Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a4bbb9f639aa8b1…

MALICIOUS

PDF

66.9 KB Created: 2021-03-01 18:06:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 293b92eafbb76452fc4ab464fbccb6af SHA-1: 099420ef947aa98fa6c92676c2ff7c1448288b7d SHA-256: 2a4bbb9f639aa8b10fe0a00c877bbda4d808744edfa8a785c003dad599e9a791
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 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://ponafet.ru/award?keyword=dr+wayne+dyer+i+am+wishes+fulfilled+meditation PDF link annotation
    • http://mifuvaxikibowi.22web.org/upkar_physics_book.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411231/normal_5fd652c016802.pdfIn PDF document text
    • http://tranquils.space/occult_adventures_pathfinderqzc36.pdfIn PDF document text
    • http://tifubuza.22web.org/instagram_highlight_templates_travel.pdfIn PDF document text
    • http://niwifara.22web.org/pasozezoxulupepekodu.pdfIn PDF document text
    • http://miribut.mywebcommunity.org/joretabojate.pdfIn PDF document text
    • https://cdn.sqhk.co/nozujeraguje/jZiijh2/centipede_grass_problems.pdfIn PDF document text
    • https://tolajugim.weebly.com/uploads/1/3/4/6/134647220/9638393.pdfIn PDF document text
    • https://notagudoda.weebly.com/uploads/1/3/0/7/130776089/fb7df1409a5f10b.pdfIn PDF document text
    • http://jakor.pro/us_navy_eval_closing_statemente6aoc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416790/normal_60146ee121f09.pdfIn PDF document text
    • http://taforojujutusig.mygamesonline.org/element_elefw504a_tv_stand.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fumojaw.epizy.com/42525741126.pdfIn PDF document text
    • http://ligujizulogi.atwebpages.com/4th_grade_math_worksheets_california_standards.pdfIn PDF document text
    • http://xexagum.epizy.com/sapibu.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ca37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA37 5340 bytes
SHA-256: 4c8d384f50e97d1967d754e21a0708a46319127de08835865c8f915c5142cd84
font_01_sfnt_off0000dc54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC54 9980 bytes
SHA-256: 40410220da464ebc1eb396036635f1e1774983334865c712514eba68069074ab