Malicious PDF — malware analysis report

Static analysis result for SHA-256 efb1417a7cdf31da…

MALICIOUS

PDF

43.5 KB Created: 2020-11-07 11:21:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 58a57d3cd82a5b89249e9f8b0039c65f SHA-1: 612824098156fdfa765bfe6618acf2713f66f573 SHA-256: efb1417a7cdf31da6607857ec595a237c92655382159257cf92e86551175a2b5
184 Risk Score

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://traffmen.ru/123?keyword=jesus+through+middle+eastern+eyes+pdf In PDF document text
    • https://jawowigo.weebly.com/uploads/1/3/0/7/130774982/xovaragimogerem.pdfIn PDF document text
    • https://runigofotizete.weebly.com/uploads/1/3/4/4/134433234/gufejikodomimema.pdfIn PDF document text
    • https://pebewaviwukak.weebly.com/uploads/1/3/4/4/134463457/1553422.pdfIn PDF document text
    • https://zonuloxovuge.weebly.com/uploads/1/3/4/4/134469127/6801931.pdfIn PDF document text
    • https://tenabawik.weebly.com/uploads/1/3/2/7/132710661/tomirexabefunonumas.pdfIn PDF document text
    • https://relotozaku.weebly.com/uploads/1/3/4/2/134266658/6161e0ebde0a.pdfIn PDF document text
    • https://xeveguxugagu.weebly.com/uploads/1/3/4/6/134600238/7268275.pdfIn PDF document text
    • https://dejolezeg.weebly.com/uploads/1/3/2/8/132815968/4189472.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f3fe3421-4ebc-42d3-9d5c-ca6532ecdc9f/gebijiwotisize.pdfIn PDF document text
    • https://wejogude.files.wordpress.com/2020/11/niwasegini.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f1d299e-e051-49ca-ab25-582b454079ad/7th_wedding_anniversary_gifts_by_year.pdfIn PDF document text
    • https://s3.amazonaws.com/xarojapi/80189363595.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_off00006711.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6711 5544 bytes
SHA-256: c9a2b96c2118727f188f904bb4a8df97f301152ac10ea2edbebc4e82bb5fb80b
font_01_sfnt_off000079ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79CA 12216 bytes
SHA-256: e9e6b4e35e95fbc2539ab5523a081051b7c4842dcbca77b3a513e78ce4acba6c

Open this report in the interactive analyzer, or submit your own file for analysis.