Malicious PDF — malware analysis report

Static analysis result for SHA-256 460ff3b6022e30c9…

MALICIOUS

PDF

96.6 KB Created: 2021-03-23 19:23:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: b3a7e420e4497b464d309b7905363e38 SHA-1: 9e6308d906c8613947060c346f6efd4983fb25f8 SHA-256: 460ff3b6022e30c989dc4863e611efca247ac3dfb76343ad2dae01ff443854b3
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 and link farms, a common tactic for phishing or distributing further malware. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to potentially harmful 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://jacksth.ru/wix?keyword=phrygian+half+cadence PDF link annotation
    • http://fogugevup.22web.org/what_are_the_4_main_types_of_academic_writing.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471960/normal_5fcb4103bfe00.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372707/normal_60242970c8f04.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390663/normal_5fe6c37835398.pdfIn PDF document text
    • http://suporefebakibur.mygamesonline.org/hp_laserjet_1012_not_printing_windows_10.pdfIn PDF document text
    • https://zumaninerotuz.weebly.com/uploads/1/3/1/6/131637595/kojabubajakufed-jisofokako.pdfIn PDF document text
    • http://lapiwudoxavov.scienceontheweb.net/analise_combinatoria_arranjo_e_combinao.pdfIn PDF document text
    • http://jevafurevozu.mygamesonline.org/mejojatosi.pdfIn PDF document text
    • http://dosaxixapaxa.medianewsonline.com/87582688941.pdfIn PDF document text
    • http://vejuwetuk.mypressonline.com/7101716080.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413454/normal_60073031b79b4.pdfIn PDF document text
    • http://roxedizusugu.mywebcommunity.org/8152702180.pdfIn PDF document text
    • https://gevamimukeruku.weebly.com/uploads/1/3/4/6/134656740/87ae2a0b1e4d42.pdfIn PDF document text
    • http://ruluzuzadol.mypressonline.com/13965795394.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nejarisiwudu.atwebpages.com/is_dark_desire_a_good_series.pdfIn PDF document text
    • http://netomadutimafe.onlinewebshop.net/jafoxelidel.pdfIn PDF document text
    • http://perexuwofogefo.onlinewebshop.net/85994111409.pdfIn PDF document text
    • http://jerimopujokanar.epizy.com/bala_bala_full_song.pdfIn PDF document text
    • http://kujafugakare.epizy.com/tubisidifav.pdfIn PDF document text
    • http://vasizofotobobem.rf.gd/19759817794.pdfIn PDF document text
    • http://majezomisi.myartsonline.com/73740791654.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012532.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12532 5208 bytes
SHA-256: 7c20497c816dc8e8f66f846e410ac0390f69d8c7cc11fdcafb7d34180a795908
font_01_sfnt_off000136f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136F0 12228 bytes
SHA-256: 5d52b30dc45926d9f4c14729f46c5da7dd0cbe596b6f40e96786325fbfb029cb
font_02_sfnt_off00015faa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15FAA 16200 bytes
SHA-256: eb8728b209634f5cf0dcbccd801eedbe8bc3f4553844c4955f61b377f7da468a

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