Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ae73141247f551c…

MALICIOUS

PDF

89.1 KB Created: 2021-04-20 20:42:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: fb2bc0ef4851a7b34d58bc40e43542c2 SHA-1: aa5ea45d3901aef708c239fdb0a62896e87a3445 SHA-256: 2ae73141247f551c53ceb42d0a4ab65974dcb10556ff351a590ef607f886d211
126 Risk Score

Malware Insights

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

The sample is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous external URIs, including one that appears to be a redirector with a deceptive query parameter related to English verbs. This suggests the document is designed to trick users into visiting malicious websites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://gimoguvi.ru/strik?utm_term=100+verbos+irregulares+en+ingles+presente+pasado+y+participio+y+significado PDF link annotation
    • http://mapotilij.mygamesonline.org/latejezugaxo.pdfIn PDF document text
    • http://okclub.org/ualr_systems_engineering_degree_plann227b.pdfIn PDF document text
    • http://banademebilite.sportsontheweb.net/38_bcs_result_download.pdfIn PDF document text
    • http://helen-art.ru/keurig_2.0_needle_cleaning_podsb1pj.pdfIn PDF document text
    • http://topfrag.rip/prepare_7_students_bookocygo.pdfIn PDF document text
    • http://fopekoriw.sportsontheweb.net/minovipazufofizeduporoman.pdfIn PDF document text
    • http://wiinorama.website/buxerolb86i.pdfIn PDF document text
    • http://finofubamu.mygamesonline.org/fobia_social_tratamiento.pdfIn PDF document text
    • https://bapoxaluw.weebly.com/uploads/1/3/4/7/134717037/fabow_memedib_jawikonevugaxid.pdfIn PDF document text
    • http://bumefivaloso.scienceontheweb.net/cardiovascular_physiology_concepts_richard_e_klabunde.pdfIn PDF document text
    • https://tivofexogi.weebly.com/uploads/1/3/1/3/131398075/2908429.pdfIn PDF document text
    • https://faporipito.weebly.com/uploads/1/3/4/6/134600592/newosabenifuke-jeduwip.pdfIn PDF document text
    • http://sugameloxufe.mywebcommunity.org/39477559172.pdfIn PDF document text
    • https://sobidoduwipiver.weebly.com/uploads/1/3/1/4/131406433/e09ca9a1a4.pdfIn PDF document text
    • http://tezuveripoxub.mypressonline.com/atomistique_et_liaison_chimique_cours.pdfIn PDF document text
    • http://xiruzox.mygamesonline.org/equivalent_fractions_worksheets_grade_4.pdfIn PDF document text
    • http://koponegigat.medianewsonline.com/68457296637.pdfIn PDF document text
    • http://excellent-spb.ru/set_opacity_of_background_image_android4hv14.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xirofapinowud.atwebpages.com/ndlea_guarantor_form.pdfIn PDF document text
    • http://bezopebadutaz.rf.gd/manualidades_con_reciclaje_de_botellas.pdfIn PDF document text
    • http://lunodemexixape.epizy.com/instructional_objectives_as_learning_outcomes.pdfIn PDF document text
    • http://wavagejofelodun.rf.gd/speak_your_mind_1_free_download.pdfIn PDF document text
    • http://teluroluxeterez.myartsonline.com/acr_eular_sle_criteria_2020.pdfIn PDF document text
    • http://sadoboxijowem.myartsonline.com/1499457697.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_off0001195c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1195C 5724 bytes
SHA-256: c9e34421ac4c2f0e24696590add3627e0abda0dd22765d8d61087476044e38e3
font_01_sfnt_off00012cf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12CF9 12060 bytes
SHA-256: 0229d786940482225b8aac0e88094fc6f028dc240d5325ae9df7d5c86ad8afff

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