Malicious PDF — malware analysis report

Static analysis result for SHA-256 53d01f3025dde8b3…

MALICIOUS

PDF

41.8 KB Created: 2020-09-19 10:10:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 62d5aa48ddaf1dd87c391fe0964a7636 SHA-1: 55595b975405b524ea6427b0a9d0b3b7d9e895e1 SHA-256: 53d01f3025dde8b3525840dd13d2ac757c13565962576b7d677d023978491297
184 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with several pointing to known malicious redirector infrastructure. The document body, though heavily obfuscated, also contains URLs that are part of this link farm. This suggests the primary purpose is to direct users to malicious sites, potentially for phishing or malware distribution.

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=this+is+the+only+level+4+walkthrough In PDF document text
    • http://fagoluxa.escollins.com/uploads/1/3/1/6/131636817/ec98eb7f086d2.pdfIn PDF document text
    • http://files.esulix.com/uploads/1/3/1/0/131070872/f1411b1453c418.pdfIn PDF document text
    • http://jupun.blackgypsymamawagon.net/uploads/1/3/1/4/131407395/tuvig.pdfIn PDF document text
    • http://kajegina.whartontrust.org/uploads/1/3/1/3/131383599/59a6696b95bdc.pdfIn PDF document text
    • http://files.blowingoakfarm.com/uploads/1/3/0/9/130969498/nidixulusus_fojetorelamuti_pupodowagudowuk_dopoxobi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://96a4d579-2da6-4ab9-b8d0-f698dccb18e8.filesusr.com/ugd/5926b4_22e84ba26c7d480aba7ee889cb553b7c.pdf?index=trueIn PDF document text
    • https://94253946-ba7a-4218-a7ac-0dfb80037d4e.filesusr.com/ugd/1e533a_7d787a3306d948b1a30e3ae03b05be68.pdf?index=trueIn PDF document text
    • https://f625b073-d6c3-4034-bafe-e6b7ad010f00.filesusr.com/ugd/45fd81_2176d7694080451f9c8ff328d656b174.pdf?index=trueIn PDF document text
    • https://6e79251d-cbb7-4ba4-a77b-f88d0577cefe.filesusr.com/ugd/38062a_eb48ed658e6f4c2b8d8f9a199a335322.pdf?index=trueIn PDF document text
    • https://acfeec44-fff6-466f-bce5-71a56d29e979.filesusr.com/ugd/df7b34_51babb22ae3641aab4c89eb48270bc7f.pdf?index=trueIn PDF document text
    • https://21913ff8-d3b8-4acf-aace-3d464277ec7c.filesusr.com/ugd/8e7730_4eece14e110b4600a5a686ad6d401642.pdf?index=trueIn PDF document text
    • https://bd6f63d4-2aba-4d80-8034-0819d2921de2.filesusr.com/ugd/3ed902_6f087aac7d07406b89e9606cbbfd4427.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3664/5275/files/somosos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8072/8224/files/41448804782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1434/9215/files/21893883058.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_off0000644e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x644E 5300 bytes
SHA-256: 5965ee5aceccc4a6faf03041b50fe10d473623858e66f3993d459c16c36f0e3f
font_01_sfnt_off00007673.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7673 10636 bytes
SHA-256: 2d3000d7f72f45c28cf2971063023fa2ddc9e6f73beab8250979e5812c9750da

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