Malicious PDF — malware analysis report

Static analysis result for SHA-256 862e17d1bcc3a540…

MALICIOUS

PDF

69.0 KB Created: 2020-12-16 13:44:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 0076d69233865099d210352cb8b85ebc SHA-1: 9bcf964b9715e930966653699a14eb6b10c91578 SHA-256: 862e17d1bcc3a5407a8530934f19ded64315a75c53f23a547510865ae5041b89
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 flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious intent. It contains a large number of external links, many pointing to PDF files hosted on various platforms, suggesting a link farm or phishing campaign. The primary URL, 'https://traffnew.ru/aws?utm_term=dcuo+switch+guide', likely serves as a lure to a malicious site.

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/aws?utm_term=dcuo+switch+guide PDF link annotation
    • https://zomomawiwupid.weebly.com/uploads/1/3/4/3/134385308/domivozuvafufato.pdfIn PDF document text
    • https://giretalude.weebly.com/uploads/1/3/4/6/134677333/kimedukufib.pdfIn PDF document text
    • https://puzomukasudugun.weebly.com/uploads/1/3/4/8/134865935/178877.pdfIn PDF document text
    • https://nodifolosorak.weebly.com/uploads/1/3/4/7/134758422/wiledek-papirebupi.pdfIn PDF document text
    • https://zavomafig.weebly.com/uploads/1/3/4/3/134356936/1888608.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/pesetufavo/huawei_smartwatch_gt_faces.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d720f03-433b-4d7e-9d68-3e5bbb07b3ab/felsefe_tarihi_macit_gkberk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e8091c4-2d31-4099-975b-a9805a28095c/fahrenheit_451_answers_part_3.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0eda3ec917750a3d80aaa/t/5fc27618145a8629dc002efa/1606579750333/5447692599.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba8c32da-4558-4305-8710-890dd307320d/94199911822.pdfIn PDF document text
    • https://s3.amazonaws.com/nafibanefexex/background_png_for_picsart.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00eccc81-72e3-47c2-90e7-8741006d5499/relididajesobixiteluxem.pdfIn PDF document text
    • https://s3.amazonaws.com/lomiwexuva/aurorean_tiger_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/bovenotojitowe/57497981305.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_off0000d234.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD234 4956 bytes
SHA-256: 98cacd03dc5007a575eb7958f7fcc542b525c387942f7f19e0d1877886b52fa5
font_01_sfnt_off0000e32d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE32D 10692 bytes
SHA-256: bc7a3bc4d456461071eeb7c9e6a1db46a5996b2f9fe2354c02490dc0e53b61ea

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