Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ecfbb0ec7856825…

MALICIOUS

PDF

44.9 KB Created: 2020-07-30 07:18:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 18e90415e01a38336a93e6344c5f7d6b SHA-1: e4ba4cd94da270aa3869a550899e825d11bf8654 SHA-256: 7ecfbb0ec7856825cd6da737321785e7c22cc8837351629cf0d8ec1330c5bf96
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links designed to create a link farm, directing users through a redirector to potentially malicious content. The primary redirector URL is identified as malicious infrastructure. While no scripts were explicitly extracted, the PDF structure and link farm indicate an attempt to drive traffic to malicious sites, 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=general+zoology+miller+pdf In PDF document text
    • http://files.baysideoakland.com/uploads/1/3/2/6/132695887/79653d63.pdfIn PDF document text
    • http://files.totalvolumeagency.com/uploads/1/3/1/1/131163669/36417.pdfIn PDF document text
    • http://files.alaskabg.org/uploads/1/3/2/8/132814371/685007.pdfIn PDF document text
    • http://files.westsideyouthministry.org/uploads/1/3/1/3/131380456/xalegir.pdfIn PDF document text
    • http://files.theurbangardeninitiative.org/uploads/1/3/1/3/131380158/sazedofuli.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/1/0440/4012/6614/files/zisewewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8052/4710/files/punidadopib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8606/2495/files/bedunagozivadarital.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0515/5224/files/79962451420.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2448/0416/files/kakoredopejimabom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7306/1532/files/simifogowobabew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/41106812487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5663/6828/files/73960469116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6888/3098/files/29847234478.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9685/1103/files/libesepegive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9571/8040/files/97992523789.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3164/9689/files/52507930860.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2358/0830/files/fosizolazulefobunamux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8315/9969/files/relupivewufewafalutugeli.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000071f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71F8 5072 bytes
SHA-256: 66b35bd9f17fd9b4d6118b3046cd266d7cc268cdd390d7a868315eee13aa0003
font_01_sfnt_off00008328.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8328 10488 bytes
SHA-256: 5d6e06772b2acdf55f0cc21f54a4ed0826d5ab2c7b0c087bcb267bb3cc7e4d75

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