Malicious PDF — malware analysis report

Static analysis result for SHA-256 723ec1ff08c068df…

MALICIOUS

PDF

50.4 KB Created: 2020-08-03 01:45:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 399f570fefe2da1f7fa29ea39e1e4352 SHA-1: 2ade40486488b59f60e7f2a4168328e35511e080 SHA-256: 723ec1ff08c068df7c0cd2c883363c3b19f20c35bcbbe917ed6dfa8f9ccd80ba
194 Risk Score

Malware Insights

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

This PDF document contains numerous links, many of which point to a redirector service (ttraff.cc) that is flagged as malicious. The document body itself contains obfuscated text and a URL that appears to be part of the redirection chain. The presence of a large number of links suggests an attempt to create a link farm for SEO manipulation or to distribute malicious content through various channels.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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=cmdkey+rdp+ports In PDF document text
    • http://files.bunnaagri.com/uploads/1/3/0/8/130813783/mugenamatoxa.pdfIn PDF document text
    • http://files.ascotpaddocks.co.uk/uploads/1/3/1/4/131406826/mofola.pdfIn PDF document text
    • http://files.peopleright.net/uploads/1/3/1/8/131858287/b6acc5c9.pdfIn PDF document text
    • http://files.mvnatmed.com/uploads/1/3/0/8/130873795/komuruzimanasof.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/8883/3701/files/tmux_rename_window.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8150/5695/files/bafakaluvapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xazijejizamoketabuguta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3516/4835/files/36732177681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6164/7262/files/feginifikunivamedefofiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3364/7525/files/26790890348.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0669/7367/files/db_password_filetype_env.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5685/5190/files/38951232934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6127/2983/files/divusekugolobemafozej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8638/8136/files/31207429952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1877/2903/files/zabogewozesigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6273/0645/files/13813852235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/36794989837.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000672e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x672E 4936 bytes
SHA-256: affc5ac4e9730f3f9c44d3b03eba9fa0bded6187058825027adca2c116466d63
font_01_sfnt_off000077ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77EA 15064 bytes
SHA-256: d587f6d672d5177ba7989e5a90d60dfb0caf4665175990eb7dbac51cbfb3a736
font_02_sfnt_off0000a7c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA7C2 16220 bytes
SHA-256: 8305f0426085e1abc5366729f89f3a456acd9f16b7235796d4cf581201bc90e7