Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ebed79a20eb88ce…

MALICIOUS

PDF

75.1 KB Created: 2021-05-08 05:09:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: bb8b23997668cea04085f204a5047959 SHA-1: b0bdc9690513a84933e3e36f7bbedcdc9b8e8995 SHA-256: 2ebed79a20eb88ce319afd49e93f1e948d1ef0905c0f9dad278e6031e45ccdd5
66 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by 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 0.9995

Heuristics 4

  • 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://fokemale.ru/strik?utm_term=how+to+hook+up+my+home+theater+system PDF link annotation
    • https://cdn.sqhk.co/mikevoponage/qighbk7/bavafigudovivetuselan.pdfIn PDF document text
    • https://pokekuxabinupar.weebly.com/uploads/1/3/4/0/134016783/23ac5.pdfIn PDF document text
    • https://regurawuxafedan.weebly.com/uploads/1/3/0/7/130740517/jesamope_kidimujopo.pdfIn PDF document text
    • https://cdn.sqhk.co/sujoxeti/gTNGSKJ/reactive_form_checkbox_angular_7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469386/normal_6026395617655.pdfIn PDF document text
    • https://panebafizi.weebly.com/uploads/1/3/4/3/134365464/5662890.pdfIn PDF document text
    • http://tamakar.xyz/composite_figures_area_and_perimeter_worksheetr9qlj.pdfIn PDF document text
    • https://wikifezetusu.weebly.com/uploads/1/3/5/3/135306480/xasupulib.pdfIn PDF document text
    • https://cdn.sqhk.co/zamokaxu/VgiIhdk/escape_cross_training_jump_rope.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370555/normal_604bbb9aae326.pdfIn PDF document text
    • https://cdn.sqhk.co/futidiwe/jaZbKTq/battle_royale_simulator_roblox_all_codes.pdfIn PDF document text
    • https://cdn.sqhk.co/ruduligived/hhbihHw/zamuvobolikanobatow.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496584/normal_6036b1f4936ca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386337/normal_604840ef5dae0.pdfIn PDF document text
    • https://cdn.sqhk.co/xolafunodo/jcjdkgg/how_to_throw_a_knife_no_spin_method.pdfIn PDF document text
    • http://umkatrade.ru/806344433386sg2d.pdfIn PDF document text
    • https://xilamebi.weebly.com/uploads/1/3/4/5/134598653/motawasefonepawibari.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jevopemosod/afghan_video_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/vizegemawokaxe/cpr_latest_guidelines_2018_ppt.pdfIn PDF document text
    • https://s3.amazonaws.com/xisefowu/ae_watan_aabad_rahe_tu_status.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawe/what_is_acidic_and_basic_salt.pdfIn PDF document text
    • https://s3.amazonaws.com/kudufigunabi/animation_video_maker_software.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_off0000e928.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE928 5244 bytes
SHA-256: d17562cf643cd4a1849fda22e067a284e42496b76df9c10c307c5ebc298aa988
font_01_sfnt_off0000fae1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAE1 10484 bytes
SHA-256: e787530da1e1181efa615b9876c2565761d02477090ee11d715d5a13aea5704b

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