Malicious PDF — malware analysis report

Static analysis result for SHA-256 29e56086f1d45c07…

MALICIOUS

PDF

73.1 KB Created: 2021-02-20 00:45:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a9d1554f6771a975a0e1466fba12539e SHA-1: 139deb5181e0a303fee4055407669e0f61ac573c SHA-256: 29e56086f1d45c073c3a59be1672e97df5df8f525e76f42c6fcb16b70e8f8157
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://maypoin.ru/wix?keyword=shadowsocks+apk+pink PDF link annotation
    • https://cdn.sqhk.co/dakuwuwuzije/ibhfkje/secret_of_mana_switch_walkthrough.pdfIn PDF document text
    • https://cdn.sqhk.co/fazejitev/brjdZhh/police_chase_thief_pursuit_apk.pdfIn PDF document text
    • http://vash-fasad.live/40094233536j7enj.pdfIn PDF document text
    • http://fomirevadago.22web.org/idsa_guidelines_severe_c_diff.pdfIn PDF document text
    • http://afracheat5.xyz/gcse_maths_algebra_worksheets0farn.pdfIn PDF document text
    • https://cdn.sqhk.co/rebamomidaw/ibicR2l/human_resource_management_degree_salary.pdfIn PDF document text
    • http://yoganchik.space/86594008440v3whc.pdfIn PDF document text
    • https://cdn.sqhk.co/jemitaso/duiiiq2/50391482937.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452395/normal_601e904b73b7b.pdfIn PDF document text
    • http://plusstore.pro/11627077702otsz9.pdfIn PDF document text
    • https://cdn.sqhk.co/feguzuvubut/dgijiih/joperovapav.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/wekibik/giwododu.pdfIn PDF document text
    • https://s3.amazonaws.com/sorogamat/labour_law_reporter_march_2019.pdfIn PDF document text
    • http://banigigafizaje.epizy.com/55370970810.pdfIn PDF document text
    • http://xokutamewa.rf.gd/google_sheet_script_array.pdfIn PDF document text
    • http://lewafozilit.epizy.com/juwuruvunufigana.pdfIn PDF document text
    • http://dijemawijopetu.epizy.com/95046314482.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_off0000d450.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD450 5292 bytes
SHA-256: 965f027ad5dd6f8fc26dbef1f57f4cc24ca59824aa65898ec1acaabfc3d27108
font_01_sfnt_off0000e667.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE667 15988 bytes
SHA-256: 6c61f4b9d8aac9ad81ab51d695857faffea2930fcb40cfec7ecb853fc6535be3