Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e3ce4c96db975f2…

MALICIOUS

PDF

76.3 KB Created: 2021-03-12 15:02:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 2f00b7ea2f86ed6b8a1534ae3a872151 SHA-1: 170e46e6fce7f17dd1f1a09a63ec4c0a2ae1f12e SHA-256: 3e3ce4c96db975f23c0288dc40166c5ff6d017ad9aef4052d9d17e3f5001b1ad
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 0.9998

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://soxebez.ru/123?utm_term=social+emotional+development+milestones+pdf PDF link annotation
    • http://witikotuxigere.scienceontheweb.net/xutemerupakiguf.pdfIn PDF document text
    • https://sunakolezapomuj.weebly.com/uploads/1/3/4/6/134698053/8975668.pdfIn PDF document text
    • https://xasedomag.weebly.com/uploads/1/3/1/0/131071243/pajezokewibuju.pdfIn PDF document text
    • http://beririka.scienceontheweb.net/how_to_untie_a_necklace_knot.pdfIn PDF document text
    • https://dobivevoxopu.weebly.com/uploads/1/3/1/4/131453544/5683722.pdfIn PDF document text
    • https://xobawaxotax.weebly.com/uploads/1/3/1/4/131453143/nixixidijaxalad.pdfIn PDF document text
    • https://tonituligavu.weebly.com/uploads/1/3/4/8/134884188/7109410.pdfIn PDF document text
    • https://mukixobi.weebly.com/uploads/1/3/4/7/134732615/d9d480e15058c3.pdfIn PDF document text
    • http://desajegurake.scienceontheweb.net/95736502592.pdfIn PDF document text
    • http://ruwemipuwev.mypressonline.com/what_is_gods_name.pdfIn PDF document text
    • http://zakazuvanadoze.66ghz.com/64455738854.pdfIn PDF document text
    • http://guronid.mygamesonline.org/54924347478.pdfIn PDF document text
    • https://jowufawogutezob.weebly.com/uploads/1/3/0/9/130969037/2929267.pdfIn PDF document text
    • http://narovomesizi.medianewsonline.com/calories_in_dunkin_donuts_large_coffee_with_cream_and_sugar.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://49432a94-54bc-4d13-9d12-ea41d731e1b8.filesusr.com/ugd/a7c689_606839a72d284743ac5d3edb0422c22e.pdf?index=trueIn PDF document text
    • http://tobegunobomu.rf.gd/is_daves_bread_keto_friendly.pdfIn PDF document text
    • http://nejesezape.myartsonline.com/gifivuj.pdfIn PDF document text
    • http://lozekav.epizy.com/badminton_game_full_information.pdfIn PDF document text
    • https://d102a0f2-001f-4998-bb0a-88ac30ac05b5.filesusr.com/ugd/771ea4_043ab7fe46da4081b84e2548bc2df447.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB62 5368 bytes
SHA-256: 6c7bb931cc9a5a584cbc9ec7483403f3d5113cbbb75b33398c7064b69e97540e
font_01_sfnt_off0000fda2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDA2 11112 bytes
SHA-256: 9502c803da699b75cf91ecac2f63ffd1de34fb987ae8fc2cf85ad4c515236cfe

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