Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2b9e89501ef45bd…

MALICIOUS

PDF

70.4 KB Created: 2021-02-17 13:58:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 958f80f39182536bee2ce397756e4b4f SHA-1: fe72fd4a6da240ac337367297722176cdd09ad1f SHA-256: b2b9e89501ef45bd9ec7fc7de0d1f551411fdd18d893adb99c4e8679838ce557
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://maypoin.ru/wix?keyword=chevy+tahoe+forum+2004 PDF link annotation
    • https://fapudunaga.weebly.com/uploads/1/3/0/7/130776769/449b884093.pdfIn PDF document text
    • http://lujadexezusunam.22web.org/48501786914.pdfIn PDF document text
    • http://bubuwem.iblogger.org/insurgent_movie_full.pdfIn PDF document text
    • https://vigijamavo.weebly.com/uploads/1/3/0/9/130968937/7308715.pdfIn PDF document text
    • https://dafebifu.weebly.com/uploads/1/3/4/3/134399244/repifotimofikiwugur.pdfIn PDF document text
    • https://cdn.sqhk.co/vujixete/YrlLYeR/5911173141.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jelugubafegoj.rf.gd/gokokiwajiluwuwoxunegiki.pdfIn PDF document text
    • https://s3.amazonaws.com/xedewofuretujo/vemuludujerunewated.pdfIn PDF document text
    • https://s3.amazonaws.com/fakuguvil/99867811824.pdfIn PDF document text
    • http://liwubujuwu.epizy.com/fire_emblem_warriors_crest_market_guide.pdfIn PDF document text
    • http://pamiwumewamem.epizy.com/bio_rad_cfx_manager_free.pdfIn PDF document text
    • http://vejimugar.epizy.com/spring_cloud_tutorial.pdfIn PDF document text
    • http://vimabamavarona.epizy.com/bluebook_20th_edition_citation_generator_free.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_off0000d6c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6C1 5224 bytes
SHA-256: c1aae4313b341861380360419f58bcfd356010be90d0538a80a59735cfecf7a4
font_01_sfnt_off0000e86c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE86C 10564 bytes
SHA-256: c350a9dee741593d075b4365b2e157351f709838251633ec8fbe484921240ce8