Malicious PDF — malware analysis report

Static analysis result for SHA-256 17b356d21036bd60…

MALICIOUS

PDF

71.4 KB Created: 2021-01-20 03:50:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 1b4e0c3ad7605dc0206cf25d3065a8b6 SHA-1: fe4e2d46098ff2f82ef84a3da1bab3bd2150eb54 SHA-256: 17b356d21036bd606e3465f6ef28a067c1853ab99a43732fcd6792618d378d4b
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://bologen.ru/123?utm_term=minecraft+1.5.2+jar+google+drive PDF link annotation
    • https://site-1237736.mozfiles.com/files/1237736/wipubugiladuxiwopev.pdfIn PDF document text
    • https://towipikegogu.weebly.com/uploads/1/3/4/6/134690187/2a02cfc4e96.pdfIn PDF document text
    • https://xazulifego.weebly.com/uploads/1/3/4/7/134727283/7304008.pdfIn PDF document text
    • https://gakafapokizi.weebly.com/uploads/1/3/5/3/135319358/sifime.pdfIn PDF document text
    • https://ravemazezaj.weebly.com/uploads/1/3/4/8/134885195/mekis.pdfIn PDF document text
    • https://sirutobij.weebly.com/uploads/1/3/0/7/130776617/4c9e3.pdfIn PDF document text
    • https://nokibuvekunel.weebly.com/uploads/1/3/1/1/131164430/fuxidasosejija.pdfIn PDF document text
    • https://givolejemaxo.weebly.com/uploads/1/3/5/3/135345859/gapeg.pdfIn PDF document text
    • https://kigodebilak.weebly.com/uploads/1/3/5/2/135297846/8884337.pdfIn PDF document text
    • https://site-1174531.mozfiles.com/files/1174531/snow_canyon_trails_map.pdfIn PDF document text
    • https://cdn.sqhk.co/tefupudoma/Ljahbhg/62682882823.pdfIn PDF document text
    • https://cdn.sqhk.co/jalafimimodo/agi9hhX/tribles_inc_chattanooga_tn.pdfIn PDF document text
    • https://zunenevalomedo.weebly.com/uploads/1/3/4/8/134855990/602532.pdfIn PDF document text
    • https://site-1166676.mozfiles.com/files/1166676/who_s_gonna_be_your_man_lyrics.pdfIn PDF document text
    • https://moxitamun.weebly.com/uploads/1/3/4/0/134040854/f31d2046f638390.pdfIn PDF document text
    • https://bovefunovowuto.weebly.com/uploads/1/3/0/8/130873908/51d2179d.pdfIn PDF document text
    • https://site-1168251.mozfiles.com/files/1168251/26786833191.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bevowamudad.epizy.com/gitasuvodakabukepukiwefag.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_off0000d952.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD952 5492 bytes
SHA-256: 034edd2d8820ff78d719b2e6d2b915d0d730476ee98be3bc922c89b2ca249cf6
font_01_sfnt_off0000ec41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC41 10616 bytes
SHA-256: f501fc1e0c6b2882cbd53167ff24bd1d9a38534f86887e89ae9e49f8599c7511

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