Malicious PDF — malware analysis report

Static analysis result for SHA-256 004cbc77601079a0…

MALICIOUS

PDF

76.1 KB Created: 2021-05-07 14:16:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 6a031aa7ecbd618cc3febb6baef2c91d SHA-1: 704020a527f685c4bda9b5c10e0d4f0b47b5fbbb SHA-256: 004cbc77601079a077be9601d0bdfd8415dc5de84d3da4fc2353e373cfbdab5b
126 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, many of which point to disposable domains and are flagged as link farms. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery. The document body, though heavily obfuscated, contains text related to 'ancient egypt' and 'wkhtmltopdf', suggesting a lure to disguise the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://seumenha.ru/strik?utm_term=the+complete+gods+and+goddesses+of+ancient+egypt PDF link annotation
    • http://siwivelijutore.medianewsonline.com/evan_moor_spelling_grade_2.pdfIn PDF document text
    • http://nafewid.sportsontheweb.net/how_to_add_text_to_a_application_form.pdfIn PDF document text
    • http://tunizunifegitof.66ghz.com/correcting_sentence_fragments_worksheet_answers.pdfIn PDF document text
    • http://nilutafejo.mypressonline.com/46175912724.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393489/normal_60663c4b2b6b3.pdfIn PDF document text
    • http://wwwbcpzonasegura-viabcp.com/382197551300930v.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413473/normal_60411d96b1a00.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410004/normal_60120968ac428.pdfIn PDF document text
    • http://jologedeb.getenjoyment.net/11187385257.pdfIn PDF document text
    • http://tinubawolu.mywebcommunity.org/lesanakukopusifuzav.pdfIn PDF document text
    • http://uk-delfin.ru/how_to_teach_life_skills_to_young_adultsuo42g.pdfIn PDF document text
    • http://hot-money.fun/92775023204kyxlv.pdfIn PDF document text
    • http://girlsbeach.space/dupugosexexevwrb6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sabukizazuse.epizy.com/zukunebozopa.pdfIn PDF document text
    • http://kivarutumo.myartsonline.com/22671977537.pdfIn PDF document text
    • http://jagixav.rf.gd/29169765011.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/560249b4-dd27-4ad6-b294-e40177b6a211/best_48_laws_of_power.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c41af7d6-bfa1-49b5-b30c-41af54148777/8885396494.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/068337bd-b1cc-4c15-9e60-853c99fc5d61/nevexuritivurudujira.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d11bb605-6048-4355-aa56-6cdccc4434f8/12687523469.pdfIn PDF document text
    • http://lojabupabavize.onlinewebshop.net/what_is_the_name_of_the_next_keeper_of_the_lost_cities_book.pdfIn PDF document text
    • http://kavejanunar.epizy.com/voxepamumojaka.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_off0000ec19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC19 5524 bytes
SHA-256: c00d49974543c6e23541dd8dce76e25e58f5bcdbd687f556d06c686069f745b4
font_01_sfnt_off0000fecd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFECD 10364 bytes
SHA-256: 4364ccad818f247aba2552af7fb0237b8e2a195a95541a3be09661439574163b

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