Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3337daf26015e29…

MALICIOUS

PDF

72.5 KB Created: 2021-04-03 14:46:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: a26e3ffe318b0b376f8df3b5bb4c891e SHA-1: 49cf00e9b25ee7acf23166ee230faa7b988407c7 SHA-256: f3337daf26015e29f48022460fe0672ab837b8ac829fb341fc4a24f0b7f69594
186 Risk Score

Malware Insights

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

This PDF document was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to external URLs, one of which is a known malicious domain. The document's content appears to be a lure, disguised as furniture kits, to drive traffic to these potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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
  • 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.
  • 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/strik?utm_term=1%252F12+scale+dolls+house+furniture+kits PDF link annotation
    • https://cdn.sqhk.co/gowexenopa/Bijcmgv/sufowadafigutarezedojuxo.pdfIn PDF document text
    • http://nagajavanof.22web.org/android_studio_modal_dialog.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384145/normal_606800d69bbc9.pdfIn PDF document text
    • http://vofarufumuwe.iblogger.org/79060441283.pdfIn PDF document text
    • https://cdn.sqhk.co/wusoxopejezo/aihhdif/whatsapp_de_colores_actualizado_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402721/normal_600d5188089f4.pdfIn PDF document text
    • https://cdn.sqhk.co/jawosuzexe/yfqggb8/lirojelatimoxodojujime.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://8b5ac0f3-2bc4-49a6-9a99-2541af31b215.filesusr.com/ugd/f2ef67_9c7620fd46404c74beda2c53328f1f2b.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8fe7bf9c-ef71-429f-b818-a27867c9684f/2020_ferrari_812_superfast_black.pdfIn PDF document text
    • https://76ed6b59-b034-43ac-b949-e1c08f76e3cb.filesusr.com/ugd/ee6100_e44b45da1a5546e1913f7a10dc57cc6a.pdf?index=trueIn PDF document text
    • https://ba10d46a-d7c1-43af-8542-f1a50f31aa8a.filesusr.com/ugd/4dded2_89d845e3ae2241958045ef6b8340bbed.pdf?index=trueIn PDF document text
    • http://jorafok.epizy.com/62956223332.pdfIn PDF document text
    • https://16012499-1299-48b0-8cdd-5f23a7749958.filesusr.com/ugd/fafc38_8c3d1f94caaa4c728cc21b135325368d.pdf?index=trueIn PDF document text
    • https://535a9070-e28a-464b-adc5-c02ad08be00b.filesusr.com/ugd/9df9d6_91f592df545f47f7b1e3b7b34ba4907b.pdf?index=trueIn PDF document text
    • https://cd753cf5-d90a-4073-9c55-931a76e81761.filesusr.com/ugd/8826df_674d8dbb1d8a407ebe835086c35f83b3.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/65b1681b-0fa8-442e-9af6-0f599b4bbcff/lozitaxeraruxidiwil.pdfIn PDF document text
    • http://tisigivikevutik.rf.gd/99899812857.pdfIn PDF document text
    • http://lukoleni.epizy.com/google_chrome_software_reporter_tool_gpo.pdfIn PDF document text
    • https://a39ac558-8fe8-437d-9e10-dc9402d6cb9c.filesusr.com/ugd/1ebe14_160f32790e9d42d5b9f0e69dcdb42598.pdf?index=trueIn PDF document text
    • https://76a725e8-946c-4ae9-9249-cda469d35108.filesusr.com/ugd/83c8cc_0fdd7b978d694e65842f673c3d6a6f6e.pdf?index=trueIn PDF document text
    • https://aa5f33e9-793b-4807-a257-9eac84d314d0.filesusr.com/ugd/aa57b2_d6d083fe9d9b4dc68a25cfffeda4d679.pdf?index=trueIn PDF document text
    • https://569e8712-2873-4b93-a654-ea71b6b809e3.filesusr.com/ugd/345929_43aebd0ae010410c9003f7a17ed19338.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d183129-82d4-424a-bd01-c910ad9676b7/vebesage.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_off0000dec8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEC8 5296 bytes
SHA-256: 1b569466a9d7fad157f9f015a8ca9a0ba454298ff19572917b66269f1f648a97
font_01_sfnt_off0000f0d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0D0 10368 bytes
SHA-256: 958e95556343727281809dba7cb073b95809884dccc2a634a75f9bc15daae00f

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