Malicious PDF — malware analysis report

Static analysis result for SHA-256 f74525f837cbbab1…

MALICIOUS

PDF

43.4 KB Created: 2020-08-17 02:58:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 461f2bfb0b3f315bf7c2acbd18e1b572 SHA-1: 594b5d79de04cbf8627eb7ede91830f93b26a59f SHA-256: f74525f837cbbab1e9cdb3e93fc5555240b977e2f3719b0820b3a2fd8398f6fb
202 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1059.003 Windows Command Shell

The PDF contains a heuristic firing for a malicious redirector link pointing to ttraff.com, and also exhibits characteristics of a PDF link farm, with numerous links to shopify.com PDFs. The document body, though heavily obfuscated, contains text that suggests a technical topic ('Eclipse oxygen for ubuntu 16. 04') and includes a URL that aligns with the malicious redirector. Additionally, a heuristic indicates the document attempts to lure the user into executing commands via clipboard manipulation, suggesting a multi-stage attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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.com/pify?keyword=eclipse+oxygen++for+ubuntu+16.+04 In PDF document text
    • http://files.lasalservices.com/uploads/1/3/1/4/131437660/kazojojomox.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/1/0434/6124/7129/files/54468553725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4843/3829/files/14794910539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/8436/2407/files/50490691945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3495/9256/files/chemistry_laboratory_apparatus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2042/7157/files/bloons_tower_defense_3_hacked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7515/7670/files/vernier_caliper_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6230/5702/files/kekipadofanoreguw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94608223162.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3964/5093/files/nisijabufozibas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7709/7886/files/81754717592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2832/4257/files/fetabuxafiledeguwasu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7895/0810/files/mebuxuwavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7108/5475/files/28942474401.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7257/7946/files/talipexorupopitutijidu.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006068.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6068 5708 bytes
SHA-256: 440560f6805471479908ad4abe4db3c714fb18a91ef8a21c856261f63c7700ba
font_01_sfnt_off00007404.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7404 1800 bytes
SHA-256: e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d
font_02_sfnt_off00007c92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C92 10572 bytes
SHA-256: 5fb9d0d5b72f9ee01209c213ed2ed44ddce2c3283d6a8f2ccc259d1f68a30914

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