Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e2730b1ca3c457e…

MALICIOUS

PDF

38.4 KB Created: 2020-09-20 04:00:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0a66e5cc20bf35607defa28afbf45eed SHA-1: c7028e992ad0660a790b68c08d07307fa2f2ceed SHA-256: 1e2730b1ca3c457e24050d58b9c9b4ee16b539bae7f26d56c655f9a070a7f716
184 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.me/wix?keyword=your+freedom+vpn+client+premium+apk', suggesting a lure related to VPN software. The presence of a link farm heuristic further indicates malicious intent to distribute links. 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.
  • 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=your+freedom+vpn+client+premium+apk In PDF document text
    • http://files.stdavidscranbury.com/uploads/1/3/0/7/130739651/wakojeledaguzabakul.pdfIn PDF document text
    • http://retug.ellisonglobalinvestigations.com/uploads/1/3/1/1/131163540/dcd1aed.pdfIn PDF document text
    • http://roxofewoz.themistyvalley.com/uploads/1/3/0/9/130969813/nituta.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://1343aa74-3549-4b7b-83df-387dc37b5070.filesusr.com/ugd/d2759c_8b7aa98f36734026bf3e1d67fe97c92c.pdf?index=trueIn PDF document text
    • https://4d16f4f3-0ce5-47d7-a3f4-5ce8cbca061e.filesusr.com/ugd/97493d_08c89f394d8340a9a7427c0e60300498.pdf?index=trueIn PDF document text
    • https://677917d8-fce1-4269-9c3d-cbcf901f4758.filesusr.com/ugd/b371d9_1a22d4faecb1407285df54fe5fa58514.pdf?index=trueIn PDF document text
    • https://8e308137-8eab-4980-88a8-c6b6cbddfeb1.filesusr.com/ugd/268ab1_56e67368d019493684ee35dd14870265.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7752/4888/files/top_10_chinese_anime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6483/4713/files/simple_medical_certificate_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8237/4561/files/wejisegiwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0470/8879/5806/files/sorupe.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 1

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_off000057be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57BE 5208 bytes
SHA-256: b9f5d6cefcc15442c5d7d4e88f6a765478362f2103809d42399961d61c7514e1
font_01_sfnt_off0000696b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x696B 10384 bytes
SHA-256: 3672eb8f97a04d9e4e1731e11c7221a2199222a85695fd564bcb2e5d4ba1f394

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