Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe0b5117393ea0f8…

MALICIOUS

PDF

94.6 KB Created: 2021-04-02 04:57:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 6875ce819b759d5c0101bb0fe24bf978 SHA-1: 268364d37bfcba04cb15a13daa6091476ba4e9ee SHA-256: fe0b5117393ea0f8b2ad5e8d69e88f34a344cf3ca714f66ac31243956e1d20b6
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs pointing to disposable domains and link farms, a common tactic for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9958

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/strik?utm_term=star+trek+enterprise+season+4+episode+10+cast PDF link annotation
    • http://lorenbayi.com/59776055953zoynn.pdfIn PDF document text
    • https://cdn.sqhk.co/xolokenuw/Nzghdja/74881978399.pdfIn PDF document text
    • http://radanews.site/modal_verb_can_in_spanishp57bw.pdfIn PDF document text
    • https://cdn.sqhk.co/webunojixisa/ibjhjhr/rixotunarene.pdfIn PDF document text
    • http://muzibatixabu.mypressonline.com/felidavenirokafulenipizo.pdfIn PDF document text
    • https://ronizozobofer.weebly.com/uploads/1/3/4/6/134654069/dobudetexex-winele-sebokobixosim-lebij.pdfIn PDF document text
    • http://manapuzasupin.sportsontheweb.net/land_development_business_plan.pdfIn PDF document text
    • http://jiwabozaxexe.mypressonline.com/93107340122.pdfIn PDF document text
    • http://changepass.online/ukulele_strumming_patterns_4_4d4fg6.pdfIn PDF document text
    • http://haustova.com/alaska_drivers_license_renewal_form_jamaicaabh2v.pdfIn PDF document text
    • http://kugaraginoja.mypressonline.com/pneumonia_kongenital_adalah.pdfIn PDF document text
    • http://mejumafegebameg.mygamesonline.org/dazexusovi.pdfIn PDF document text
    • https://badadivuzadan.weebly.com/uploads/1/3/4/5/134523039/sisuf.pdfIn PDF document text
    • http://photoforce.ru/disewadujixezuvazipewr19ju.pdfIn PDF document text
    • https://cdn.sqhk.co/wexovezojab/sjigjTc/twilight_struggle_board_game_online.pdfIn PDF document text
    • https://cdn.sqhk.co/suzeboxiwo/iHfhjeC/bubble_tea_calories_taro.pdfIn PDF document text
    • http://acupofjacob.com/how_to_check_my_work_schedule_at_starbucksvfck9.pdfIn PDF document text
    • http://qqkaxes.xyz/esc_heart_failure_guidelines_201808lsw.pdfIn PDF document text
    • https://cdn.sqhk.co/kufalavoxig/11uuvpZ/13023275625.pdfIn PDF document text
    • https://wufisosudima.weebly.com/uploads/1/3/0/8/130874090/linufabavelarabub.pdfIn PDF document text
    • http://proba7.xyz/9184653985c481c.pdfIn PDF document text
    • http://max-lifting.store/gutusiwuximewafe7boqf.pdfIn PDF document text
    • http://sezejawi.mypressonline.com/where_to_buy_lg_washer_parts.pdfIn PDF document text
    • http://memiwuv.mygamesonline.org/kunitamuko.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jikelaxapexa.onlinewebshop.net/coordinating_conjunctions_multiple_choice_exercises.pdfIn PDF document text
    • http://zowofiz.myartsonline.com/orden_alismatales.pdfIn PDF document text
    • http://xirofapinowud.atwebpages.com/46462674533.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_off00013478.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13478 5484 bytes
SHA-256: f1f79e98e711babdd2191125fb13aac8c6d6e464a113525817afd0611bcbabbf
font_01_sfnt_off00014741.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14741 10804 bytes
SHA-256: f4f275b38cf4b1345034d4d1f4cf82e597ab0a0e00720164d2c187e0fe4085f8

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