Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9841158a98a3a1c…

MALICIOUS

PDF

81.8 KB Created: 2020-11-18 03:44:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 0e918b794392e180c1446b9727ea10f8 SHA-1: ba4565e9e7ae9cedb712c4ee18b3b5d1ffa86e03 SHA-256: d9841158a98a3a1c81d36bfe54ae99020ce167beb1fe6bc73d1ee89a505cf706
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It contains numerous external links, including a link farm, and an embedded URL that points to a suspicious domain. The document body, though heavily obfuscated, suggests a lure related to online movie streaming, likely intended to redirect users to malicious sites for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 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.
  • 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=stree+movie+online+watch+dailymotion PDF link annotation
    • https://rabifupokuwu.weebly.com/uploads/1/3/1/1/131164250/8444efb68af.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367937/normal_5f9b3a8747e96.pdfIn PDF document text
    • https://vufuvato.weebly.com/uploads/1/3/4/7/134718288/dewatexe-ziwaro-tukid-potavijisuw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369310/normal_5f8c06ac16096.pdfIn PDF document text
    • https://vopevejefed.weebly.com/uploads/1/3/1/6/131606133/duledixefubo.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/c6e92a0c-06d7-46f7-a44d-640aec2f1145/talisman_digital_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/murudute/john_wick_google_drive.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87605e4f-7cce-41f1-b654-1a57a48ac1c9/domerixufodebu.pdfIn PDF document text
    • https://s3.amazonaws.com/rerinago/dadunowajukugomowa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62e503db-f863-4fb4-8079-f32c1f62692e/black_screen_personalized_settings.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a77e869-fdd6-4fcc-a883-3f26890a08f7/warrior_cats_medicine_cat_herbs_list.pdfIn PDF document text
    • https://s3.amazonaws.com/turip/ap_tet_books.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_off00010492.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10492 5360 bytes
SHA-256: ae504332f4cc3e9e1c1cd41c85001489391e13821d0c98740ac26c176dad2e00
font_01_sfnt_off000116b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116B3 10536 bytes
SHA-256: dbfa45ea31a5528ac665f95b53f4863ab34160e896a08c30b446fca021a28776

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