Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e4fe0460946c135…

MALICIOUS

PDF

77.9 KB Created: 2021-03-08 16:31:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: d7d04e26ab542c2cc432dde9349388ee SHA-1: fc7c2204166f317ed15bc69811440b46bafcc760 SHA-256: 2e4fe0460946c1356d6cf2ded8d26dcf5517baf93996eb1938502fbad7d14615
166 Risk Score

Malware Insights

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

The PDF contains suspicious links, including one to 'ig-supportcenter.xyz', which is flagged as a lure for malicious activity. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to potentially harmful content, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • 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://baarspo.ru/wb?keyword=facebook%20device%20code%20not%20working PDF link annotation
    • http://madamzero.com/linksys_wireless-n_range_extender_re1000_setuplya31.pdfIn PDF document text
    • http://megalit-korolev.ru/computer_hardware_engineer_salary_in_florida6y634.pdfIn PDF document text
    • http://mowefopovog.mywebcommunity.org/relation_between_electricity_and_magnetism_called.pdfIn PDF document text
    • http://dizititakozazi.mywebcommunity.org/fusionner_fichiers_sur_mac.pdfIn PDF document text
    • http://okclub.org/luvuvosefizubotedonopi97nzz.pdfIn PDF document text
    • http://prolac.ru/game_campus_student_life_simulation2fdnf.pdfIn PDF document text
    • http://newyearshop.site/xactimate_roofing_codes9ozi2.pdfIn PDF document text
    • http://yozi.store/937977534349jkc4.pdfIn PDF document text
    • http://ig-supportcenter.xyz/cctv_daily_monitoring_reportnagkv.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/b0ded71e-a569-449d-901a-0ad4bcd7c057/irregular_verbs_list_in_english.pdfIn PDF document text
    • https://s3.amazonaws.com/gotijejaj/free_blumberg_forms_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39817490-f8a0-450a-8368-56e98fc978da/can_a_jeep_grand_cherokee_pull_a_camper.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0866b85-4c95-47f1-8c75-ce6ceea686ad/wivomejisokebaremejej.pdfIn PDF document text
    • http://medexode.atwebpages.com/how_to_read_financials.pdfIn PDF document text
    • http://pevipitoz.atwebpages.com/situvatawex.pdfIn PDF document text
    • https://43fe4710-460a-4ad3-90dc-2dd795c51528.filesusr.com/ugd/a32c20_6ca874d66e2c4ac0acdb8286d5d4443b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/lunojol/ruxijitotewetidenu.pdfIn PDF document text
    • https://6c8ebe11-725c-420b-823a-68bc39d02ad2.filesusr.com/ugd/3e87bf_58b34cbba96a4b169036034e69442c2b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/figugipopar/foodsaver_v3825_not_sealing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c640d845-881e-48a3-a308-584444d2c19a/26241790109.pdfIn PDF document text
    • https://95043331-d9de-4498-ad98-35b8ac3ee23f.filesusr.com/ugd/5740b2_d34c8e11d5be4d85bb1e53d9b69e4e0f.pdf?index=trueIn 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_off0000f2f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2F8 5208 bytes
SHA-256: 1ff3254ad5b6b961f455e1b3246bbd4ce991b0b7da85ca1749947bc28eba6099
font_01_sfnt_off000104d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104D5 11056 bytes
SHA-256: 439ef26ed6ec5413d35fd09a9a59302f7233d76419e6b595dc567cd26975e4b5

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