdf
    • http://givonuf.belfairphotogroup.com/uploads/1/3/1/4/131407089/8811436.pdf
    • http://files.solidrockglobal.org/uploads/1/3/1/3/131383657/583346.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/8429/9934/files/vulegilavip.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13977314479.pdf
    • https://cdn.shopify.com/s/files/1/0430/6989/8914/files/zekufananuzenetox.pdf
    • https://cdn.shopify.com/s/files/1/0433/7618/1400/files/7817913746.pdf
    • https://cdn.shopify.com/s/files/1/0433/8126/0440/files/vowamilojumogiguxodesum.pdf
    • https://cdn.shopify.com/s/files/1/0432/1057/1940/files/jijivobefelebegageko.pdf
    • https://cdn.shopify.com/s/files/1/0431/0610/7552/files/80828077672.pdf
    • https://cdn.shopify.com/s/files/1/0432/1535/6067/files/101_zen_stories.pdf
    • https://cdn.shopify.com/s/files/1/0434/6383/5814/files/36982131139.pdf
    • https://cdn.shopify.com/s/files/1/0433/7814/7491/files/31443174100.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65022979336.pdf
    • https://cdn.shopify.com/s/files/1/0431/7023/4527/files/36532644149.pdf
    • https://cdn.shopify.com/s/files/1/0439/5650/2686/files/the_apocryphal_new_testament.pdf
    • https://cdn.shopify.com/s/files/1/0432/7620/6238/files/defisoludofalefozineb.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f59.bin
f5d7647b97235d6a600d1cdb1939b070180f6c67efbceb8805f62ed3c7d903e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F59 5384 bytes
font_01_sfnt_off00006199.bin
70a90616d6fea8d6c047026e26c4afb2c9e186198cc2f60f57b655188317df44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6199 10144 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.