Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ce2ccbf390ba544…

MALICIOUS

PDF

76.0 KB Created: 2021-04-04 01:06:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: c3d4a208ffe2dbbbbe7f8a981ff674c3 SHA-1: 7533022913faab0a21344b5c68fe135f9a173551 SHA-256: 0ce2ccbf390ba54459595f094b68b285bb8f26b7431647d7990b570dda26947d
126 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs pointing to disposable domains, suggesting a link farm or phishing lure. The document body, though heavily obfuscated, contains keywords related to 'Schneider Automatisme' and 'catalogue', likely used to trick users into clicking on the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jottigo.ru/award?keyword=catalogue+schneider+automatisme+pdf PDF link annotation
    • http://bestita.space/xasesafixelalasuxim73ag.pdfIn PDF document text
    • http://motivawka.online/kefotatia8oig.pdfIn PDF document text
    • http://sovumeriwox.mygamesonline.org/phytochemical_analysis_of_vernonia_amygdalina.pdfIn PDF document text
    • http://expressvpn.store/traffic_engineering_design_principles_and_practiceja8yx.pdfIn PDF document text
    • http://viteroludobano.mypressonline.com/lefinilaroneredifob.pdfIn PDF document text
    • http://powerhdniy.space/vilasupisimijezfd27.pdfIn PDF document text
    • http://zovizakuxefo.iblogger.org/grade_5_worksheets_english.pdfIn PDF document text
    • http://sivelural.mygamesonline.org/what_stars_are_in_the_night_sky_tonight.pdfIn PDF document text
    • http://jajuviramigawo.medianewsonline.com/kojalaxefu.pdfIn PDF document text
    • http://br1.red/fogewijegotipunirexu596v.pdfIn PDF document text
    • http://bazunujovi.scienceontheweb.net/puxekunetajawafubaxelu.pdfIn PDF document text
    • http://esclub.pro/pegipixewukunacitzp.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nifojasavolu.rf.gd/accounting_rate_of_return_example_problems.pdfIn PDF document text
    • https://s3.amazonaws.com/zexozavo/how_do_you_program_a_universal_remote_to_a_sceptre_tv.pdfIn PDF document text
    • http://bifovigavij.myartsonline.com/59595567991.pdfIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/amarachi_dance_music_video.pdfIn PDF document text
    • https://s3.amazonaws.com/suzujewa/36697531256.pdfIn PDF document text
    • http://nibizuladode.onlinewebshop.net/44227274556.pdfIn PDF document text
    • http://sipanokule.onlinewebshop.net/jokexidofuxoverajevi.pdfIn PDF document text
    • http://bakalawakajade.epizy.com/dalobowum.pdfIn PDF document text
    • https://s3.amazonaws.com/mafavuzenoliki/93676654375.pdfIn PDF document text
    • https://s3.amazonaws.com/pavujiniz/widokosolasiluxisakafu.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_off0000e5d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5D0 5476 bytes
SHA-256: a0142c62aae868ed698369516e9bfb0652a443b44887f24eb651960c32b055c6
font_01_sfnt_off0000f83b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF83B 12816 bytes
SHA-256: af86edf17f4959af49c243f58c9fe9f3c513053f41d6b3dd3574aa49b0db7a5d

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