Malicious PDF — malware analysis report

Static analysis result for SHA-256 fca0f7f6ccecb3ad…

MALICIOUS

PDF

78.3 KB Created: 2021-03-26 05:51:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 7300b00ecde5a6474ec7b885ceadfe2b SHA-1: b50ecf2b8b2e468df32404e017fec4061d8d1967 SHA-256: fca0f7f6ccecb3adc22b5e7979d84fe32efd71b9329858bed77098453bf7e837
126 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as 'Pdf.Phishing.Trojan' and an ML classifier indicated a high probability of maliciousness. It contains an external URI pointing to a suspicious domain, 'resalured.ru', which is likely used for phishing or malware distribution. The document body, though heavily obfuscated, contains keywords related to 'civilization wars 1 hacked' and metadata indicating it was generated by wkhtmltopdf, suggesting it's a lure to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://resalured.ru/wix?keyword=civilization+wars+1+hacked PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4456122/normal_5ff6d0ca9b7f6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484356/normal_5fe648de6eaf4.pdfIn PDF document text
    • http://zeropium.com/project_management_professional_pmp_certification_wikia92t5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460706/normal_600184ade1c92.pdfIn PDF document text
    • https://renezotutumiw.weebly.com/uploads/1/3/5/3/135343322/motibivejet.pdfIn PDF document text
    • http://gayerkan.com/40880075939hanpv.pdfIn PDF document text
    • http://accface.in/short_trumpet_fanfare_sheet_music4bvh7.pdfIn PDF document text
    • http://tricitysikhs.com/plantronics_backbeat_go_600_over-the-ear_wireless_headphonesbnt74.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459164/normal_6011d9f31def3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501214/normal_5fe5e38503631.pdfIn PDF document text
    • http://streichpack.online/9361132976kzkrm.pdfIn PDF document text
    • http://itwomen.space/tilolewiladqrnpr.pdfIn PDF document text
    • https://rajajedoweji.weebly.com/uploads/1/3/4/3/134310645/siwuzixelekiw_doxif_fikelademezan.pdfIn PDF document text
    • http://accueilcmb.com/writing_coherent_paragraphs_worksheetfogjx.pdfIn PDF document text
    • http://llloooodddd.space/tedolagikigumagakemabimuzmt3g.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/05695aec-e091-46e9-83d7-d832c97c635a/john_deere_d140_belt_replacement.pdfIn PDF document text
    • http://wegigofasaros.rf.gd/inside_reading_3_answer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b438c733-cee5-45d1-b10d-e14201d495f6/terizumazaze.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d23e26e-965a-47ba-82fa-8c704eadc9ef/runimep.pdfIn PDF document text
    • http://weralawubuzeg.epizy.com/aplikasi_video_maker_windows_10.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31317506-462d-4134-91c1-5287eb418069/zevakixegekewejilev.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_off0000f534.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF534 5248 bytes
SHA-256: 7a095c6b279089eef2c7f0c89d39a9fc6751af9cac841c1ce4251b45c00c1993
font_01_sfnt_off00010723.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10723 10908 bytes
SHA-256: 346776875ede5713acccf358b05530977e26490599bb944433452444344b9fec

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