Malicious PDF — malware analysis report

Static analysis result for SHA-256 d869979ab3922677…

MALICIOUS

PDF

91.0 KB Created: 2021-02-26 21:15:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 2683e492402680ed1920fc7838b2d195 SHA-1: 77a9206ae5088bce379f6256772cea24bacfab1a SHA-256: d869979ab392267731e2136d401d7f22d8a1bdaec0a6b5b4ba07e98079bedc5b
126 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to disposable domains, suggesting a link farm or phishing operation. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically flags this behavior. While no scripts were explicitly extracted, the PDF structure and embedded URIs strongly suggest an attempt to redirect users to malicious sites, likely for credential harvesting or further payload delivery.

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://baarspo.ru/123?utm_term=how+to+trade+with+price+action+master+galen+woods+pdf PDF link annotation
    • http://detonic-hypertonie.website/37088131731q1sgq.pdfIn PDF document text
    • http://bumasujofoj.getenjoyment.net/what_is_hermeneutics_in_the_bible.pdfIn PDF document text
    • https://mizavuzozubex.weebly.com/uploads/1/3/4/7/134730625/gekinu.pdfIn PDF document text
    • http://begemotiks.fun/behringer_xenyx_q802usb_premium_8-input_2-bus_mixer_with_usb_audio_interface_black8fl0m.pdfIn PDF document text
    • http://astrohelp.space/80947162240dg5h2.pdfIn PDF document text
    • https://wunovolal.weebly.com/uploads/1/3/5/3/135311751/xuzufu_wazagagevomome_kibusituvapotu_doxutafemuj.pdfIn PDF document text
    • http://smilex.club/bushwick_platform_bed_queen_blacknpf48.pdfIn PDF document text
    • http://compte-cmbretagne.best/jailbreak_4._2._1_without_computermlq48.pdfIn PDF document text
    • https://gutirupivib.weebly.com/uploads/1/3/4/7/134768574/wosukojula.pdfIn PDF document text
    • https://furedanoduribi.weebly.com/uploads/1/3/4/6/134681858/0db9d4f9.pdfIn PDF document text
    • http://reduslim-officialsite.site/sample_letter_of_intent_word_template0x1vy.pdfIn PDF document text
    • http://dafagaketa.sportsontheweb.net/20185857309.pdfIn PDF document text
    • http://mugedly.xyz/35829656502c5aq6.pdfIn PDF document text
    • http://crubr.space/4728903099400idn.pdfIn PDF document text
    • https://cdn.sqhk.co/rapavuse/cgfjhhc/78721515620.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/tupofelasujewas/microsoft_azure_devops_assessment_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/jeduzizonox/minecraft_1._14._4_apk_mod.pdfIn PDF document text
    • http://donijexufenu.onlinewebshop.net/kayla_itsines_ab_workout_cosmo.pdfIn PDF document text
    • https://s3.amazonaws.com/zopenave/dosage_calculation_practice_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/gixirojozogufux/13371826827.pdfIn PDF document text
    • http://vejegaba.atwebpages.com/how_to_reset_corsair_k95_keyboard.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_off0001297e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1297E 5624 bytes
SHA-256: b64c6a90fbae9c00191c131b2dea85797ccf7d422b2a3d4d30703966bf3ace06
font_01_sfnt_off00013c7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13C7D 9784 bytes
SHA-256: a558a2535e4803c35c29a7700f2ab65ee73b48a30f450127aee404f98dea2cd5

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