Malicious PDF — malware analysis report

Static analysis result for SHA-256 58e421abdfc6b734…

MALICIOUS

PDF

70.4 KB Created: 2021-02-17 16:27:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 7f6e770a5abdbf6eb9c68e432d362d2b SHA-1: 9010880bb53335af78669cacbb0241c2a6d6cf0c SHA-256: 58e421abdfc6b734095bdad22e88e3aa5fc3a088eb4c1aa2cc2fa91daddc866e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wix?keyword=annie%2527s+ice+cream+sandwiches PDF link annotation
    • https://datokusowijodo.weebly.com/uploads/1/3/0/7/130776434/dugol_xakefekekuwamub_jusotixaj.pdfIn PDF document text
    • http://reduslimer.website/770449980316s2mx.pdfIn PDF document text
    • https://cdn.sqhk.co/kitujesijak/ibjjBDE/metepivetatepakib.pdfIn PDF document text
    • http://qqkaxes.xyz/pemugeb1yq5.pdfIn PDF document text
    • https://tatelemu.weebly.com/uploads/1/3/1/1/131164239/f2e26eef8.pdfIn PDF document text
    • https://povebosi.weebly.com/uploads/1/3/5/3/135346093/paletot-papofavudule.pdfIn PDF document text
    • https://cdn.sqhk.co/wugeguxu/gQNUBSA/keririresalenupi.pdfIn PDF document text
    • http://bottlechainworld.com/lotro_beorning_guide_20187go77.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wubuxosivukip.epizy.com/61453963218.pdfIn PDF document text
    • http://nitiparavedo.epizy.com/how_to_fix_submersible_water_pump_in_borewell.pdfIn PDF document text
    • http://natizat.epizy.com/how_to_learn_shabd_roop_in_sanskrit.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_off0000d801.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD801 5260 bytes
SHA-256: 89ac7cd92f9b849e29cca4e59e5203a8bf7d73141e15cad89675052f6e67e69f
font_01_sfnt_off0000e9d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9D3 10364 bytes
SHA-256: 5f3d2230f8b5238b33a7cd59413bfa48b5c55366e6485167e4aff6f399636835