Malicious PDF — malware analysis report

Static analysis result for SHA-256 4697e5e5b4a59816…

MALICIOUS

PDF

73.9 KB Created: 2021-03-31 04:32:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: ebb39bcd285e86b46578e0efbeed826b SHA-1: 3f66c9c03c3675ceab9c8aa00721d487c398cbb6 SHA-256: 4697e5e5b4a598165b23834f57a01c7abf599915188d29af180b10b1be07d52c
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=cuanto+equivale+un+metro+cubico+en+cm3 PDF link annotation
    • http://digitalcalakk1.xyz/letapegesimijafadokapusuvw4hm8.pdfIn PDF document text
    • http://snail-case.store/645938704656jspk.pdfIn PDF document text
    • http://reduslim-shopofficial.site/pixel_3_launcher_rootless_apkicxex.pdfIn PDF document text
    • http://loneresel.mygamesonline.org/cub_scout_lion_handbook_2018.pdfIn PDF document text
    • http://xomutukegadoj.mypressonline.com/how_long_does_it_take_for_evening_primrose_oil_to_work_for_breast_pain.pdfIn PDF document text
    • http://servicesforsupport.com/celtx_vs_final_draft_2020nm32s.pdfIn PDF document text
    • http://pumba-timon.space/how_to_hide_1st_page_number_in_wordazbrf.pdfIn PDF document text
    • http://zegererevez.medianewsonline.com/31535081523.pdfIn PDF document text
    • http://autocredit.moscow/aashto_highway_drainage_manualqzu0c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468823/normal_5fe85c19b9d98.pdfIn PDF document text
    • http://sevastopol.sale/gasukopugunu35f.pdfIn PDF document text
    • http://strgb2.ru/malamowezikubenulirurirodgzxkq.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404503/normal_5fc71acfd03ae.pdfIn PDF document text
    • http://medyayazilimtr.com/dugobudoremanazugegabigvssyq.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://f84ffea9-2755-49c2-9cb5-47ca8b55fe65.filesusr.com/ugd/0adedf_1ea9f775872d47779e484c06b8c4dae1.pdf?index=trueIn PDF document text
    • https://de2ee6d5-caaa-4265-b15c-40100ab77d99.filesusr.com/ugd/d43733_d127963df1e149029737465b8f5d2756.pdf?index=trueIn PDF document text
    • http://xepuzakudera.atwebpages.com/27975818670.pdfIn PDF document text
    • https://9eaa565e-fb97-40b4-b096-d6760803f699.filesusr.com/ugd/55e2c6_bae32da9c20743a2be1b80689aa924af.pdf?index=trueIn PDF document text
    • http://zejibanunepi.myartsonline.com/how_to_level_lockpicking_rogue.pdfIn PDF document text
    • http://fazaburifug.myartsonline.com/angular_8_tutorial_free_download.pdfIn PDF document text
    • http://dugerem.atwebpages.com/branches_of_social_psychology.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_off0000df8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF8D 5164 bytes
SHA-256: 7c55db8d302d4affaf726790ea752dc5733baaf446f12b8b52ca3f8f3fe89dff
font_01_sfnt_off0000f114.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF114 11920 bytes
SHA-256: 0d3922d00ad93d6f4d6b3368d608cce2dbc05902b79feac639c8b08436064bcf

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