Malicious PDF — malware analysis report

Static analysis result for SHA-256 9226d6723ceff5d4…

MALICIOUS

PDF

44.0 KB Created: 2020-11-08 03:17:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: f690a1d2092e5a431b2cb6e06c34aee5 SHA-1: bd4853c38c73561ee115d5e9d3d19d9a9ec6fa35 SHA-256: 9226d6723ceff5d4f2dd30695fbd6a6883e14f965890d19cade68676ee13ef7a
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to disposable hosting services and redirect to malicious infrastructure. The primary lure appears to be "Pixel gun 3d free gems and coins no hack", directing users to the URL https://traffmen.ru/123. The document's structure and link farm indicate a phishing or scam attempt, likely designed to lead users to a compromised site or download further malware.

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=pixel+gun+3d+free+gems+and+coins+no+hack In PDF document text
    • https://bufobefogefeka.weebly.com/uploads/1/3/4/4/134445289/paxexuteteso.pdfIn PDF document text
    • https://nimubawelekuf.weebly.com/uploads/1/3/4/2/134265751/tanopodezit.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413575/normal_5f97c996eb4ae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387715/normal_5f9491a540479.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://sifuwel.files.wordpress.com/2020/11/wajogixosux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee9a4131-24eb-4934-8f70-215a42b797ad/33276446322.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/43178366158.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d114bda-3339-4ff2-a15f-f88638ed208c/jatadenew.pdfIn PDF document text
    • https://vinutolaxuw.files.wordpress.com/2020/11/mulan_soundtrack_mp3_download_archive.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e0c00b2-06a4-4d4d-88d2-364864468740/putosorolemanigojesizer.pdfIn PDF document text
    • https://bukoxeluje.files.wordpress.com/2020/11/maths_book_for_class_10_federal_board.pdfIn PDF document text
    • https://sazaluxi.files.wordpress.com/2020/11/free_printable_barbie_dress_sewing_patterns.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 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F3B 5532 bytes
SHA-256: b25da6c32e0da18701436be030ba2d9ac353de24cd72b7ba8b063374e9cd1b6c
font_01_sfnt_off000071d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71D1 10148 bytes
SHA-256: 26144ddd497e68041a9b776fb733e1e473a4eb6a078815df5a0ab24efc8a7401
font_02_sfnt_off00009496.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9496 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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