Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae7ecafe90c744fd…

MALICIOUS

PDF

75.8 KB Created: 2020-12-24 22:57:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 8ed3438b7bde7006b5d7a7a2e1679e2d SHA-1: d56ddf0f45d4e8bb03bf4edc0d107820e32ae56d SHA-256: ae7ecafe90c744fd30bdf520887601b7a3e1e4b93520f77b1df94fb06ca983f5
156 Risk Score

Malware Insights

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

The PDF contains a significant number of external links, identified as a link farm. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or SEO abuse. While no scripts were explicitly extracted, the PDF structure and numerous external URLs suggest an attempt to redirect users to potentially malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffset.ru/123?utm_term=manual+plastic+embossing+machine+credit+card+embosser PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387565/normal_5f8d05f26884c.pdfIn PDF document text
    • https://cdn.sqhk.co/wetotuluxe/Ggfibic/drought_proof_ground_cover_plants.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380867/normal_5f9f4498d32a9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369160/normal_5f8a4baa930ab.pdfIn PDF document text
    • https://tewijudejasivi.weebly.com/uploads/1/3/2/6/132682467/duludivudiga_fubizini_jegudero.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465125/normal_5fc22236a1036.pdfIn PDF document text
    • https://cdn.sqhk.co/noxobabidof/hibjdIK/78963264289.pdfIn PDF document text
    • https://vususutuf.weebly.com/uploads/1/3/4/6/134634118/gusegixaxik.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501804/normal_5fe0adc2372ee.pdfIn PDF document text
    • https://cdn.sqhk.co/solumapidema/hdjfyjb/86238331212.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jedobufudajewu/technical_report_writing_format.pdfIn PDF document text
    • https://s3.amazonaws.com/bededuxotulapil/pokemon_go_trainer_hat.pdfIn PDF document text
    • https://s3.amazonaws.com/xanofamaja/realidades_workbook_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/nawuvud/chapter_10_circular_motion_test_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/bodajaku/centripetal_force_derivation_class_11.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_off0000e6cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6CB 5632 bytes
SHA-256: 44778c33c480bb036aae6a88b34a26f772cd3259ef11eeb9494347eca761c897
font_01_sfnt_off0000f9c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9C7 11276 bytes
SHA-256: 1691dfbcce94ff27ae48b9e03b9d402ed1f1cf9247d24ad2678f0cb71e5c7977

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