Malicious PDF — malware analysis report

Static analysis result for SHA-256 7079c71cecde37b9…

MALICIOUS

PDF

77.2 KB Created: 2021-03-01 17:52:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a4754b701d8afa2b380d1198fea7b7c9 SHA-1: 5fb07bcd774beb7d90e4c18758eb2aebd991848e SHA-256: 7079c71cecde37b9114c6d37c611cd444b34dc7f692005064958bb2ccac7c46e
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://pelibifir.ru/wix?keyword=lodi+apartment+management+companies PDF link annotation
    • http://begemot.space/19453599759gp6fa.pdfIn PDF document text
    • https://cdn.sqhk.co/sijiposago/gjejdhg/bugubitibuzagik.pdfIn PDF document text
    • http://bonboxstudio.com/zonadosufugunimazh7p6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476593/normal_5ffb97877cb63.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469370/normal_60162c5d5369f.pdfIn PDF document text
    • https://nafugawiwira.weebly.com/uploads/1/3/1/4/131438392/1b8e0bcce5.pdfIn PDF document text
    • https://radufogerexe.weebly.com/uploads/1/3/4/2/134265868/8983298.pdfIn PDF document text
    • http://smartcreditscore.info/monorv6xrt.pdfIn PDF document text
    • https://cdn.sqhk.co/tevosudav/fhchcVb/i_might_just_risk_it_all.pdfIn PDF document text
    • https://cdn.sqhk.co/benanejufa/hejhNNH/71676087268.pdfIn PDF document text
    • https://cdn.sqhk.co/nowavutu/ggcieu0/can-_am_defender_hd5_forum.pdfIn PDF document text
    • http://replyua.site/icecrown_citadel_solo_guideqiez0.pdfIn PDF document text
    • https://bafewalu.weebly.com/uploads/1/3/5/3/135350628/vapuli.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/resisuna/bhaijaan_elo_re_full_movie_300mb.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawe/99751138214.pdfIn PDF document text
    • https://s3.amazonaws.com/divelatoxa/chaalbaaz_movie_hd_video_song.pdfIn PDF document text
    • https://s3.amazonaws.com/pevarijidasalop/wututumedakifesuxebuvaj.pdfIn PDF document text
    • https://s3.amazonaws.com/mawesenasijoser/fepadutevuvenokagotafedoj.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_off0000f1c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1C5 5304 bytes
SHA-256: b59bea8b250c271c937bc62a184ce64e242941a57f6f3387cd3bd28f499b6493
font_01_sfnt_off000103c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103C0 10472 bytes
SHA-256: 76b757b3af0126eed28811d995c46c016db16db770bf562faa7acb31d9e6c021