Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f5622fac349a62e…

MALICIOUS

PDF

71.6 KB Created: 2021-02-20 09:42:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 1216a05fe8a42170436e3b458f34e016 SHA-1: c64aaf08db8a7212faac5ab732d04ac2e64a0db4 SHA-256: 5f5622fac349a62e95afd1dd8c20b54f8f9204fc017ac1865b02114bbe219b54
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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 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.
  • 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://baarspo.ru/wix?keyword=heart+healthy+crossword+puzzle+answers PDF link annotation
    • https://cdn.sqhk.co/sinemajud/iaLhbgc/fortress_defense_the_siege_tower.pdfIn PDF document text
    • https://tabureribe.weebly.com/uploads/1/3/0/8/130813037/rapep.pdfIn PDF document text
    • https://lomizagufefeg.weebly.com/uploads/1/3/4/0/134096038/jokugokazikefub.pdfIn PDF document text
    • https://xejotonevuxujuj.weebly.com/uploads/1/3/1/3/131379732/mepeza.pdfIn PDF document text
    • https://fusofopafufet.weebly.com/uploads/1/3/5/2/135294951/zorovif_mowedavomavomow.pdfIn PDF document text
    • https://zirakamu.weebly.com/uploads/1/3/1/3/131398357/9810873.pdfIn PDF document text
    • https://wujadadi.weebly.com/uploads/1/3/1/0/131070572/burugenunibiw-puwozajit.pdfIn PDF document text
    • https://nuzewotamomumaf.weebly.com/uploads/1/3/4/7/134701518/876ed7afbf40.pdfIn PDF document text
    • https://cdn.sqhk.co/dejijadu/hOHhhs0/instagram_story_viewer_order_update.pdfIn PDF document text
    • https://pixasowurixes.weebly.com/uploads/1/3/4/9/134904492/maruvuzosej.pdfIn PDF document text
    • https://veriketosamu.weebly.com/uploads/1/3/4/6/134675732/7760651.pdfIn PDF document text
    • https://fenibelamej.weebly.com/uploads/1/3/4/4/134464240/tikivebak.pdfIn PDF document text
    • https://varepanuror.weebly.com/uploads/1/3/5/3/135394497/c65d63e8ae0ae.pdfIn PDF document text
    • https://cdn.sqhk.co/vonirosidejo/fkCjgvz/modern_magic_the_gathering_tournaments_near_me.pdfIn PDF document text
    • https://gumomerad.weebly.com/uploads/1/3/1/8/131856086/latotupaju_gezuki_rijagojosarij_takisaxis.pdfIn PDF document text
    • https://latezuletarok.weebly.com/uploads/1/3/5/2/135298634/loluv_lojubigit_borava_dexekamugeraj.pdfIn PDF document text
    • https://taxufutusa.weebly.com/uploads/1/3/4/5/134514166/879245684.pdfIn PDF document text
    • https://lopamazaveseku.weebly.com/uploads/1/3/4/6/134643240/vonigipedagenoxezus.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000dbf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBF6 5364 bytes
SHA-256: aeeec58ecad97660af26ccaa70dbc435b87b860b13924b261eb2035f10e135c0
font_01_sfnt_off0000ee52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE52 10072 bytes
SHA-256: f0b8029624b67cc56f67ce8e5b7c5647c529ba17e564193d6489ba941eea85a1