Malicious PDF — malware analysis report

Static analysis result for SHA-256 675a1984c5ccc831…

MALICIOUS

PDF

81.0 KB Created: 2021-06-15 11:01:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: c90bcae876d83e29048fa547e6249582 SHA-1: cfb187fb40750d94a3dbab0ef4084cbe62830beb SHA-256: 675a1984c5ccc831f7671d119911b4a98f6bdec240a09a53c21158d436482136
126 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, with one prominent URL pointing to a site offering 'Dr strange full movie 123movies', suggesting a lure to entice users to click. The PDF structure and embedded links indicate it functions as a link farm designed to redirect users to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://philabc.ru/pbw?utm_term=dr+strange+full+movie+123movies PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4470982/normal_5ff65b5e1fe24.pdfIn PDF document text
    • https://womepibenim.weebly.com/uploads/1/3/4/0/134040947/pajiberow_vatefakodekaz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366995/normal_604a6b29636e5.pdfIn PDF document text
    • https://giriwegulajujup.weebly.com/uploads/1/3/4/3/134320738/rutafukok.pdfIn PDF document text
    • https://dumerozum.weebly.com/uploads/1/3/4/6/134611270/05e9b41.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378383/normal_6066bb84be34d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445118/normal_604dadbe8f38b.pdfIn PDF document text
    • https://wazawuxara.weebly.com/uploads/1/3/4/7/134762715/5714023.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lebunurivugu.pbworks.com/f/lesson_9.3_practice_b_geometry_answers.pdfIn PDF document text
    • http://kesowununak.pbworks.com/w/file/fetch/144819441/guias_nintendo_new_super_mario_bros_wii.pdfIn PDF document text
    • http://kumarifili.pbworks.com/f/92362112558.pdfIn PDF document text
    • http://katafuzum.pbworks.com/f/19119095294.pdfIn PDF document text
    • http://tugovozow.pbworks.com/w/file/fetch/145096722/ankhiyon_ke_jharokhon_se_mp3_ringtone_download.pdfIn PDF document text
    • http://pigedigasexu.pbworks.com/w/file/fetch/144498021/2538754407.pdfIn PDF document text
    • http://nitezug.pbworks.com/f/income_tax_calculator_for_salaried_employees_ay_2019-20_in_excel_sheet.pdfIn PDF document text
    • http://sejiliki.pbworks.com/f/47527141448.pdfIn PDF document text
    • http://zolunegoli.pbworks.com/w/file/fetch/145128978/english_irregular_verbs_list_with_german_translation.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93f41c49-29c8-4bab-97f8-8538fcc12f43/toro_1800_power_curve_extension_cord.pdfIn PDF document text
    • http://xizegopago.pbworks.com/f/the_power_of_body_language_joe_navarro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ed2961b-36ec-4ffc-bba0-9f35def994d0/90526447175.pdfIn PDF document text
    • http://rutarotovez.pbworks.com/w/file/fetch/145168992/differential_calculus_worksheet_with_answers.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_off0000fa90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA90 5492 bytes
SHA-256: 04291de337d0560b24df0e31c70c66df3bf8a46a746246d6fd20a72f99fb4dcd
font_01_sfnt_off00010d44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D44 11656 bytes
SHA-256: 61f70bd88d8a03bae27bb1197d6f8b03fdfe67a887e12d0381cfdb5aa011383f

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