Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea0713cfb3aced22…

MALICIOUS

PDF

41.3 KB Created: 2020-08-10 03:26:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 83c194ceedb9ee7b4711c903ece356da SHA-1: d8cbb207c7b58be2af7aaf25f4bceb08af8fda1d SHA-256: ea0713cfb3aced22b7dfc1d2ff0dae78f1692727b8b79b71d4d459e3f3f928f2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous embedded links, with one identified as a malicious redirector pointing to 'https://ttraff.com/pify?keyword=informant+5+manual+pdf'. This suggests the document is designed to trick users into visiting a malicious site, likely for phishing or malware distribution. The presence of many links, including those hosted on Shopify, indicates a link farm strategy to improve search engine visibility for malicious content. No scripts were extracted from this sample.

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=informant+5+manual+pdf In PDF document text
    • http://files.davidgillaspie.com/uploads/1/3/0/8/130813461/biwimadikekakiw_gemalabodezug_dajemezezut.pdfIn PDF document text
    • http://files.gabrielhouseofmexico.com/uploads/1/3/1/8/131856353/pepedavinesixotojepu.pdfIn PDF document text
    • http://files.achslinkcrew.com/uploads/1/3/1/3/131382032/5611395.pdfIn PDF document text
    • http://files.empachernorthamerica.com/uploads/1/3/2/7/132710621/1950572.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/1/0430/1373/4563/files/24267496230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5488/3231/files/33978446925.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9353/2573/files/9813738430.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6353/2951/files/xosazotodinivegemele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6676/9051/files/242472135.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1379/9064/files/78883004302.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3769/5895/files/fixajezupa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/3726/5813/files/anatomia_do_cerebro_humano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dusegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1991/0811/files/66473563044.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9116/5333/files/760854854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2738/1920/files/dejeniguvemupibaxi.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006311.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6311 5072 bytes
SHA-256: 2c4dc9f1450d5c2d2eb27be86cdb9b4cf0df37f50126287cb127e843acae043c
font_01_sfnt_off0000743d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x743D 10592 bytes
SHA-256: b591bd766c9e0f8bc9a1230c99eb8e474e90bd693081a898b95c1f258fd5bf1a