Malicious PDF — malware analysis report

Static analysis result for SHA-256 b56e058f2a891ac8…

MALICIOUS

PDF

34.0 KB Created: 2020-09-18 03:43:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1dc55db2e14cd0b1a3217acf4648c1b8 SHA-1: b67154a31b09395d8a0985b6c0c4ee6528e9872d SHA-256: b56e058f2a891ac84e11c302699e750cd3530ff57dc30e0ae62014a5b3c54c72
184 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one pointing to a known malicious redirector at 'ttraff.me'. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'section 10-1 cell growth answers', suggesting a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious, and the presence of a link farm further supports malicious intent.

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.me/wix?keyword=section+10-1+cell+growth+answers In PDF document text
    • http://files.joshuabenkingfineart.com/uploads/1/3/1/6/131606807/gekizit_vevip_puwut.pdfIn PDF document text
    • http://files.charlottecrone.com/uploads/1/3/1/6/131637701/aefba4fa40518.pdfIn PDF document text
    • http://misisa.allbohochic.com/uploads/1/3/2/7/132712019/09d3a535427.pdfIn PDF document text
    • http://files.fccgreensburg.com/uploads/1/3/2/7/132710782/zunitedozukered_rogemadipajofuf_jagifosisoka_sevot.pdfIn PDF document text
    • http://files.evangghana.org/uploads/1/3/1/0/131070588/jafudobugitijuzo.pdfIn PDF document text
    • http://files.sda-studios.com/uploads/1/3/0/8/130873930/rabipas.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/1/0438/2438/2114/files/lubaralirunis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3123/8555/files/atlantis_aquaventure_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75130531250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7284/0090/files/gajelave.pdfIn PDF document text
    • https://37fa6f7c-12b0-4c53-97da-2bb9f36d0fe6.filesusr.com/ugd/a51aec_566fc4ad8eef47bcba06e61ef80c1e51.pdf?index=trueIn PDF document text
    • https://146bdef2-5f69-41e2-994f-25e6768f66c1.filesusr.com/ugd/1b9faa_5fdf6f8f59a347b3a625b4694493acd7.pdf?index=trueIn 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 7

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_off000046c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46C1 5480 bytes
SHA-256: deb3a84c1b1c292d8850c09b645997b737291e95a5ea2b10ddb971b13819b99e
font_01_sfnt_off00005979.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5979 9980 bytes
SHA-256: c1a4db552e936be7bb5e794d3f8cd710dbe1dabb820e649f6993854173e4da0a

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