Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebe1a5fcd0fce319…

MALICIOUS

PDF

77.7 KB Created: 2021-04-29 15:32:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 946c06218fbac9e0f10d49d9ba5bf4e5 SHA-1: 95bef1403c1ff71e0474b23f8ecb0138c679f6f6 SHA-256: ebe1a5fcd0fce31936364aabd3aad636b8dd0dfecd9efea0aef58a7acb7122a6
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://ponafet.ru/strik?utm_term=how+to+write+a+letter+to+the+utah+board+of+pardons+and+parole PDF link annotation
    • https://cdn.sqhk.co/sunomedude/Hhf3jcw/64003981798.pdfIn PDF document text
    • http://meine-gebuhrenfrei.com/41908924034w6z1t.pdfIn PDF document text
    • http://bettermoneytips.com/fuvinekoludolifaxotisumiio9vd.pdfIn PDF document text
    • https://cdn.sqhk.co/jorevagu/jb8oc1j/spiderman_3_ppsspp_high_compressed.pdfIn PDF document text
    • https://cdn.sqhk.co/tofepojafuz/fMohidX/aladdin_movie_2019_song_pagalworld.pdfIn PDF document text
    • http://avto-document.site/uv-5r_plus_rangeo4ajc.pdfIn PDF document text
    • http://penafur.scienceontheweb.net/3688681638.pdfIn PDF document text
    • https://cdn.sqhk.co/lojadisexudo/chdrif8/ladybug_colouring_pages_printable.pdfIn PDF document text
    • https://cdn.sqhk.co/sexuzoropa/idjdcHd/prizefighters_2._7._6_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/vibejimipu/gghgjeG/florida_state_driving_test_study_guide.pdfIn PDF document text
    • http://dogalijun.scienceontheweb.net/cuantos_mm_equivale_un_km.pdfIn PDF document text
    • https://cdn.sqhk.co/jenireni/UohiMjc/nivumaboxefemavusuguneku.pdfIn PDF document text
    • https://cdn.sqhk.co/wakewafo/a8gduUm/checklist_approach_evaluation.pdfIn PDF document text
    • https://cdn.sqhk.co/vavewiminiv/cieaihd/graco_linedriver_hd_parts.pdfIn PDF document text
    • http://pazefezos.mywebcommunity.org/29079426593.pdfIn PDF document text
    • https://cdn.sqhk.co/wobuwozavenu/XxvtjcD/game_hack_speed_hack_tool.pdfIn PDF document text
    • http://lnstagramsecurity.net/90694363775fm6d5.pdfIn PDF document text
    • http://triple-doska3.club/62069654366n4z52.pdfIn PDF document text
    • https://cdn.sqhk.co/goworonol/haz15he/newidegidekoze.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vawinujofupin.myartsonline.com/88222890076.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_off0000f235.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF235 5324 bytes
SHA-256: 72530d6aa07d0a1ecf105285fa75a12386039332e89b1a70c388b64f3ccbc9ff
font_01_sfnt_off0001044d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1044D 10892 bytes
SHA-256: b881ecc39b8ff8e06bc300284164e6a36ed6b9ef10e453541a08854eb798e992

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