Malicious PDF — malware analysis report

Static analysis result for SHA-256 232414d4e058172e…

MALICIOUS

PDF

73.2 KB Created: 2021-03-02 00:43:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 88a2de5f5dca8c891758396e0348ad05 SHA-1: 2e9966f3579c49d437e347d1e8b9f78f8d8eba3a SHA-256: 232414d4e058172ef8e3ecaf83618f530776a73432f503d25ee3f8b2f73e3353
126 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9997

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 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://xezojetit.ru/wix?keyword=find+a+local+women%2527s+shelter PDF link annotation
    • http://xidakuxekon.22web.org/reporters_killed_today.pdfIn PDF document text
    • https://bozaxemavokasum.weebly.com/uploads/1/3/1/3/131383719/xowapasuti.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451229/normal_601aac82e3cd4.pdfIn PDF document text
    • https://dadojunolibete.weebly.com/uploads/1/3/2/6/132683289/malolizobajuvivog.pdfIn PDF document text
    • http://vknart.xyz/chiari_malformation_surgery_side_effectsxceph.pdfIn PDF document text
    • https://vigoxanumevu.weebly.com/uploads/1/3/4/4/134466257/tunoni_sakune_pitenibaso.pdfIn PDF document text
    • https://koberowebajufom.weebly.com/uploads/1/3/4/0/134096943/xigiwigibopapuk_jaxejoxokevozoj_sefal_lizenofojebezix.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mugoxox.epizy.com/free_templates_for_1st_birthday_invitations.pdfIn PDF document text
    • https://s3.amazonaws.com/fukepez/salazipuvekitijepijipavo.pdfIn PDF document text
    • http://peworesafasar.epizy.com/the_addams_family_theme_piano_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/fadobirak/batman_2008_movie_in_tamil.pdfIn PDF document text
    • http://zukavinu.rf.gd/face_shape_makeup_guide.pdfIn PDF document text
    • http://vesazunexupeva.epizy.com/my_stanley_garage_door_opener_troubleshooting.pdfIn PDF document text
    • https://s3.amazonaws.com/wobuzisibal/navowubokafidinefinafejot.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_off0000e1ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1AD 5260 bytes
SHA-256: 05193584a3642ebd60e7fb765444316930740b698bc33b66a4b15ff7bdcac374
font_01_sfnt_off0000f37f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF37F 10712 bytes
SHA-256: 06a90e08a439572b3c1a3eda5cfdcd2c455569752e94a891005678e8b4181e0a

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