Malicious PDF — malware analysis report

Static analysis result for SHA-256 42a605ec52a56182…

MALICIOUS

PDF

57.2 KB Created: 2020-11-06 10:57:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: e8784607ef4619ad5290eef1c76f247e SHA-1: 2aa18acf57cc3567025ff7fab878cbd12ab61fae SHA-256: 42a605ec52a56182c02d78ddd908c102f4b3b966f06a3d034f1376af0f70ded5
94 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 routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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://ggtraff.ru/strik?keyword=wgu+c128+study+guide+completed In PDF document text
    • https://cdn-cms.f-static.net/uploads/4376857/normal_5f91f9d3211e4.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/janodojivi/16100464288.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/78253926301.pdfIn PDF document text
    • https://s3.amazonaws.com/novifamigot/pursuit_of_hat_2_16.pdfIn PDF document text
    • https://s3.amazonaws.com/potamotaz/price_chopper_flowers_for_wedding.pdfIn PDF document text
    • https://s3.amazonaws.com/kewakuko/sociology_journal_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/mibiwivanetuj/lucy_daughter_of_the_devil_songs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9eaa386-603c-40ca-94ed-6120cf16777e/lopiragix.pdfIn PDF document text
    • https://s3.amazonaws.com/bisute/kuzafapitanexoxaketemekor.pdfIn PDF document text
    • https://s3.amazonaws.com/bakoloj/dolimupevavokojo.pdfIn PDF document text
    • https://s3.amazonaws.com/jotizifime/genezitugu.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/timer_1_hour_12_minutes.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/genezomurujov.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 2

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_off0000898d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x898D 5580 bytes
SHA-256: d08ea422f6437d358553be3f89133ab5709aafe4d348dd31989ee52ccb83e075
font_01_sfnt_off00009ca3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CA3 10736 bytes
SHA-256: d6b5bb51a63450b091d7371c7746437cecb1a62a8672fe50e5fb2e048fdf6145
font_02_sfnt_off0000c17c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC17C 16684 bytes
SHA-256: f840317bf95390c92a2867f783c05a87c3b31e0234760b1e77f084fd9f7e17bd

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