Malicious PDF — malware analysis report

Static analysis result for SHA-256 242e16d105d219f1…

MALICIOUS

PDF

98.4 KB Created: 2021-03-14 13:06:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 5f60ceb10db384b344feeb3f9a9f584b SHA-1: c2f803e55440ccb56f2f1ebfc04152d86b1ef660 SHA-256: 242e16d105d219f119f59a7e8e53424fd0bf457b16ed81f2465a757cde337e86
156 Risk Score

Malware Insights

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

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 0.9992

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://crophysi.ru/strik?utm_term=5+stages+of+psychoanalytic+theory PDF link annotation
    • https://cdn.sqhk.co/bitowiso/iwjgisy/kuxuxujawomapokinipefatap.pdfIn PDF document text
    • https://tudegikugil.weebly.com/uploads/1/3/5/3/135317618/mogevepuj-zinij-fajuvew-kotomiruvi.pdfIn PDF document text
    • https://cdn.sqhk.co/godezixibufo/gieHyha/guide_for_free_fire_booyah_download.pdfIn PDF document text
    • http://insta-sale.site/pokemon_heart_gold_goldenrod_city_gym_walkthrough7h5lh.pdfIn PDF document text
    • https://cdn.sqhk.co/renosopezare/gcusied/htc_weather_animation_download.pdfIn PDF document text
    • http://kmplitka.shop/xodidafyebp.pdfIn PDF document text
    • https://jifujutikawe.weebly.com/uploads/1/3/5/3/135328504/98b45fc2f76.pdfIn PDF document text
    • http://wow50.pro/79923229157v8bsv.pdfIn PDF document text
    • https://vupudirul.weebly.com/uploads/1/3/0/8/130874586/6708504.pdfIn PDF document text
    • https://lekomitigukajar.weebly.com/uploads/1/3/5/3/135345412/3360992.pdfIn PDF document text
    • http://samelike.site/word_search_game_garden_essentials8qn5c.pdfIn PDF document text
    • https://vezutubiwewo.weebly.com/uploads/1/3/4/5/134507618/360d864b.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/jinabom/capsim_situation_analysis_answers_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/grave_encounters_2_imdb_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/woberiz/biotechnologist_resume_format.pdfIn PDF document text
    • http://guvukexapa.rf.gd/86905925514.pdfIn PDF document text
    • http://joxopup.epizy.com/ielts_academic_writing_task_2_samples_band_8.pdfIn PDF document text
    • https://s3.amazonaws.com/wuniku/brescia_stadium_guide.pdfIn PDF document text
    • https://b615eccc-4413-4b1d-8109-ede925130a83.filesusr.com/ugd/0994f9_db6a7743fee6463ba2246182836ef551.pdf?index=trueIn PDF document text
    • https://28a90398-13b1-4b58-b54c-ed045a6bddf2.filesusr.com/ugd/7e9e1f_a51b3020998845f99f90a577e8616a7a.pdf?index=trueIn PDF document text
    • https://d5e9a058-cbdc-4968-ba72-30cdbf1e36a3.filesusr.com/ugd/9cfd0a_b3e992b4bf9c452a9ee4ef21aed00142.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jokotaziweluge/brandon_sanderson_oathbringer_epub.pdfIn PDF document text
    • http://sobikunukozi.rf.gd/industria_alimentaria_historia.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_off0001417e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1417E 5408 bytes
SHA-256: d5501e7978ea85f57e7c5dc811ece2d463dcb14e7976ebd2b40dfb17d175dd09
font_01_sfnt_off000153eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x153EB 11476 bytes
SHA-256: 202b86b9207d178f589580a151881b5bfd206fef02bbe99ab8afb0f0675113a8

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