Malicious PDF — malware analysis report

Static analysis result for SHA-256 2055c84085c01ca2…

MALICIOUS

PDF

67.4 KB Created: 2020-11-11 08:33:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-20
MD5: a47970b9005ce0d95880cc77f8c9fe74 SHA-1: 099f3016f0f88ffb00a900ca367278aa1755b42b SHA-256: 2055c84085c01ca2c6997dbc412f37535b62bd69cbc4e3caf6510c348de4b9e6
214 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 8

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://fotobuwab.weebly.com/uploads/1/3/4/3/134368258/rodulenab.pdf In PDF document text
    • https://pabovojusu.weebly.com/uploads/1/3/4/3/134339388/manote.pdfIn PDF document text
    • https://walijogopabo.weebly.com/uploads/1/3/0/7/130776167/da942785a349.pdfIn PDF document text
    • https://nitetezelimon.weebly.com/uploads/1/3/1/4/131438651/ruvus_fexafurimiditi_tamasetodefa_gimajubadare.pdfIn PDF document text
    • https://s3.amazonaws.com/fajixe/28315292972.pdfIn PDF document text
    • https://folemazilepi.weebly.com/uploads/1/3/1/1/131164248/fdd63f788.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/biodiversity_and_conservation_file.pdfIn PDF document text
    • https://xotiroxo.weebly.com/uploads/1/3/0/7/130776105/xiwunakazeko.pdfIn PDF document text
    • https://jubunukaf.weebly.com/uploads/1/3/1/4/131483214/4807418.pdfIn PDF document text
    • https://traffset.ru/strik?keyword=construction+simulator+2015+modPDF link annotation
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000c903.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000c903.bin)
    • https://uploads.strikinglycdn.com/files/40c74148-6365-48ba-8e90-3fad76a7209e/batinijuvu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96f54bb6-6bde-420b-847b-f86f42610d74/mikugamojejoguza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bbe10401-b732-4bad-b7a4-b4f3246eca63/star_wars_8_streaming_vk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b94c102-bd59-479f-9c1f-e2b41a766604/motion_study_guide_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97874ef7-a469-4b03-a02c-d3035539475e/visilufofureded.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 extracted file (font_00_sfnt_off0000c903.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c903.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC903 5440 bytes
SHA-256: d424f81feca0ce33a7d3eacc0beb1f75862108d02d1839e2081c31dc695dfda7
font_01_sfnt_off0000db6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB6B 11000 bytes
SHA-256: a621ac4b970135a8af664e5c59437ae461030a06d374588ca615166a84516491