Malicious PDF — malware analysis report

Static analysis result for SHA-256 826185baee5647a9…

MALICIOUS

PDF

68.9 KB Created: 2021-03-01 05:41:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f581145bf77fb1ba7aa89b9485b8dff2 SHA-1: 55f2d4139ca041d41452221d0178f03a28a2928d SHA-256: 826185baee5647a96112adface6b5eea0cd0f9e6543104049b8fa67c83e94e5d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://vilenefex.ru/award?keyword=rival+meat+slicer+1030%252F7 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4391605/normal_602bf9019b624.pdfIn PDF document text
    • http://kitafoged.medianewsonline.com/my_keurig_2.0_stopped_pumping_water.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463552/normal_5fffb042056d6.pdfIn PDF document text
    • https://kepubewi.weebly.com/uploads/1/3/6/0/136095452/3396403.pdfIn PDF document text
    • http://remont-pc.website/beraregogepiwolotokf6e3.pdfIn PDF document text
    • https://jaxuvoxet.weebly.com/uploads/1/3/5/9/135979876/8dbd45b75.pdfIn PDF document text
    • https://wezusewowanura.weebly.com/uploads/1/3/4/2/134235680/2b3fd2.pdfIn PDF document text
    • http://bluetea.space/nevikidanimutugarevukuxlfa7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391893/normal_5fd0853ae564e.pdfIn PDF document text
    • http://dotavulilego.mypressonline.com/the_warren_buffett_way_review.pdfIn PDF document text
    • http://eslivdrug.space/comment_prendre_confiance_en_soi_rapidementmtzej.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485569/normal_601834953cb51.pdfIn PDF document text
    • https://birugenok.weebly.com/uploads/1/3/4/6/134632973/lopebipuge_wagigozat_sijulebegitegul_vuvub.pdfIn PDF document text
    • http://tapozifokun.mywebcommunity.org/zifabafagi.pdfIn PDF document text
    • https://baxemajoxololur.weebly.com/uploads/1/3/1/0/131070692/dapajevav-noxir-likomerisede-ruvajuwijibulij.pdfIn PDF document text
    • https://ginugifugebiner.weebly.com/uploads/1/3/4/2/134234672/juvivoka-varozet.pdfIn PDF document text
    • https://remitibomuko.weebly.com/uploads/1/3/4/8/134853657/teloki.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409801/normal_5fec2d8061ffd.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/tikofaketonub/59131929330.pdfIn PDF document text
    • https://s3.amazonaws.com/pusori/27540267831.pdfIn PDF document text
    • https://s3.amazonaws.com/lijulijowivaze/79474675400.pdfIn PDF document text
    • http://zisukuvi.atwebpages.com/vamuwojorad.pdfIn PDF document text
    • https://s3.amazonaws.com/wonumafubij/board_meeting_agenda_template.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_off0000ce70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE70 5488 bytes
SHA-256: a03ee673a279a0c8f9b263a45b2b6a8148702a20fe9e2559ebb07cbe551e1fc2
font_01_sfnt_off0000e11c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE11C 10888 bytes
SHA-256: 5f65d7060ac6fe64cc60124c1af7d468766310dbc2aec1f8d82903fb5a019604

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