Malicious PDF — malware analysis report

Static analysis result for SHA-256 148f0288a10e2d34…

MALICIOUS

PDF

81.4 KB Created: 2021-03-22 22:07:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: fe020bad29a128b7ed15c9f6ac3e5aa0 SHA-1: bd984790fdef46c2767a665c000bf3370fcdf32e SHA-256: 148f0288a10e2d34439d5bcb00f19ad2480f9d68f1530d9795571799073094b0
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://fokemale.ru/award?keyword=cbse+class+12+date+sheet+2020+pdf+download PDF link annotation
    • http://levitajagukog.scienceontheweb.net/tutorial_macro_in_excel_2020.pdfIn PDF document text
    • http://vupiziriwopo.22web.org/tumefesuvabejozawolukupi.pdfIn PDF document text
    • http://vezesan.iblogger.org/64174628509.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491168/normal_603e8bd38be6f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470029/normal_6013706c2e389.pdfIn PDF document text
    • http://lugabev.mygamesonline.org/adjective_words_list.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419430/normal_603bc3eaebc1f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480594/normal_602d776f2d596.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372960/normal_604cc48b36b39.pdfIn PDF document text
    • http://rajonilelubej.22web.org/jubezabineboper.pdfIn PDF document text
    • http://wedurorokim.mypressonline.com/12561240092.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406168/normal_603c6ce33f64b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478438/normal_60512fd924efc.pdfIn PDF document text
    • http://faguduni.22web.org/hypertension_guidelines_uk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vetanafajodomek.epizy.com/94673064911.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a998918d-0cb1-416d-b4da-32a8798469ff/is_death_note_based_on_a_true_story.pdfIn PDF document text
    • http://kodireso.epizy.com/mathematics_zambian_syllabus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9775f1c4-c848-48df-aa74-311cddbe93ae/5106226899.pdfIn PDF document text
    • http://wixesikive.epizy.com/68074135612.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64597926-19f0-41c1-acb9-ade0824624bd/dungeons_and_dragons_basic_rules.pdfIn PDF document text
    • http://fegozovot.rf.gd/how_to_use_self_clean_oven_ge_profile.pdfIn PDF document text
    • http://voginafukut.rf.gd/effective_vs_efficient.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70bbea02-ce30-4d3c-87e6-5dbb24fc2d69/fagenedikenet.pdfIn PDF document text
    • http://vanuragevexofe.rf.gd/is_honeywell_humidifier_good.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2faf754b-d29a-4fe6-a158-2cc4bc0d130c/vidujujabumenuk.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fe59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE59 5612 bytes
SHA-256: 74d2992ffe68e4cc4cbd4401e3ae06191753da0264d177df84190f4678b91875
font_01_sfnt_off00011188.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11188 10736 bytes
SHA-256: de3f2e1327c66dcea2e77914100b956ed333a866f768a9e73f22be21d7213a13

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