Malicious PDF — malware analysis report

Static analysis result for SHA-256 88fb05926b8692ab…

MALICIOUS

PDF

71.4 KB Created: 2021-03-03 04:45:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2905ffbe9cbe03206700abaac033b3f2 SHA-1: 7966f6419476e439037e17a3bf720cb005d1185b SHA-256: 88fb05926b8692abdd0ed191628ab1545ea824ba881d05328500733fdb7e7090
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/wix?keyword=2008+ap+chemistry+free+response+answers PDF link annotation
    • http://vijufik.iblogger.org/81255036678.pdfIn PDF document text
    • https://cdn.sqhk.co/neviragar/xjijcja/17937406538.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381751/normal_6027ad9922304.pdfIn PDF document text
    • https://cdn.sqhk.co/miburixegapu/eicFgfD/dj_music_mixer_player_for_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/wigalefu/bhayihx/53124078345.pdfIn PDF document text
    • https://cdn.sqhk.co/gefimiwotux/YIwjg8W/dwight_yoakam_fast_as_you_live.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470961/normal_6029d9d408cb3.pdfIn PDF document text
    • http://rukofuvifoti.22web.org/new_big_nate_books_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/kapidibewomu/ib2NhaN/98666104895.pdfIn PDF document text
    • https://cdn.sqhk.co/jupozaregu/vgjhaji/29005974320.pdfIn PDF document text
    • https://cdn.sqhk.co/zumedizojas/jbhgjaX/movavi_video_editor_windows_10_download.pdfIn PDF document text
    • https://cdn.sqhk.co/pevukoza/2pjjHjc/best_buy_laptops_cyber_monday.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nujuxat.epizy.com/jifetuguwu.pdfIn PDF document text
    • http://nogutisogesirax.rf.gd/kuvuk.pdfIn PDF document text
    • http://zeralibogol.epizy.com/gewexejagugerufumu.pdfIn PDF document text
    • http://dinotowiteve.rf.gd/38251138148.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
font_00_sfnt_off0000cbcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBCC 3096 bytes
SHA-256: db4f851c57e21922b80bee926250f2b074ffdefd9e88977809f5996ddc485e19
font_01_sfnt_off0000d6d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6D4 5792 bytes
SHA-256: 1323dbbcdd3fefe861e085fb8c97135d01ef0e60ebcd903674ad434079869fb7
font_02_sfnt_off0000ea74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA74 11112 bytes
SHA-256: bb5d1949f729baa15ba3cc05f71700c973aab144df0b9e9dacca27d83b7afd91