Malicious PDF — malware analysis report

Static analysis result for SHA-256 de065971b318dc03…

MALICIOUS

PDF

41.0 KB Created: 2020-09-12 09:40:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 69719ddca3a53734b9b669cab53eb264 SHA-1: 7d60f4dcce31d9cbda769a3c80f154a7c2f49318 SHA-256: de065971b318dc03bd32e1fdffdf60c28f65cb43d37c987d925e8ae8078369a3
184 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to redirect users to malicious infrastructure. The primary malicious URL identified is https://ttraff.club/pify?keyword=sinonimo+de+almacenar+informacion. The document body itself is heavily obfuscated and contains metadata suggesting it was generated by wkhtmltopdf, but the embedded link farm is the clearest indicator of malicious intent. 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.club/pify?keyword=sinonimo+de+almacenar+informacion In PDF document text
    • http://files.whitneykimpton.com/uploads/1/3/1/0/131070872/xusodedavi_figozuw_muxujiliwekivi.pdfIn PDF document text
    • http://fapefe.warmanddryuk.com/uploads/1/3/1/4/131453358/3598969.pdfIn PDF document text
    • http://files.2319thestore.com/uploads/1/3/1/3/131398555/wojod-gizelaben.pdfIn PDF document text
    • http://remavevan.en.skandiaorgeln.com/uploads/1/3/1/4/131438304/besasuso.pdfIn PDF document text
    • http://wikemap.bsupolice.com/uploads/1/3/1/1/131164250/lorilavurapoxi_subolexekejovi_lupewoxi_teradiza.pdfIn PDF document text
    • http://pifuwex.nc-consulting-enterprises.com/uploads/1/3/2/6/132681482/c62354242a70.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/1/0431/6908/7642/files/codeword_barbelon_danger_in_the_vatican.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4382/3517/files/40286735841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1763/3949/files/50418590977.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/ab5adf_2644e4323c6f455681638b4b3588893b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/4733ca_081442ddccbb4cd9bdfc70601de20867.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/296484_b96a4590fad44882aaa6ac9659cdbea4.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/0f9ef0_a798d8e7dd4f47a9b9b0761911e399c7.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/5a1791_24319b85739b49009f6d148de9de2e7d.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_off00005f48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F48 5092 bytes
SHA-256: 8a197b2f510b0c7a9768e3b29d102d3402fb68e7c3f7b7464ebac24307e2033c
font_01_sfnt_off00007082.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7082 11368 bytes
SHA-256: b23e229fa0fddf02e477a73aa17a4b15bd35ac1fc73c25184b3e3e26cf4d00b6

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