Malicious PDF — malware analysis report

Static analysis result for SHA-256 2003472b19254a57…

MALICIOUS

PDF

67.1 KB Created: 2020-12-22 08:22:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 678381cfaac0f74e45f624f4a278adfe SHA-1: b86adae0952d484b03606443a172274b495b5239 SHA-256: 2003472b19254a57424c4cb13c2da71a1ff535b3a4dcf1cc593ae6aa2cf0a66c
156 Risk Score

Malware Insights

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

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 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://trafffi.ru/strik?utm_term=free+music+video+tv+show+film+on+youtube PDF link annotation
    • https://nisewoji.weebly.com/uploads/1/3/4/2/134266574/2794820.pdfIn PDF document text
    • https://mefixakiderix.weebly.com/uploads/1/3/4/3/134319494/tosivotezuwofobe.pdfIn PDF document text
    • https://sugelazo.weebly.com/uploads/1/3/4/7/134767002/butazivagovawaj.pdfIn PDF document text
    • https://wepebajaka.weebly.com/uploads/1/3/4/5/134588919/kegekumevedolik-vizajesewudiw-gukomowu.pdfIn PDF document text
    • https://sisaseno.weebly.com/uploads/1/3/0/7/130776680/4477203.pdfIn PDF document text
    • https://joleziravakejar.weebly.com/uploads/1/3/4/4/134460301/besoladosakob.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc0b63bab79f442f228a4c9/t/5fc0d89f9d79364840ad2de4/1606473888602/reino_monera_caracteristicas.pdfIn PDF document text
    • https://s3.amazonaws.com/jazofi/answer_me_jesus_pink.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc58976104edf1d77a08e6e/t/5fd6a546481cfa31add26d64/1607902535258/36207266795.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/fijuxonu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe2c593485235c868eecc0/1606298715595/piaget_powerpoint_presentation.pdfIn PDF document text
    • https://s3.amazonaws.com/wusone/xavunawofefixopiribo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbfd008c14dfd36feeb1b6e/t/5fd04cea5ec17a4c668d5cbb/1607486698879/samsung_galaxy_messages_for_web.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_off0000c8b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8B0 5400 bytes
SHA-256: 53467ab38034ed235f107d8ec46581aa7c2da6ab8869cac6ba0eb9a4401463b2
font_01_sfnt_off0000db06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB06 10756 bytes
SHA-256: ac5cad641999b4666d1e201fd6d63703bc673798ddd88833dd9de98e8a67fdab

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