Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad59d60ef2dd1c2a…

MALICIOUS

PDF

96.7 KB Created: 2021-06-05 10:44:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 0c5f7113a65915b729589acdca4c8f1d SHA-1: 33db1e6dc2e42b91a7db9733c40d9b574f8c38e3 SHA-256: ad59d60ef2dd1c2a517f83ea77676ed7a840df8d767da50dfd9e5e7abf0d7ead
186 Risk Score

Malware Insights

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

This PDF file exhibits characteristics of a link farm, containing numerous external links to other documents, likely intended to manipulate search engine rankings or distribute malicious content. The primary malicious URL identified is https://jumiwimov.ru/123?utm_term=black+holes+and+revelations. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 6

  • 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.
  • 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://jumiwimov.ru/123?utm_term=black+holes+and+revelations PDF link annotation
    • https://fifubinagate.weebly.com/uploads/1/3/4/8/134854053/tamavitozobiwak.pdfIn PDF document text
    • https://jimiduwukav.weebly.com/uploads/1/3/1/4/131452794/bc075ac3.pdfIn PDF document text
    • https://tusutaxuwipafu.weebly.com/uploads/1/3/4/4/134403355/koxolulezanikaguxuve.pdfIn PDF document text
    • https://dekavodo.weebly.com/uploads/1/3/4/4/134438155/bezapadap.pdfIn PDF document text
    • https://liruviwogaralo.weebly.com/uploads/1/3/0/7/130776788/5878372.pdfIn PDF document text
    • https://bikafosujikus.weebly.com/uploads/1/3/2/8/132815014/e6fc447720ff38.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gosirata.pbworks.com/w/file/fetch/144457485/wonder_woman_2020_full_movie_watch_online_dailymotion.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c46b9dc0-d260-42cc-b268-a3a59c565b4e/are_bold_jumping_spiders_dangerous.pdfIn PDF document text
    • http://dajodovilav.pbworks.com/w/file/fetch/144534288/64481731581.pdfIn PDF document text
    • http://gifavipa.pbworks.com/f/5195190905.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/59c071b7-6218-4470-8dad-9ce848933ffc/how_to_draw_a_title_block_in_technical_drawing.pdfIn PDF document text
    • http://sekodegaxex.pbworks.com/w/file/fetch/144624717/handwriting_practice_ks3_worksheets_printable.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b9b28673-d3e7-4149-b7e4-80699769536e/30774499049.pdfIn PDF document text
    • http://tovemubu.pbworks.com/w/file/fetch/144614193/10284368943.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74eee431-9ed3-4e12-bbe9-be1203cf4069/wolelakaxodirezeb.pdfIn PDF document text
    • http://ronefete.pbworks.com/w/file/fetch/144647832/tegesuvev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/211ebf39-a6a1-47a8-9c7d-d312ca33b7a8/calories_per_acre_rice.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a43a339-f749-41a0-b4be-2fcb1f1db2ab/top_10_best_home_design_apps.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3557c775-18e2-46d0-8200-5cba8035d459/how_much_does_a_psychology_earn_in_india.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c4a6cbb-25d5-49c5-bbfa-69025299a12e/12516277752.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea03b37a-681b-4b6d-afc6-417f9d27953f/4860287633.pdfIn PDF document text
    • http://vimadutukad.pbworks.com/w/file/fetch/144470184/78915020964.pdfIn PDF document text
    • http://pezaloribed.pbworks.com/w/file/fetch/144627804/jisomenoxij.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
stream_002_off0000f0a9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xF0A9 25108 bytes
SHA-256: 70ef1b9bc0a6d9f777efeaaccb182d3c632ea9134b1f7a8e123542d7a532bb58
font_01_sfnt_off00013eda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13EDA 5200 bytes
SHA-256: f6883aa8b56562c80e9800e9e4f81ddacdda649083ef06d489e8176306e58817
font_02_sfnt_off00015082.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15082 10636 bytes
SHA-256: cbdea3785054b6e11aba2f16eaa8b983b677d6bd9ce1090c5fb682c72b0220e7

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