Malicious PDF — malware analysis report

Static analysis result for SHA-256 95f02822cc73a64f…

MALICIOUS

PDF

40.2 KB Created: 2020-11-08 14:15:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: b59c70060e5fc7ca312205eebb6c5843 SHA-1: daebc618bea900e460cbdc8327110f9cb59d436d SHA-256: 95f02822cc73a64f29675bbb1ffb1660fc01731f6387bfcaddcfbdee4ffe9a62
66 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains an embedded URL that redirects to a suspicious domain, likely intended to deliver a malicious payload or phish for credentials. The ML classifier strongly indicated maliciousness, and the document body, though obfuscated, contains references to URLs and keywords that suggest a lure. No scripts were extracted, but the presence of multiple external links points to a link-farming or redirection scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffking.ru/aws?keyword=lunenburg+high+school+calendar PDF link annotation
    • https://lapebezufidasaz.weebly.com/uploads/1/3/4/3/134316617/gabonel-zixufupodofas-lumajadata.pdfIn PDF document text
    • https://babinekisifuve.weebly.com/uploads/1/3/2/6/132696104/vasobujixoremiwaj.pdfIn PDF document text
    • https://mozesewopizudal.weebly.com/uploads/1/3/4/3/134363743/441866.pdfIn PDF document text
    • https://todijaxazifaro.weebly.com/uploads/1/3/4/3/134342800/f81ad0caa661e.pdfIn PDF document text
    • https://zugogulubituwo.weebly.com/uploads/1/3/4/2/134266111/gerimixubu_welev_lijugopi.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/dozafawegikuxoto.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vigevot/bazav.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuduwonifa/32326543560.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03d131c0-d6ff-44e3-b9b0-43c372aa0573/20395858926.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d34a6ebb-4f4d-4111-85be-6f18b560fdd8/89613110590.pdfIn PDF document text
    • https://s3.amazonaws.com/bofake/9482188949.pdfIn PDF document text
    • https://s3.amazonaws.com/fomaralunex/2615533683.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxenipup/settlor_of_trust_dies.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ebf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EBF 5280 bytes
SHA-256: 2bb3aa41ed3a7b8f53df3c79f166d3e20a78271d7ddd974a194b673900619e74
font_01_sfnt_off000070ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70AE 10340 bytes
SHA-256: e575f57640db8bd093556afcc2cb7ef0225c5bad1f03cdaad3d9c4f911abf149

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