Malicious PDF — malware analysis report

Static analysis result for SHA-256 61ed3d824e709ca4…

MALICIOUS

PDF

79.6 KB Created: 2021-04-05 18:56:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 9eb3926f8813e8fb95e9d42ef7516828 SHA-1: 5e2ec272fff07b8c1c91d4ae35faa98edf475f26 SHA-256: 61ed3d824e709ca40e9c4698471578e08c99e515c6d440e8d19b052c2b2bb614
156 Risk Score

Malware Insights

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

This PDF document contains numerous external links, a common tactic for SEO spam or phishing campaigns. The heuristic 'PDF_SEO_LINK_FARM' and the ClamAV detection 'Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0' strongly indicate malicious intent. The primary malicious URL identified is https://soxebez.ru/123?utm_term=odia+song+album+new, which is likely used to redirect users to further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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=odia+song+album+new PDF link annotation
    • https://bakadowo.weebly.com/uploads/1/3/1/3/131380427/5100856.pdfIn PDF document text
    • https://turomanusogagi.weebly.com/uploads/1/3/1/4/131453559/kulisowagusuvov.pdfIn PDF document text
    • https://bemezonef.weebly.com/uploads/1/3/5/3/135389856/eba0640e13620e.pdfIn PDF document text
    • https://ligegumipiwefu.weebly.com/uploads/1/3/3/9/133999845/sujebebizepa_pudavidaxidan_bizugutuzumafa.pdfIn PDF document text
    • https://lumikefobebodas.weebly.com/uploads/1/3/4/3/134324067/zuwowufonu.pdfIn PDF document text
    • https://lijepaxo.weebly.com/uploads/1/3/5/3/135324298/kivobo.pdfIn PDF document text
    • https://zonilalafujagep.weebly.com/uploads/1/3/4/7/134731182/gilivobaxesen.pdfIn PDF document text
    • https://suzoniku.weebly.com/uploads/1/3/4/4/134456843/5773357.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://a54de82d-0003-4787-801b-d7ee719c780a.filesusr.com/ugd/8d57bd_e2b8665e6315463f8efa8c1223131049.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sojaxub/command_and_conquer_generals_2_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/wobuzisibal/wagner_flexio_590_lowes.pdfIn PDF document text
    • https://034618a9-9b39-4f41-ad18-95bca1d1c80b.filesusr.com/ugd/48d9a1_183c854df2de4e32a44ee83c55b3778b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xeruxaxer/how_to_use_shark_professional_steam_pocket_mop.pdfIn PDF document text
    • https://s3.amazonaws.com/pogolo/93230706776.pdfIn PDF document text
    • https://s3.amazonaws.com/bezorito/asymmetric_information_in_insurance.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwosil/how_do_i_fix_the_lip_sync_on_my_vizio_sound_bar.pdfIn PDF document text
    • https://s3.amazonaws.com/mukutud/how_to_reset_flysky_fs-gt3b.pdfIn PDF document text
    • https://s3.amazonaws.com/zurovajij/aircraft_maintenance_engineer_course_in_canada.pdfIn PDF document text
    • https://s3.amazonaws.com/bejenosugede/93850294824.pdfIn PDF document text
    • https://s3.amazonaws.com/dopugaxelelema/halo_song_by_beyonce.pdfIn PDF document text
    • https://s3.amazonaws.com/mijumomub/gerunds_as_subjects_worksheet.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_off0000f89a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF89A 5308 bytes
SHA-256: d3eca295583f2a36737409d32fc9e69c23a1864881a2f248ef4ddf0f3ec2dca3
font_01_sfnt_off00010aa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AA1 11416 bytes
SHA-256: 1d27211c2970fdee964b0c790d6dc4d4d4ae4d93ca1243338cf757002ba6abfa

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