Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b095dbd7a8c24a0…

MALICIOUS

PDF

77.3 KB Created: 2021-03-24 20:54:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 0cc186905c48e638b058751c23b38e7e SHA-1: 7d551147176a4545f65da5cbf85b0d8930fdfcc2 SHA-256: 0b095dbd7a8c24a02b3ef19c0507f3d2790a476193a56d3c1f2380cbbe6f3918
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan threat. It contains numerous external URIs, with a primary one pointing to 'jumiwimov.ru', suggesting a redirection to a malicious site. The document body, though heavily obfuscated, appears to contain search-related text, reinforcing the phishing lure.

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
  • 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://jumiwimov.ru/wix?keyword=what+does+illinois+fp+license+plate+mean PDF link annotation
    • http://ledukamu.iblogger.org/bus_48_schedule_toronto_to_ottawa.pdfIn PDF document text
    • http://rupitori.66ghz.com/lessons_learned_template_agile.pdfIn PDF document text
    • https://cdn.sqhk.co/gebemiwisero/iiigiBh/24s_voucher_code.pdfIn PDF document text
    • http://suzolovopu.iblogger.org/gavixolukikijovuda.pdfIn PDF document text
    • http://dapumad.iblogger.org/niguxomawikotekubamuwekez.pdfIn PDF document text
    • http://xelirap.22web.org/rental_agreement_word_doc_template.pdfIn PDF document text
    • https://jajelawipazug.weebly.com/uploads/1/3/0/7/130739535/4683908.pdfIn PDF document text
    • https://tiwofimobodes.weebly.com/uploads/1/3/4/0/134040820/2913273.pdfIn PDF document text
    • https://cdn.sqhk.co/wunokebewoz/eii6Qjc/frozen_chicken_goes_bad.pdfIn PDF document text
    • https://cdn.sqhk.co/rowalulo/jhtgcUq/extra_loud_song_ringtone_mp3_free_download.pdfIn PDF document text
    • http://faniwojelanebe.22web.org/puxoloxafutisowegoki.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/4fdf2528-7b36-41a0-bae6-ee6ea4363e3a/juteropira.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cbe0ffd4-86ae-4a9e-b8be-da5b9b3e7928/sat_sample_tests.pdfIn PDF document text
    • http://segidamilezuv.epizy.com/ketakubesip.pdfIn PDF document text
    • http://firixafuzive.rf.gd/canon_eos_50d_software_mac.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10827afa-9a14-4c52-9d33-7795b623f496/67961081887.pdfIn PDF document text
    • http://xepivuze.rf.gd/makufusatovaga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16c0ffd7-49ae-4ed6-9fee-6a7a90bf82f7/le_petit_prince_citation_ma_rose.pdfIn PDF document text
    • http://xotaxebotejij.rf.gd/pillars_of_eternity_strategy_guide_download.pdfIn PDF document text
    • http://sutobilesu.rf.gd/85227754143.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_off0000f0b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0B2 5312 bytes
SHA-256: 63217d3da679c6feabeda5e799999b913e2b53b015a4e1f887baac568cf19049
font_01_sfnt_off000102b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102B2 10736 bytes
SHA-256: 3146d0d07204658391dec86fd7d5fdb12a494c22efd11dfc334086829856c6a7

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