Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f6298fd7bae4973…

MALICIOUS

PDF

80.4 KB Created: 2021-03-16 06:50:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 0814e020146bc0055edfb0c6a244fad8 SHA-1: 11fd0dd5aede32acf83de74d1021669d9bf74fd0 SHA-256: 1f6298fd7bae4973dc8622ddee7befdb2bd7844cd67de338b31d973b5736dafa
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://leonvi.ru/aws?utm_term=on+writing+well+30th+anniversary+edition+summary PDF link annotation
    • http://flowerport.shop/minn_kota_ulterra_motor_error_will_not_deployz9jjt.pdfIn PDF document text
    • http://kelnoteres.xyz/79256693243ok2nu.pdfIn PDF document text
    • https://cdn.sqhk.co/jutigurotow/2x1i4jc/69685186716.pdfIn PDF document text
    • http://usmileofficial.site/what_is_an_automatic_control_systemklx5z.pdfIn PDF document text
    • http://proita.space/720846965028v8hi.pdfIn PDF document text
    • http://myirn.icu/lupodutathz12.pdfIn PDF document text
    • https://cdn.sqhk.co/demejapad/h5Upfij/gujajovakifafavugu.pdfIn PDF document text
    • https://koxawikala.weebly.com/uploads/1/3/4/6/134643159/zedudupegulesu.pdfIn PDF document text
    • http://mon-cmso.best/26710745744rqno1.pdfIn PDF document text
    • https://joxiwawetesamiv.weebly.com/uploads/1/3/4/3/134306419/bobiwazeb.pdfIn PDF document text
    • https://cdn.sqhk.co/tamejenonisi/frUihKK/sefodonaposubusagilozap.pdfIn PDF document text
    • https://zunurevupuvofas.weebly.com/uploads/1/3/1/4/131438471/3b375b7bd2a0.pdfIn PDF document text
    • https://cdn.sqhk.co/zimalodepafo/To3hbxU/nanawotadabuzosiwi.pdfIn PDF document text
    • http://yourlivehelp.com/do_you_need_to_warm_up_before_strength_trainingcbvlz.pdfIn PDF document text
    • https://tesurupijirixu.weebly.com/uploads/1/3/0/8/130813669/5223081.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://s3.amazonaws.com/zowibatev/95772157845.pdfIn PDF document text
    • https://s3.amazonaws.com/sowewazulejewi/42094003366.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/afd600d4-0146-40d3-8708-fcad6111f200/57601992210.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a6ecf21-0998-4fae-a09e-7621ad240ac3/starbucks_barista_job_duties_for_resume.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18ae1b80-0b1a-4527-b8a0-b796474e392e/1592783306.pdfIn PDF document text
    • https://s3.amazonaws.com/xugigabitulu/wugorideme.pdfIn PDF document text
    • https://s3.amazonaws.com/jofunozuzof/entrepreneurs_programme_guidelines.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000edd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDD0 5708 bytes
SHA-256: dcd42a2fb027431660333b9fadadf4f4de44da08586147300b5e5c31296392da
font_01_sfnt_off0001012d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1012D 10864 bytes
SHA-256: 73ebef4d03bfe4801fcc7ab4389ebd4a1af71c870b32485a85fec5c6cfe9cf93
font_02_sfnt_off000125ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125EC 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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