Malicious PDF — malware analysis report

Static analysis result for SHA-256 122975b0417f232f…

MALICIOUS

PDF

79.3 KB Created: 2021-03-15 07:15:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: d23da89fd19f170b0b222d37de565904 SHA-1: 76c3ab0651a80b77259fa629fad4eeb941b24f5d SHA-256: 122975b0417f232fc031cb935393fe114339581afdef4d879c51f5c48e39b2ef
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, a tactic often used for phishing or distributing further malware. The 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic specifically flags this behavior. While no scripts were extracted, the ML classifier and ClamAV detection strongly indicate malicious intent, likely related to a phishing campaign or a downloader.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/wix?keyword=waterford+farmers+market+ct PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4417662/normal_600e5c0321b9c.pdfIn PDF document text
    • http://pinopizo.sportsontheweb.net/how_to_connect_soundlogic_headphones.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375340/normal_6002ab85539a7.pdfIn PDF document text
    • http://pugezesiw.mygamesonline.org/antimicrobial_susceptibility_testing.pdfIn PDF document text
    • http://garanibukumom.scienceontheweb.net/kulexose.pdfIn PDF document text
    • https://sejukato.weebly.com/uploads/1/3/4/0/134018084/minidetetafa.pdfIn PDF document text
    • https://junezemojevav.weebly.com/uploads/1/3/2/7/132740237/fabuxametuzujerawepu.pdfIn PDF document text
    • http://rimiripa.mypressonline.com/o_estrangeiro_albert_camus_download.pdfIn PDF document text
    • http://nafarami.medianewsonline.com/ayuba_suleiman_diallo.pdfIn PDF document text
    • http://tepoparupomo.medianewsonline.com/10341865046.pdfIn PDF document text
    • http://rawitotizoxuk.scienceontheweb.net/oracle_sql_plsql_interview_questions_and_answers.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413851/normal_5fe5d268aaef1.pdfIn PDF document text
    • https://gifenatewa.weebly.com/uploads/1/3/4/4/134480542/dewegi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/dojonuta/android_emulator_for_ubuntu_18._04.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f304790-2045-4ea4-8e15-8c636ab90b97/median_disposable_income_per_capita_by_country.pdfIn PDF document text
    • https://s3.amazonaws.com/bezutu/coaching_agile_teams_adkins.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1932978f-18b7-4477-a279-b520c79d1ae0/java_spring_mvc_tutorial_for_beginners.pdfIn PDF document text
    • http://bexovivuvere.myartsonline.com/budismo_significados_profundos.pdfIn PDF document text
    • https://s3.amazonaws.com/domegagowevag/xunilamokanololojat.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC3A 4848 bytes
SHA-256: af37e9e61a02b5e638d1243f49cd4e7d0fe4f2b653ed722b1f5e698ae15cbdf2
font_01_sfnt_off0000fcc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCC2 10792 bytes
SHA-256: 2214fc6f91fa68b03d930fce50ba651d561b40c964510026f3dd4954ef2b430c
font_02_sfnt_off000121ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121BA 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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