Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6189e114c3bb554…

MALICIOUS

PDF

84.9 KB Created: 2021-05-10 18:40:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 17f01bc9ca5b9c7b2571c12683b8d8fe SHA-1: c638c6577add1c66abf3ff074ca3a8f438dd365b SHA-256: e6189e114c3bb554c1205d4cc1abfc0cd7d7bbd1f4c7744c9bce437b8bb6e938
244 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical finding for linking to known malicious redirector infrastructure. The document contains a large number of external links, many hosted on disposable domains, suggesting a link farm or SEO manipulation tactic. While no scripts were extracted, the presence of numerous malicious URLs indicates an attempt to redirect users to potentially harmful content, likely as part of a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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://dafemum.ru/strik?utm_term=the+four+loves+book+review In PDF document text
    • http://fumizudo.sportsontheweb.net/past_perfect_active_and_passive_exercises.pdfIn PDF document text
    • http://nafarami.medianewsonline.com/98337457230.pdfIn PDF document text
    • http://linodogeb.scienceontheweb.net/kotezavinerizefufobukanav.pdfIn PDF document text
    • https://pikulevixabokof.weebly.com/uploads/1/3/1/6/131606248/96df490e7c5ef.pdfIn PDF document text
    • https://tufizesux.weebly.com/uploads/1/3/4/5/134596030/zibosekuzed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413118/normal_5fe7f594d32af.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446034/normal_602ea6411ae03.pdfIn PDF document text
    • https://komojagalon.weebly.com/uploads/1/3/4/8/134885500/dc9bbf1a6d9c8.pdfIn PDF document text
    • https://viduxetejogat.weebly.com/uploads/1/3/4/6/134600114/d804719bb4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://pasifowon.atwebpages.com/kijavorugoguwezaresivene.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e6b8410-ffd1-457b-9583-7c1b73c26d79/pagan_christianity_viola.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ce82993-b8a3-43f0-9466-1bf1987d3ecf/mushoku_tensei_rudeus_parents.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ae5e23e-6391-4e1f-b1a9-23d2adcacbac/97714605267.pdfIn PDF document text
    • https://s3.amazonaws.com/jolituzoji/97393112165.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/573adbea-801d-41b4-91d4-a90d82a0dd2e/how_to_change_time_on_fossil_watch.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/21154b6c-cebd-4ab9-bcbe-da804be2fe0e/82189741938.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd13a60e-984c-46c8-ba09-e5382aab3daa/genius_loci_towards_a_phenomenology_of_architecture_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/buwosevax/26373005816.pdfIn PDF document text
    • https://s3.amazonaws.com/dikobepibelun/resumen_el_vendedor_mas_grande_del_mundo_og_mandino.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58f6d42c-7edf-4053-8377-7b47ced477c8/tuvipanegikixake.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010143.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10143 4648 bytes
SHA-256: c5e33d49638571685b5917b56420e2ecc519590756215952e5175c34a6e8cda0
font_01_sfnt_off00011137.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11137 11112 bytes
SHA-256: cbd5894f3708a672fbedcefa417d44adc3344ff2011a5721c5d3794fa86fb7fa
font_02_sfnt_off00013702.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13702 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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