Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d4443af92fecf6b…

MALICIOUS

PDF

79.8 KB Created: 2021-04-07 13:24:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 001c85cdbe0dc5e591b3d26713ad98f9 SHA-1: 99567bea27772773b31c47fca7a411e944fe2df1 SHA-256: 2d4443af92fecf6bfd48e22ad03fcaac19174629578d783a58bed3319cd015be
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 0.9997

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://lozipotod.ru/strik?utm_term=tracfone+lg+classic+flip+l125dl PDF link annotation
    • http://pogibofabut.getenjoyment.net/tidadipegit.pdfIn PDF document text
    • http://wojisub.mypressonline.com/scientific_names_of_animals_a_z.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458431/normal_5feb321e55766.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460694/normal_5febb27b82d53.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484999/normal_60613c49adbfa.pdfIn PDF document text
    • https://cdn.sqhk.co/towevefizub/7idphhx/popular_hashtags_right_now_instagram.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410013/normal_6069d1f8bae95.pdfIn PDF document text
    • https://cdn.sqhk.co/fugovigul/ibgfnNa/24236089596.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427793/normal_5fdbd800ed872.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fefekug.rf.gd/bematech_4200_drivers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb9c255f-aa99-449a-9c53-0be00f51d734/xoletagogigamavegenogo.pdfIn PDF document text
    • http://bodirinukamole.onlinewebshop.net/courts_of_heaven_for_beginners_youtube.pdfIn PDF document text
    • https://6b9ff03a-ef48-417a-a14c-919df0f903d0.filesusr.com/ugd/f459ea_29b760dff94e485cb8b3fccabfc0f6ea.pdf?index=trueIn PDF document text
    • https://2489a575-72f7-492f-b117-28cfe4a4d2a3.filesusr.com/ugd/d81705_2a5dfbb38e5a493cbbaa769b048788cb.pdf?index=trueIn PDF document text
    • https://d5bea983-5bca-41ba-aae6-6b688785cc77.filesusr.com/ugd/9ec29b_0f004fbe4b654b8888f68b978cc63fee.pdf?index=trueIn PDF document text
    • https://6ba8113a-99dc-4618-97bf-d7180f10ff72.filesusr.com/ugd/b6edda_e7d9437265be4a89bcfefcb4713ed6ea.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/44f40aaf-904c-4913-828a-233175ebe53f/24132273136.pdfIn PDF document text
    • http://witosef.rf.gd/jozumosenexunofo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b91d10bb-6bc9-40b9-aecb-49e90327f97a/craftsman_1_3_hp_2_gallon_portable_air_compressor.pdfIn PDF document text
    • http://tepoduzurajik.epizy.com/atresia_bilier_pada_bayi.pdfIn PDF document text
    • https://551f0ad2-75d1-4009-b90b-2f3e3e20230b.filesusr.com/ugd/c2bf0a_1b8e67a8155546c58a16f94643600f9a.pdf?index=trueIn 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_off0000f77b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF77B 5580 bytes
SHA-256: fe69a2ae7a0ece28961c30c4574bc1875f3b93568e97fdb05661f8806ebd867d
font_01_sfnt_off00010a8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A8E 11544 bytes
SHA-256: 7e56576147330603bec1cef516ebb81fbd19aa21a0996a364fc026fb68c4c015

Open this report in the interactive analyzer, or submit your own file for analysis.