Malicious PDF — malware analysis report

Static analysis result for SHA-256 128b6714c783c619…

MALICIOUS

PDF

45.7 KB Created: 2020-08-28 03:03:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 673705949e74a7e34e0dabcf080650bd SHA-1: e903a7e5c036944e02a62c6eae798b6c4da63e6b SHA-256: 128b6714c783c619ec9312be32bd0ec99569548450338d44d5fd381bd473686f
194 Risk Score

Malware Insights

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

This PDF document contains numerous links, including one to a known malicious redirector at `https://ttraff.com/pify?keyword=electron+configuration+practice+work`. The document body, though heavily obfuscated, appears to contain text related to 'electron configuration practice work', suggesting a lure to disguise malicious activity. The presence of a link farm and a redirector indicates an attempt to lead the user to potentially harmful content, likely for phishing or malware distribution.

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.com/pify?keyword=electron+configuration+practice+work In PDF document text
    • http://files.thejoyofsyntax.com/uploads/1/3/1/8/131860204/310485.pdfIn PDF document text
    • http://files.mtdistrictcc.com/uploads/1/3/1/4/131406222/1372901.pdfIn PDF document text
    • http://lajalo.ourladyoflourdesharrisonville.org/uploads/1/3/0/7/130739240/zukera.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/1/0446/0986/3843/files/binh_php_tn_t_dnh_cho_phi_p.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7601/8585/files/tail_call_optimization_javascript.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3119/0952/files/jepake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1220/2389/files/android_games_with_ps4_controller_support_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3484/4059/files/free_porn_passwords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7121/8588/files/58937975299.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5665/0650/files/this_was_a_man_jeffrey_archer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6491/0243/files/bojude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6535/2093/files/exploratory_data_analysis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5450/5882/files/43674355822.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

Related samples 5

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_off00005ee5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE5 5116 bytes
SHA-256: a40ef40d17c3c164721371dba63baf1d55e768c326e0d8a842c1b2b1d02ca681
font_01_sfnt_off0000707b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x707B 10436 bytes
SHA-256: f70f02e262435ecf265a325844e1a8d73b567631d10513d1e713525641ebac68
font_02_sfnt_off00009425.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9425 16288 bytes
SHA-256: 135b61bc7a41198c29115aa914e1ed5c9eb5abf4e5d7d8c7271b2eeba2326a89

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