Malicious PDF — malware analysis report

Static analysis result for SHA-256 074b872fb52d6ab1…

MALICIOUS

PDF

41.8 KB Created: 2020-11-07 23:39:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 194d0a7920dc9061e9da777f0b5026ea SHA-1: dc3270539c10f4144d7077128207c12ee140996e SHA-256: 074b872fb52d6ab1da7dd885cac52c1b0d5c51fbcb05db23af568379e1a3fd85
66 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

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://trafficel.ru/aws?keyword=google+data+studio+motion+chart PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4393016/normal_5f9da7e11ec8b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422877/normal_5f98400065763.pdfIn PDF document text
    • https://jutixabit.weebly.com/uploads/1/3/4/0/134017524/guxiw_maworad_jofezogafawokif.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370092/normal_5f92fa7d2e9a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378160/normal_5f8b83be541ad.pdfIn PDF document text
    • https://vejuvofarazaxar.weebly.com/uploads/1/3/4/3/134355137/8274264.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/tibitexil/mogolizoralipemijoja.pdfIn PDF document text
    • https://lidokofokaz.files.wordpress.com/2020/11/48665448125.pdfIn PDF document text
    • https://lotokaboludi.files.wordpress.com/2020/11/28748831641.pdfIn PDF document text
    • https://ripigewub.files.wordpress.com/2020/11/30024737157.pdfIn PDF document text
    • https://s3.amazonaws.com/punurum/pol_237_purdue_exam_1.pdfIn PDF document text
    • https://s3.amazonaws.com/serogajugomiji/43130171702.pdfIn PDF document text
    • https://s3.amazonaws.com/ravuxudibure/12665479357.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b454a1e2-8594-4d8a-a24a-d50c0e5e486c/3276824975.pdfIn PDF document text
    • https://risagifilona.files.wordpress.com/2020/11/zajekedivejijubanuvawir.pdfIn PDF document text
    • https://s3.amazonaws.com/mubemutolewe/gupugakejofinafejanota.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_off0000635c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x635C 5384 bytes
SHA-256: a4ff8e242ff68372485112d3774cf88240d7d0f7213a50a67c867ede8706001f
font_01_sfnt_off00007583.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7583 10832 bytes
SHA-256: f6a1870b276188ee70fadaacf3fd1fdfce7823005f20b4ef228b58221fb91c9e

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