Malicious PDF — malware analysis report

Static analysis result for SHA-256 e69971a3d5d78116…

MALICIOUS

PDF

73.8 KB Created: 2021-05-03 19:07:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 0cb3adc8c4e301cf3cfa215b054abb6e SHA-1: 40e0e81ff8b16b6ed7d9a24dbce9ba8fcc6c94e0 SHA-256: e69971a3d5d78116eb0ab1ef9e8603a1c0f112b472f415528c160389ced8d11f
126 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous external URIs, with a primary lure pointing to 'https://jottigo.ru/strik?utm_term=dungeons+and+dragons+monster+manual+free', suggesting a social engineering attempt to trick users into downloading further content. The document body, though heavily obfuscated, appears to be a lure related to 'Dungeons and Dragons Monster Manual free'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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/strik?utm_term=dungeons+and+dragons+monster+manual+free PDF link annotation
    • http://brumbum3.xyz/zizamemoxatexogepqklb.pdfIn PDF document text
    • http://winoorama.fun/how_much_does_police_get_paid_per_hourvo2gg.pdfIn PDF document text
    • http://odebayitrafikhizmeti.com/23426303884epaz0.pdfIn PDF document text
    • http://shoes-storie.club/thesaurus_rogethw6bb.pdfIn PDF document text
    • http://reduslimitalia-official.website/penguin_readers_chomikuj49lvn.pdfIn PDF document text
    • http://usblighter24.site/36506901965cpwqv.pdfIn PDF document text
    • https://cdn.sqhk.co/revikokelobu/iGgfFxS/paintball_near_me_party.pdfIn PDF document text
    • https://cdn.sqhk.co/nodomepe/Fiagd2l/22775659059.pdfIn PDF document text
    • http://lnstagram-office.com/walmart_neighborhood_market_near_me_pharmacye0rxt.pdfIn PDF document text
    • https://cdn.sqhk.co/fezusife/P0GBoid/dodiwotokobaverewux.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wufejupixixot.epizy.com/61038210656.pdfIn PDF document text
    • http://ditorodizo.epizy.com/38077030787.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10cbf412-4c88-4f2e-bd54-c2b435b1fea3/nuxovinirujasop.pdfIn PDF document text
    • http://setowibuvi.epizy.com/85247165723.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b83e569-ec9b-4c1d-88a6-5c5604da387f/gumuvidu.pdfIn PDF document text
    • http://zivuneko.epizy.com/ros_and_guil_are_dead.pdfIn PDF document text
    • http://xibobok.rf.gd/christopher_watts_discovery_report.pdfIn PDF document text
    • http://fewigixof.rf.gd/panifudafunopetek.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_off0000e19a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE19A 5228 bytes
SHA-256: 2cdd2a53e73a24125b8b3d2c4e3344e5fa78b59dd072b523e2285a0df18322a3
font_01_sfnt_off0000f353.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF353 10876 bytes
SHA-256: 750bced71f0cbbc7d2306250df996312dff8602589548257f329b253356fec6c

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