Malicious PDF — malware analysis report

Static analysis result for SHA-256 07f33722319f4e43…

MALICIOUS

PDF

80.3 KB Created: 2021-06-09 06:49:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 5cc2ef890483419c9db761f224e6c432 SHA-1: 28701388a041f3e9f706165a2324bba3193883f2 SHA-256: 07f33722319f4e43892f3ada2eac7906ad13e2aeed589df31e6db35d88d5ad78
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to disposable domains, and a specific lure related to a "traffic rider hack". The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The presence of embedded URLs suggests an attempt to redirect the user to malicious content.

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://irlanc.ru/pbw?utm_term=traffic+rider+hack+ios+2020 PDF link annotation
    • https://static.s123-cdn-static-d.com/uploads/4477408/normal_60b27eb016812.pdfIn PDF document text
    • https://roromitekavu.weebly.com/uploads/1/3/4/5/134528712/d02206aef7cf.pdfIn PDF document text
    • https://soremezu.weebly.com/uploads/1/3/1/0/131070226/7226710.pdfIn PDF document text
    • https://vamemaxodoj.weebly.com/uploads/1/3/1/4/131437173/8431331.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414682/normal_603d8801f0d19.pdfIn PDF document text
    • https://baresifesej.weebly.com/uploads/1/3/4/1/134131831/116cbb485c7ef12.pdfIn PDF document text
    • https://jumejavirufefe.weebly.com/uploads/1/3/4/7/134765112/wonuvazuladajoze.pdfIn PDF document text
    • https://paseruvuweduzuw.weebly.com/uploads/1/3/1/4/131437476/5371318.pdfIn PDF document text
    • https://dalupapixoriwu.weebly.com/uploads/1/3/1/4/131438121/wusipov.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://uploads.strikinglycdn.com/files/4de266c0-12a8-4410-8c8c-59e3b682e4ee/43925926488.pdfIn PDF document text
    • http://gonumutat.pbworks.com/w/file/fetch/144676521/apush_study_guide_2021.pdfIn PDF document text
    • http://furalagaposu.pbworks.com/w/file/fetch/144711744/57551526626.pdfIn PDF document text
    • http://popuwepux.pbworks.com/f/61409741536.pdfIn PDF document text
    • http://wufamazajo.pbworks.com/w/file/fetch/144465105/67713763677.pdfIn PDF document text
    • http://japakekuwita.pbworks.com/f/the_modern_frankenstein.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39eff4fc-201e-4c67-8327-f925b03cdba5/5666896389.pdfIn PDF document text
    • http://tatetobegu.pbworks.com/f/gta_sa_download_highly_compressed_android.pdfIn PDF document text
    • http://sinorodolu.pbworks.com/f/chudi_jo_khanki_haathon_mein_dj_mp3_song_free_download.pdfIn PDF document text
    • http://tozuxexap.pbworks.com/f/intermediate_accounting_kieso_chapter_16_ppt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d42aa389-844d-443f-b354-37a0d823da31/9888766866.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_off0000ee15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE15 4968 bytes
SHA-256: a39869bceba8309ab4316da1427a9db808c1b18b83ac27478fc3b78bdece84a6
font_01_sfnt_off0000fefb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEFB 11284 bytes
SHA-256: 4e6729563769b2b6887d22bfbfd8e0c513cb5830e70d2b405b81d5eb95368278
font_02_sfnt_off000125c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125C1 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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