Malicious PDF — malware analysis report

Static analysis result for SHA-256 01c0811e48416825…

MALICIOUS

PDF

78.1 KB Created: 2021-03-31 20:44:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 0d869cb48b1703933494c6ef24d9c240 SHA-1: 1080380a47fae8d6c4e815aa9e7299ced7dc6ae5 SHA-256: 01c0811e48416825a425dbb0a011d77ae8240b9d79a5b8cc6feb2a9730dfa9a7
126 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, many pointing to disposable domains, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were extracted, the PDF structure and embedded links are characteristic of phishing or malware distribution campaigns.

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://jumiwimov.ru/award?keyword=effective+biblical+counseling+larry+crabb+pdf PDF link annotation
    • http://cybety.xyz/new_nora_roberts_books_2020eh3jq.pdfIn PDF document text
    • http://vikiwamatibude.22web.org/bengali_movie_song.pdfIn PDF document text
    • https://tefegori.weebly.com/uploads/1/3/1/6/131637168/1cb86.pdfIn PDF document text
    • https://tovejuzu.weebly.com/uploads/1/3/5/3/135398771/zubifidepu.pdfIn PDF document text
    • http://mebel-albero.ru/zombie_squad_game_download_apkpure3myoh.pdfIn PDF document text
    • http://wersita.fun/nukutuwupudorasebobamj92f.pdfIn PDF document text
    • http://otomail.business/firuxowokiwemadobtl3ae.pdfIn PDF document text
    • http://copyright-notice-ig.com/fuderupodbdff.pdfIn PDF document text
    • https://kerumeso.weebly.com/uploads/1/3/4/6/134641164/sopabizetafuged.pdfIn PDF document text
    • http://korsabarca.com/management_accounting_vs_financial_accounting1rxo6.pdfIn PDF document text
    • http://icily.xyz/craftsman_yt_3000_attachmentsp6zub.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fudowoxalukiki.rf.gd/tewolopubefesid.pdfIn PDF document text
    • http://peburameg.epizy.com/inequalities_examples_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/nitizobuv/counter_strike_source_no_steam_free.pdfIn PDF document text
    • https://s3.amazonaws.com/luborinizu/xusawovaw.pdfIn PDF document text
    • http://wokixewo.epizy.com/54257121041.pdfIn PDF document text
    • http://pogapebod.rf.gd/bronx_botanical_garden_map.pdfIn PDF document text
    • https://s3.amazonaws.com/zufojadibi/76845275485.pdfIn PDF document text
    • http://wijexir.epizy.com/are_penny_stocks_listed.pdfIn PDF document text
    • https://s3.amazonaws.com/gurupixabogivaz/4746978829.pdfIn PDF document text
    • https://s3.amazonaws.com/sutawowirosuvuv/material_safety_data_sheet_ethanol_95.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_off0000f1d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1D4 5584 bytes
SHA-256: 68f84fc06e86fb834c21091c03bf1c88d931f59eca1aa186ff5de5546cefa28c
font_01_sfnt_off000104ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104EF 11088 bytes
SHA-256: f71af4d401c2f621fb7858717392bc202c7af7365c6aff5e8f06f64434c72495

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