Malicious PDF — malware analysis report

Static analysis result for SHA-256 0db25ec2d3129a2d…

MALICIOUS

PDF

37.3 KB Created: 2020-07-10 13:11:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-24
MD5: 7f72ee6a5124392619d1e003d8877d1d SHA-1: 0bdaf5e6893f63cf01e5ec9449c0ad1ec5e0db63 SHA-256: 0db25ec2d3129a2dab5a552992d22903c49c6f09c4ee5338bb2e364d47c5d6e3
184 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to disposable domains and redirector infrastructure, indicating a link farm designed to distribute traffic to potentially malicious sites. The primary redirector URL is https://ttraff.cc/wb?keyword=forecasting%20volatility%20in%20the%20financial%20markets%20pdf, which is flagged as malicious. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to direct users to harmful content, likely for SEO manipulation 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.cc/wb?keyword=forecasting%20volatility%20in%20the%20financial%20markets%20pdf In PDF document text
    • http://files.missjordansclassroom.com/uploads/1/3/0/7/130776841/5406440.pdfIn PDF document text
    • http://files.naturaltreatmentjointpain.com/uploads/1/3/1/4/131409909/tipedulid.pdfIn PDF document text
    • http://files.brewerstreetfarmhouse-weddings.co.uk/uploads/1/3/0/9/130969552/d2897c68.pdfIn PDF document text
    • http://files.jyothischool.com/uploads/1/3/2/7/132711965/c45f672869f4c2.pdfIn PDF document text
    • http://files.amazingcreationstaxidermy.com/uploads/1/3/1/1/131163953/fukamedolotisutizif.pdfIn PDF document text
    • http://files.coastalbenddistillingco.com/uploads/1/3/1/1/131164047/kejiwenolevixipuwof.pdfIn PDF document text
    • http://files.stephendalzell.com/uploads/1/3/1/3/131379815/ruvoguvezomusu.pdfIn PDF document text
    • http://files.blmslibrary.org/uploads/1/3/1/6/131606644/ebdfe5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://zividiket.files.wordpress.com/2020/07/fefiwowijepiwopidu.pdfIn PDF document text
    • https://zosikex.files.wordpress.com/2020/06/gajamum.pdfIn PDF document text
    • https://sepozux.files.wordpress.com/2020/07/93940059135.pdfIn PDF document text
    • https://jakasizox.files.wordpress.com/2020/07/muzew.pdfIn PDF document text
    • https://zafujuzokud.files.wordpress.com/2020/06/daladajizazedaneg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/63912397784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0185/5646/files/lobuzegegamojum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72890356131.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_off00005334.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5334 5540 bytes
SHA-256: 7d0fbfadf0bfa53ba5b8ca9fcad5cabdaafd9947ea66d2c5f569a8c870c34781
font_01_sfnt_off000065d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65D9 9980 bytes
SHA-256: 62dce52b6dbaa39b606a16ca1f9c6ba1341bf9e621ef07008800467ef06964a6

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