Malicious PDF — malware analysis report

Static analysis result for SHA-256 02b1813c44369a4d…

MALICIOUS

PDF

44.4 KB Created: 2020-09-18 08:19:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 430fee57de90ba6bc12597d5839e83c4 SHA-1: ba125358baecd8594a81a7b40d27bf43ec2ac883 SHA-256: 02b1813c44369a4de16f0a9ab23e20fc89a143f1ae55d9fc3ca9d3235f00092f
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a large number of embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, also contains the malicious URL. The ML classifier strongly indicated maliciousness, and the presence of a link farm suggests an attempt to manipulate search results or distribute malicious content. No scripts were extracted, but the overall structure points to a link-based attack.

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=destiny+2+precision+kills In PDF document text
    • http://tijuned.cassidyraegaiter.com/uploads/1/3/2/7/132710657/gupixusukivujanajanu.pdfIn PDF document text
    • http://gepas.premsc.com/uploads/1/3/2/7/132740353/553806.pdfIn PDF document text
    • http://files.tgmwindsteppers.com/uploads/1/3/1/6/131606046/madamaroverumix-wokatojub-lepugogivu.pdfIn PDF document text
    • http://nubudovog.drivingyourdream.com/uploads/1/3/1/4/131454057/898f83.pdfIn PDF document text
    • http://files.suigenerisjewelrydesign.com/uploads/1/3/1/6/131606094/5435671.pdfIn PDF document text
    • http://zoketomew.pratasabavacation.com/uploads/1/3/0/8/130874218/kajejizetaze.pdfIn PDF document text
    • http://sosisudi.thesilvergoddessjoanib.com/uploads/1/3/1/3/131383544/1072827.pdfIn PDF document text
    • http://files.taylorlien.com/uploads/1/3/2/7/132741194/98f03a.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/1/0433/1077/6473/files/ortopedia_y_traumatologia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0821/9547/files/11931764787.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2837/2886/files/the_perception_deception.pdfIn PDF document text
    • https://2057899c-70f8-45fc-a13d-b7d23341fee4.filesusr.com/ugd/8a05ec_fdcaa73dfd41464089ddb4604e57c495.pdf?index=trueIn PDF document text
    • https://65dddd6c-5736-4937-b3a2-7563c725ad11.filesusr.com/ugd/48f461_88ab002b6e654f5ea433fb6263e76dc1.pdf?index=trueIn PDF document text
    • https://44705745-8ce4-410a-9511-9b47e8de4d7f.filesusr.com/ugd/6e13d9_e0d6c754df6a4b9580b49f5486784685.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_off000065c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65C2 5016 bytes
SHA-256: 79cc7b36b4d8ef4d9ae6f8c4dc8e4939d747910866ea72e0ae269e5697f81bc9
font_01_sfnt_off000076fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76FC 14872 bytes
SHA-256: a930b46e38d5668b93fe1e7b2d97a57ef0c1b071413a7b93513d10c013591510

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