Malicious PDF — malware analysis report

Static analysis result for SHA-256 8159334385891ee0…

MALICIOUS

PDF

76.9 KB Created: 2020-11-25 20:39:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 260ba36a43f14457f2dca8fe713a92bc SHA-1: 49d1d40573a862ba6f85ead2b00004e9634df96b SHA-256: 8159334385891ee06db1de320c0213fd86e07403dd9c9e33939160d6504adda7
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The document contains numerous external links, with one prominent URL pointing to 'traffnew.ru' and disguised with a movie title, suggesting a phishing or malware distribution lure. The PDF's structure and link farm characteristics further support its role as a malicious document designed to redirect users to potentially harmful sites.

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://traffnew.ru/123?utm_term=avengers+infinity+war+1080p+watch+online PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4482860/normal_5fba9089f21fc.pdfIn PDF document text
    • https://sekirodalod.weebly.com/uploads/1/3/4/6/134673836/7875748.pdfIn PDF document text
    • https://fewevivib.weebly.com/uploads/1/3/0/8/130813821/sopaxoduwojorojobu.pdfIn PDF document text
    • https://zesopupejilit.weebly.com/uploads/1/3/0/7/130738861/rijavo.pdfIn PDF document text
    • https://fuzujaloxoz.weebly.com/uploads/1/3/4/6/134684853/3254138.pdfIn PDF document text
    • https://kuromazu.weebly.com/uploads/1/3/2/6/132695519/dobexofepoxijunulir.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/cb9d3f1c-a5e0-4f80-972e-20495060bc35/vavipiruvewujadifufovav.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxawetawupo/amadeus_electronic_ticketing.pdfIn PDF document text
    • https://s3.amazonaws.com/kiwopusafize/11463469641.pdfIn PDF document text
    • https://s3.amazonaws.com/fezenur/zonolofunaf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d0dac3f-7897-4ccb-851d-8271c8eb61a4/fafowidusazumodegag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/879e6c7a-a74c-4bdf-8c67-2e73ef11c9eb/badenep.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ce44a10-3be2-4d4e-9b81-9ce836804f7f/bizatisulojowolezot.pdfIn PDF document text
    • https://s3.amazonaws.com/pevuwarobuvowa/asphalt_roofing_manufacturers_association_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fajujiju/behold_a_pale_horse_deutsch.pdfIn PDF document text
    • https://s3.amazonaws.com/wovisak/bhajan_ringtone_mr_jatt.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_off0000ef11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF11 5908 bytes
SHA-256: 18480987fed4fa67d87dd6878d47f82388f372d4e0f87d02c79230fa8c4e960a
font_01_sfnt_off00010356.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10356 10148 bytes
SHA-256: f0b25f8ce0fc663428a03d0ff067a340b3c2e2f406db5d5e0cb195716c5fba01

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