Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7c06d145bdad30f…

MALICIOUS

PDF

72.8 KB Created: 2021-03-17 04:29:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c9bd63c38035f139b4a28f83c17e9fe4 SHA-1: 15925b7613fba65bc34a8d0d030bff34c04efb3f SHA-256: e7c06d145bdad30fcf55913c7005a9dd3534efcd8ad10e856a31f62d5092b35f
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

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 0.9997

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://kuzutuzo.ru/wix?keyword=meditation+music+spirit+guide PDF link annotation
    • https://cdn.sqhk.co/lipisowonili/g7IdwwU/xumematetidixuramasez.pdfIn PDF document text
    • https://tilawifi.weebly.com/uploads/1/3/4/4/134480999/keziliwi.pdfIn PDF document text
    • https://dijuwinepogiw.weebly.com/uploads/1/3/0/7/130738679/fadaxaxefegonokivug.pdfIn PDF document text
    • http://verifedform.com/bandish_pk_song5ihsp.pdfIn PDF document text
    • http://pefiworawodud.mypressonline.com/rumi_a_new_translation_of_selected_poems.pdfIn PDF document text
    • https://cdn.sqhk.co/mogidamiko/cihgjig/99011162295.pdfIn PDF document text
    • http://letxxnx.org/oxford_picture_dictionary_russiansm9xw.pdfIn PDF document text
    • https://cdn.sqhk.co/menodotitit/idhb3ji/84073264832.pdfIn PDF document text
    • http://dimax.website/balu_mahi_full_movie_3gpy6rj5.pdfIn PDF document text
    • http://vixemifojetinag.sportsontheweb.net/ragonuxudalerudalipovovir.pdfIn PDF document text
    • http://nebo-baikala.ru/arabic_fonts_free_for_windows_74dpzi.pdfIn PDF document text
    • https://zepifuvuxetota.weebly.com/uploads/1/3/6/0/136095774/kiluwul.pdfIn PDF document text
    • https://cdn.sqhk.co/xavaxonad/aT4vQ5V/2010_world_cup_penalty_shootout_game_y8.pdfIn PDF document text
    • http://reabook.online/403131346019nyhc.pdfIn PDF document text
    • https://cdn.sqhk.co/bupewazadufa/bhhRgdr/55885023934.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zefixufedinokas.epizy.com/99289546588.pdfIn PDF document text
    • https://s3.amazonaws.com/tawovojo/the_other_side_of_the_door_movie_watch_online_free.pdfIn PDF document text
    • http://magonusu.epizy.com/dj_ganesh_bhajan_song.pdfIn PDF document text
    • https://s3.amazonaws.com/tazibabebamep/what_is_the_purpose_of_grounded_theory.pdfIn PDF document text
    • https://s3.amazonaws.com/xilasisefi/modadodav.pdfIn PDF document text
    • http://sevaguv.rf.gd/tikufusexevuvadi.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_off0000df21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF21 5368 bytes
SHA-256: a842e63809845fedcfc4c9b7bf0e0534c855c9e643b655e85d51463f178643b7
font_01_sfnt_off0000f156.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF156 10740 bytes
SHA-256: 214bac1c12ed3d9ac2c5becd24c25a742f030664687346474211f047d8d428f3

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