Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ada0dbb4148c6a0…

MALICIOUS

PDF

67.2 KB Created: 2021-02-16 07:40:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f2e34783287a9e47c077555ae62fd0c9 SHA-1: 973f9eef1ab44c30f3cc1cd45558d580d6ac1ac7 SHA-256: 2ada0dbb4148c6a0235e848da4a4f98534e6dd31bf455566892520cb488d77b7
186 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 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.
  • 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=stanley+bostitch+manual+floor+nailer PDF link annotation
    • https://basitonivi.weebly.com/uploads/1/3/4/5/134584834/1866444.pdfIn PDF document text
    • https://jagusidenoz.weebly.com/uploads/1/3/4/9/134902343/xitizoxupaloguwu.pdfIn PDF document text
    • https://noguvipeves.weebly.com/uploads/1/3/4/7/134717425/62a969a757.pdfIn PDF document text
    • https://xiwajuropoji.weebly.com/uploads/1/3/4/3/134371127/siroperisefo-luvomoposini-nibimibili-debikow.pdfIn PDF document text
    • https://cdn.sqhk.co/didatife/YRyajcH/dingtalk_lite_vs_standard.pdfIn PDF document text
    • https://cdn.sqhk.co/girewobo/DFihjhX/nalozebofokokomilik.pdfIn PDF document text
    • https://xazebuwojij.weebly.com/uploads/1/3/4/4/134467588/gexubowisuwasebifive.pdfIn PDF document text
    • https://junowebabozem.weebly.com/uploads/1/3/5/9/135965754/gigug-turofofaxiramo-tefoxudejefa-dobide.pdfIn PDF document text
    • http://repair-kvadrokopterov.ru/78608630985vez0z.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://borogibapomad.epizy.com/bangla_film_shikari_full_movie.pdfIn PDF document text
    • http://kakapefetabol.rf.gd/irrevocable_life_insurance_trust_template.pdfIn PDF document text
    • http://kovudefimure.rf.gd/sinusoidal_waveform_theory.pdfIn PDF document text
    • http://zidumive.rf.gd/fixing_sheetrock_cracks.pdfIn PDF document text
    • http://poziluxolebulu.epizy.com/ring_size_guide_mens.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_off0000c972.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC972 5468 bytes
SHA-256: 91c74fd4ab591b4a57c675719c444434a5dbc21b2484026fe1109372c2de8f42
font_01_sfnt_off0000dbe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBE2 10188 bytes
SHA-256: b67bc3871cc2bb4f68af5e2c1ad7e143473d6fd9a4973fde56f3612c4df10cc8