Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d0be345a03c49ec…

MALICIOUS

PDF

46.0 KB Created: 2020-08-23 01:27:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 46908f2846e6099ba4986f5c5e74a799 SHA-1: 70d12ca92736a11ad1b2127cb4a24ab987b454ca SHA-256: 4d0be345a03c49ec454257557d257b59c891e854d2994654bdc484f3b8875eef
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious URL, disguised as a free corporate invitation card design template. This is further supported by heuristics indicating a malicious redirector and a PDF link farm. The document body and embedded links suggest a social engineering lure to drive traffic to potentially malicious sites.

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.ru/pify?keyword=free+corporate+invitation+card+design+template In PDF document text
    • http://files.audsnanns.com/uploads/1/3/2/6/132683400/3685463.pdfIn PDF document text
    • http://files.barronparkpreschool.com/uploads/1/3/0/9/130969663/vunuse_dufakufa.pdfIn PDF document text
    • http://sifaleg.littleprincedoulaservices.com/uploads/1/3/1/4/131410538/vapenadupiwem.pdfIn PDF document text
    • http://files.governmentgrants.net/uploads/1/3/0/7/130738524/4093892.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6000/1957/files/nowinulogijotuxademat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1609/3849/files/sogemewimapesavobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8581/6218/files/11414863754.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/58585016777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/7783/7476/files/bipulalozixud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3206/7748/files/13968231262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7757/4551/files/nozirikofolis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6717/9165/files/fiviwim.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ec0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC0 5196 bytes
SHA-256: 74ebd013787fd5d29ed33f3ac2aed0cbe72983d21f98257ded320f1418f48b9f
font_01_sfnt_off00007044.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7044 2268 bytes
SHA-256: 2b17894289ef4ac549ca5ccbfe538e6ebde94701791c0542cba9a71f2d67f349
font_02_sfnt_off00007a57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A57 10096 bytes
SHA-256: 12eab79607c002848c637e715b6e248ce0a2c96bccd5eb12be93e1f6a1b0c64b
font_03_sfnt_off00009cd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CD6 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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