Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fe46880376ac234…

MALICIOUS

PDF

99.2 KB Created: 2021-03-13 20:24:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 698f881f2d436441f1173bdee02d4e72 SHA-1: ed0704a6c28daced66e72817164977d1a9fdb4de SHA-256: 0fe46880376ac2341eefb68c22de4646045d69715bf9e172605c5cd107de7cf0
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The presence of numerous embedded URLs, many hosted on disposable domains, strongly suggests a phishing or malware distribution campaign. While no scripts were directly extracted, the PDF structure and embedded links are indicative of a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://soxebez.ru/wix?keyword=introduction+to+poetry+13th+edition+kennedy+pdf PDF link annotation
    • http://mojadejazisapa.sportsontheweb.net/7981340471.pdfIn PDF document text
    • http://sunuxew.22web.org/water_pollution_consequences.pdfIn PDF document text
    • https://cdn.sqhk.co/jeporikate/aiiAgif/galaxian_nes_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/luwonowuwig/giSGjht/canvas_parent_account_set_up.pdfIn PDF document text
    • https://cdn.sqhk.co/bizujutenifo/RAjcjaj/conker_s_bad_fur_day_funny_quotes.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455673/normal_603a6cd21c2ec.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388824/normal_600583c8eac27.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464521/normal_5fccbf17a4e95.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494136/normal_5fd9aef79d3c5.pdfIn PDF document text
    • https://cdn.sqhk.co/befozaxulot/gdrggii/free_slot_machines_play_now.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401691/normal_5fdfd8c6de20f.pdfIn PDF document text
    • http://bosemefawixuwov.mypressonline.com/navy_advancement_quotas_fall_2020.pdfIn PDF document text
    • http://mosovonetuvu.iblogger.org/oscilloscope_hantek_6022be.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475861/normal_6024f4791ba15.pdfIn PDF document text
    • http://zomoxoxuriw.mypressonline.com/psychological_assessment_and_report_writing_goldfinger.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411932/normal_5fc9e5e7e92da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376380/normal_5fe826f69cda5.pdfIn PDF document text
    • https://cdn.sqhk.co/poronujefino/cTz3Jod/7756859552.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fekabama.epizy.com/how_to_avoid_coastal_erosion.pdfIn PDF document text
    • http://mogejizezapeb.epizy.com/dosedonupeb.pdfIn PDF document text
    • http://jemileti.atwebpages.com/kojusi.pdfIn PDF document text
    • http://pibedidijuk.epizy.com/29277398750.pdfIn PDF document text
    • http://tiwemevi.rf.gd/c_programming_language_sample_questions.pdfIn PDF document text
    • http://gewofudi.rf.gd/tokolinozuz.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_off00013e35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E35 5144 bytes
SHA-256: 2d984b3ff383f035286bd3596cc3691ee2ce60a722903473ceb84689d058c1d9
font_01_sfnt_off00014fc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14FC7 15340 bytes
SHA-256: 9f29d12279730528c6ed9917cf704954a37cf9b2fdc356e3a8bfa7524fce4f32

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