Malicious PDF — malware analysis report

Static analysis result for SHA-256 560c4334a6605187…

MALICIOUS

PDF

70.7 KB Created: 2021-02-21 23:55:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0a9eda193f5f3e67832a1b041a91b993 SHA-1: 2cf4e7a446731b2c8905e0a4df8f3598c6909972 SHA-256: 560c4334a6605187fe0765a8d454d993ad99815e593e080902f033cc6aeb6769
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/wix?keyword=grammarly+apk+old+version PDF link annotation
    • https://xekafifem.weebly.com/uploads/1/3/4/6/134669887/0ae5b.pdfIn PDF document text
    • https://toroborelap.weebly.com/uploads/1/3/4/8/134867907/kufogep-walozagam-pefaxoxesujoj-zozosa.pdfIn PDF document text
    • https://gorejirulikem.weebly.com/uploads/1/3/4/7/134738880/b147fedf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371806/normal_5fdbd15f1b285.pdfIn PDF document text
    • http://meweremidef.iblogger.org/alarm_clock_sound_android_app.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473642/normal_6019cd8a29560.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367633/normal_5fd913d1bcf7b.pdfIn PDF document text
    • http://ribuvegiruni.iblogger.org/51031401063.pdfIn PDF document text
    • https://gatudawi.weebly.com/uploads/1/3/1/3/131379110/wisolosutu_bugopominumedug.pdfIn PDF document text
    • https://sapofekotor.weebly.com/uploads/1/3/1/6/131637774/semupuzodub-legepivufezaro-wexabavuzexo-duravemas.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455198/normal_5fc5b63353e7d.pdfIn PDF document text
    • http://walabakubu.iblogger.org/bexawuneliminavevojokepo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/dejazuvorira/pajujafaxizevomog.pdfIn PDF document text
    • http://jiwepatifon.rf.gd/xeteba.pdfIn PDF document text
    • http://pegalisijeg.epizy.com/excel_two_sheets_side_by_side.pdfIn PDF document text
    • https://s3.amazonaws.com/muvazi/shell_gadus_s2_v220_2_data_sheet.pdfIn PDF document text
    • http://pimubejat.epizy.com/how_do_i_contact_facebook_help_team.pdfIn PDF document text
    • http://bolesumedinix.rf.gd/battle_chess_3d_game_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/xulepiwa/75557257982.pdfIn PDF document text
    • http://dufijofitaj.epizy.com/23964986742.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_off0000cc70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC70 5068 bytes
SHA-256: a9d5fda873a5002bfeed15dccee22a59f5d3bfc18a1021ef1f5a5ea7b194098e
font_01_sfnt_off0000dd9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD9E 9936 bytes
SHA-256: 839a40e6bf378bffe754cde2d66f24e697afe303b9649ba7b6298e7e77873ff0
font_02_sfnt_off0000ffb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFB6 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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