Malicious PDF — malware analysis report

Static analysis result for SHA-256 da6337ae3262688c…

MALICIOUS

PDF

80.3 KB Created: 2021-03-30 01:39:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 8ec9d1ffbdf2bf9428b1fb5a7c608e6d SHA-1: dec27d1bb09e3a689b5b273f1cb0d65abb62330d SHA-256: da6337ae3262688c7c76fb8353dc8d9df6876934614fa1f770838db36e83370b
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ponafet.ru/wix?keyword=kemetic+knowledge+of+self+pdf PDF link annotation
    • http://fiwadewemizoti.iblogger.org/dezetazikedakuze.pdfIn PDF document text
    • http://rowajenuw.iblogger.org/anemia_in_pregnancy.pdfIn PDF document text
    • http://kovezemunoropu.iblogger.org/51562316092.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9966f03-6ea1-46b9-b88b-f8aeed78f09b/zinusaledidotepawafir.pdfIn PDF document text
    • http://wazisosixi.epizy.com/xupoju.pdfIn PDF document text
    • https://s3.amazonaws.com/bisiku/lasasakowarilaxebivupo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/259ceb3e-bdf8-462e-953b-21e4b593fc64/from_caligari_to_hitler.pdfIn PDF document text
    • https://s3.amazonaws.com/negonanopix/gadizinus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0060759a-3d0f-4b6c-8d4a-7a9548873d64/elements_of_music_quiz.pdfIn PDF document text
    • https://s3.amazonaws.com/lanaladu/police_crash_report_online_wa.pdfIn PDF document text
    • http://wikugojumoxo.epizy.com/free_version_of_microsoft_office.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82ad2181-2104-4186-9afa-9037ac86ca37/apa_ethical_code_of_conduct_for_psychologists.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxawetawupo/how_to_play_pai_gow_tiles.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/213192ca-1931-4393-a1ac-7b7f748bb22a/okimat_2_remote_programming.pdfIn PDF document text
    • http://dirujuwut.epizy.com/52852270891.pdfIn PDF document text
    • http://kunesapog.epizy.com/oxford_english_to_bengali_dictionary_download.pdfIn PDF document text
    • https://s3.amazonaws.com/timeziso/xixabeloto.pdfIn PDF document text
    • https://5e20aa6b-77ef-4f11-9344-5454fb7c649c.filesusr.com/ugd/fb3aa9_6fde147becad4ac7b8d9222f401f90e5.pdf?index=trueIn PDF document text
    • http://peregal.epizy.com/cbse_class_12_physics_syllabus_2020_19.pdfIn PDF document text
    • https://s3.amazonaws.com/rumezo/karni_padi_badmashi_video.pdfIn PDF document text
    • http://tumoxotakim.epizy.com/xopeleberivitasajavuvuvir.pdfIn PDF document text
    • https://12c9c681-cafc-4f88-93da-cb6f471fd49a.filesusr.com/ugd/f09a9d_c22c6f1897bf46c082171e8d72448f45.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/luxaduzimase/ranger_rci_2950_cd.pdfIn PDF document text
    • https://s3.amazonaws.com/gowupuzokowuxes/daily_weekly_monthly_cleaning_schedule_template.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fbf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBF6 5296 bytes
SHA-256: acd3d9dcaf3b2ffcb65341d8e3444dc5d24c42dbafd93255c396c81cbed15bc0
font_01_sfnt_off00010e10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E10 11036 bytes
SHA-256: 6c80305f334441b91f35190d04bd742b1729091bb4c1809bfde93d231b1d2589

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