Malicious PDF — malware analysis report

Static analysis result for SHA-256 741fe1ad35a56e85…

MALICIOUS

PDF

94.3 KB Created: 2020-08-18 22:39:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e3ab457f5de2f5af66bbfbc0abcf4d83 SHA-1: 8074a4088a791bb149f99f12214a0951ca492cd4 SHA-256: 741fe1ad35a56e85e87403b44fca5f5afd8e3aee434a59f0712ea58e1ed52e93
194 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a known malicious redirector, ttraff.com, which is used in SEO link farms for phishing. The document body, though heavily obfuscated, contains text that appears to be a lure for a tutorial, suggesting a pretext for the malicious links. The ML classifier also strongly indicated maliciousness.

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=android+studio+3+kotlin+tutorial In PDF document text
    • http://files.sholansun.com/uploads/1/3/2/7/132740997/f3ec827.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/1/0431/5630/8123/files/bopunakaratonesawugifemos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9586/6010/files/lilebinelojabogonase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9915/2799/files/kifasudijoganojulame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8277/6725/files/89384619755.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9604/6752/files/vorawusaluwimowoluviwujof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1103/7589/files/65491954941.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6563/7019/files/zesebokunekiremezike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1087/2728/files/jukoxikipikewara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6547/5229/files/ripamapumivunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4693/5460/files/91181531333.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dagezaluvonanapukinuwit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9010/7815/files/de_finibus_bonorum_et_malorum_english.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 1

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_off000112d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112D3 5036 bytes
SHA-256: cb6b98a7cc88822330129120c563d2e570fd3b651671cd6cac0b5114b8a3abe7
font_01_sfnt_off000123fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123FD 15892 bytes
SHA-256: d70d2a3923905123b3776640ec578d24b5c6a2ae4a2684ae6421e5fc55ae6d3e
font_02_sfnt_off00015619.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15619 16296 bytes
SHA-256: 1315ac7181716559bd6a329722203f1dce8f7b5d625759d8b2ae0fe1f26b3b8d

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