Malicious PDF — malware analysis report

Static analysis result for SHA-256 41ca38e8b3b5bef1…

MALICIOUS

PDF

73.1 KB Created: 2021-02-23 15:41:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 824b7672ef74b67e40e441920fd70bc1 SHA-1: d857017570abd65055dbc679df1a404583370242 SHA-256: 41ca38e8b3b5bef1acdd980c26f7c8b63f7fbef09a8bcc336749a0e639916a9a
126 Risk Score

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 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://baarspo.ru/wix?keyword=wahl+clippers+repair+manual PDF link annotation
    • https://kapejipe.weebly.com/uploads/1/3/1/0/131070538/mifuzobag_nidabumotojedef_zonuven_tosopabezetu.pdfIn PDF document text
    • https://rezosegog.weebly.com/uploads/1/3/2/8/132814067/0d529d.pdfIn PDF document text
    • http://persequen.com/79873695546ai9gu.pdfIn PDF document text
    • https://xuwogojike.weebly.com/uploads/1/3/1/3/131380868/838f6fd84662.pdfIn PDF document text
    • http://naturaleone.space/zezabuvuvumurutodapj5rd.pdfIn PDF document text
    • https://bigakajufejala.weebly.com/uploads/1/3/4/2/134265656/kuwirikenafuji-tanerukezu-difiki-rasuwitesola.pdfIn PDF document text
    • https://mirulunus.weebly.com/uploads/1/3/1/1/131164386/vanenijatasodukasa.pdfIn PDF document text
    • http://fulusixavopowem.iblogger.org/ftii_pune_admission_form_2018.pdfIn PDF document text
    • http://maska-respirator.com/pentagon_city_mall_map_apple_store71fe6.pdfIn PDF document text
    • http://raisinshq.pro/jizipebncl0r.pdfIn PDF document text
    • http://ximasoj.22web.org/49364156263.pdfIn PDF document text
    • http://kigurumi.org/xejevovoxektocd.pdfIn PDF document text
    • https://bozobamawokoruv.weebly.com/uploads/1/3/4/3/134350924/8231282.pdfIn PDF document text
    • https://fisuxujatuma.weebly.com/uploads/1/3/5/3/135345375/5162512.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vepesupilet.epizy.com/58242646466.pdfIn PDF document text
    • http://rosukijabadizi.epizy.com/audio_visual_video_maker_apk.pdfIn PDF document text
    • http://zafovitunopejus.epizy.com/accident_report_sample_writing.pdfIn PDF document text
    • http://zivigujuvove.rf.gd/vawupufopaxovezux.pdfIn PDF document text
    • http://manisamat.epizy.com/all_arabic_fonts_free_zip.pdfIn PDF document text
    • http://siwebojik.epizy.com/33182532279.pdfIn PDF document text
    • http://xupevovegizem.rf.gd/saint_seiya_awakening_aphrodite_guide.pdfIn PDF document text
    • http://simipibenafar.epizy.com/newsletter_titles_format.pdfIn PDF document text
    • http://vibejasejejake.epizy.com/43714098343.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_off0000e2d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2D5 5188 bytes
SHA-256: ad677235fe2ab848a3188d0a7c09131a2f3d94f0e1bbffe4741cf5f11d1337e2
font_01_sfnt_off0000f459.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF459 9972 bytes
SHA-256: a01368af69f99b9755a3ec57148e81bf8b8db3c165eea797d15d5445c8437caa