Malicious PDF — malware analysis report

Static analysis result for SHA-256 061efc36187d3050…

MALICIOUS

PDF

76.6 KB Created: 2020-11-26 16:47:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: fdeaca7c0c6c180af1adf16c832d01e7 SHA-1: da18cd7bfc72755db2b0364f00f3c87a81dcd8af SHA-256: 061efc36187d3050c859ccefb24c096b1ae21da483e4dad3387fcfb4722a7c76
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and 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 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/strik?utm_term=manual+high+school+peoria+il+basketball PDF link annotation
    • https://pavuxutekukos.weebly.com/uploads/1/3/4/7/134704216/kaxunaxasebetus.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368477/normal_5f88d3770833c.pdfIn PDF document text
    • https://migufakugiguxob.weebly.com/uploads/1/3/4/5/134579218/2440307.pdfIn PDF document text
    • https://jidisozipu.weebly.com/uploads/1/3/4/4/134440811/ruxijim-nepuwadixixefa-nujixaronov.pdfIn PDF document text
    • https://merokiniperoj.weebly.com/uploads/1/3/4/6/134691049/1534916.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380076/normal_5f9bb77e590c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414176/normal_5fbeaf0564617.pdfIn PDF document text
    • https://nodararikerat.weebly.com/uploads/1/3/4/8/134885074/7155452.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/a1b060f7-2e6a-4095-a9e2-d6fcf2502f10/86364471045.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzufexarevima/kovive.pdfIn PDF document text
    • https://s3.amazonaws.com/xalexojaxipud/bleacher_report_live_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9adb2736-57b9-480c-91f2-f449ba403e84/tewewameduvawuzutiwev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/998a1ce3-bd3b-4710-a147-4936d463e8ce/zedori.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1ac9ada-1de7-47ce-a27c-fb927116953f/jesus_i_am_statements_explained.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef3e0973-ba5c-43da-b836-b12f832020db/work_at_home_jobs_in_dallas_texas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5889551e-1c03-4713-bfc9-256ad23db4f7/72552432704.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e79fcb8-9034-400f-a43f-f806deb46ba7/bisizomeme.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_off0000f00b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF00B 5404 bytes
SHA-256: a0dacd77a62c207d71f8040dc31b3b6399a9f83b23cd4b9fa3c1100b0cdea40e
font_01_sfnt_off00010275.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10275 10100 bytes
SHA-256: a24ae105e99f105cf45b542f41a32b488729fe1cf1734488d5ae223b7ba6eaa1

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