Malicious PDF — malware analysis report

Static analysis result for SHA-256 a63604a4ec23e5fa…

MALICIOUS

PDF

39.7 KB Created: 2020-10-11 07:27:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3a7214c80dce2cc9652f3199259a331f SHA-1: 59041bab9a7266c36ab43eb25e28279a7c0dcd29 SHA-256: a63604a4ec23e5fad0aeff663ad9d7572c2289ea5131ca0439b10f2592d2643c
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a mass of external links, with several pointing to known malicious redirectors like 'ttraff.club'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.club/pify?keyword=que+es+un+autorizado+red' and a link farm of 24 PDF files, indicating a likely phishing or malware distribution attempt. No scripts were extracted, limiting the analysis of specific execution behaviors.

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.club/pify?keyword=que+es+un+autorizado+red In PDF document text
    • http://mimam.sandybayphotography.com/uploads/1/3/1/3/131398430/pegelidimirorom.pdfIn PDF document text
    • http://files.haydeelee.com/uploads/1/3/1/3/131383791/9444402.pdfIn PDF document text
    • http://files.pphss.com/uploads/1/3/1/4/131438667/nojexi-metame-savitimevaxi-sarud.pdfIn PDF document text
    • http://xukizi.cattmurrayinteriors.com/uploads/1/3/1/4/131406274/2630206.pdfIn PDF document text
    • http://files.bckaleidoscope.org/uploads/1/3/0/7/130740173/9532389.pdfIn PDF document text
    • http://tamer.arizonacornholeassociation.com/uploads/1/3/0/8/130874253/ebb02ed9d6fe7.pdfIn PDF document text
    • http://files.yongintaekwondocollege.com/uploads/1/3/1/6/131637271/2030228.pdfIn PDF document text
    • https://site-1039539.mozfiles.com/files/1039539/39598369347.pdfIn PDF document text
    • https://site-1048248.mozfiles.com/files/1048248/21436590502.pdfIn PDF document text
    • https://site-1037057.mozfiles.com/files/1037057/fezujoxagilojatofo.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/1/0483/7120/4245/files/givebisonale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/2913/1175/files/rolipogilapinapi.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 4

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_off00005d81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D81 4896 bytes
SHA-256: 63d8dd7cb9331991f58719eb9f6e2939d7d0d12498c5f317bd365819f3b85cca
font_01_sfnt_off00006e38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E38 10448 bytes
SHA-256: db7b8d44870766a96f8a80e0b3fad4648370324e4a0b0e3ee63375db685ad61c

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