Malicious PDF — malware analysis report

Static analysis result for SHA-256 f606720f072d4146…

MALICIOUS

PDF

64.2 KB Created: 2021-02-04 11:57:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 001f2f192085ebe07dfa9e62cdc35c06 SHA-1: bdde42f1529bb692e45c7019a3dbf9e8acbd7a15 SHA-256: f606720f072d41463830215e47393b1675beaa9c917169610719fa2279a74272
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/shook?utm_term=submarine+jump+app In PDF document text
    • http://exclusmxpn.com/hack_coin_vua_bong_da_2020zfdhs.pdfIn PDF document text
    • http://pedron.fun/present_progressive_spanish_worksheet_doclcskz.pdfIn PDF document text
    • https://cdn.sqhk.co/tosuwukiwate/Wdsgdkj/township_and_range_search_arizona.pdfIn PDF document text
    • http://epipog.com/416869198637a4q.pdfIn PDF document text
    • http://vitrinachel.ru/mummy_returns_movie_in_tamil_downloadrpqop.pdfIn PDF document text
    • https://cdn.sqhk.co/kofosenolo/7Ubgfgg/90203019734.pdfIn PDF document text
    • https://cdn.sqhk.co/netimawifes/geoIXgj/zowegif.pdfIn PDF document text
    • http://lasns.fun/komumixebuzifatojilupikov0vyn.pdfIn PDF document text
    • http://pc-remont.website/ielts_11_test_3_listening_answeraitcq.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dagasopones/asics_uk_shoe_size_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/semuxemakaw/halti_harness_fitting_guide.pdfIn PDF document text
    • http://vuropomap.epizy.com/61948962699.pdfIn PDF document text
    • http://pevivudawof.epizy.com/gambler_guide_seal_online.pdfIn PDF document text
    • https://s3.amazonaws.com/robumuduluwise/new_born_baby_whatsapp_status.pdfIn PDF document text
    • https://s3.amazonaws.com/wazorixekunafob/wufulow.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_off0000be8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE8D 5076 bytes
SHA-256: 6c0cce041b47c410ec2bcb329018bc0bac13750384f03ee452e8a1aaa4be3b56
font_01_sfnt_off0000cfb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFB3 11128 bytes
SHA-256: ae66fcdb67f99cb7a8f4db6e43b691edda8aea808caa01a9750dcac37c97a22f