Malicious PDF — malware analysis report

Static analysis result for SHA-256 6134bfea94488cf5…

MALICIOUS

PDF

59.1 KB Created: 2020-11-24 01:34:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: c8847968aef621b5c8aa1e975a268502 SHA-1: 91127ad520e2548ced2fa3a6a9f305fa135fcbb8 SHA-256: 6134bfea94488cf5f668d97769dad58fcd2baed54e2b8b4e32009c3ca50dfc01
96 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 external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://trafffe.ru/strik?utm_term=from+rosie+to+lucy PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8e889ba-6d9b-4a02-a00b-d3be10e1da45/2012_ford_focus_repair_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fofeguj/lirovuj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51f9a889-3349-4764-ad7d-bf993809e6f7/mcdougal_the_americans_textbook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd6582df-7c6d-44a0-bb7b-bd0a4e61e7b2/thompson_and_bordwell_film_history.pdfIn PDF document text
    • https://s3.amazonaws.com/xabalaru/adobe_reader_download_windows_10_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/829cbbb7-56dd-48ac-8fef-013586dba198/nepedasubemipumubuzinef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed8d92cb-13a6-40e3-9386-fa3e0e7febd5/juliet_takes_a_breath.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/army_drivers_training_road_test_checklist.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad261fee-8b10-4d3d-97f3-432f539c934e/hentai_porn_xxx.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzumeb/general_formula_carboxylic_acid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8cf82040-485f-4577-ba84-eff0a4ab5e1c/fifir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14f9a3d7-f39f-4a09-868f-ad8ecaec0760/anime_like_sao_alternative.pdfIn PDF document text
    • https://s3.amazonaws.com/pizexopenaxu/bartender_resume_profile_sample.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_off0000b315.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB315 4792 bytes
SHA-256: f8e694ac3990defc460ef6aa45803d239d0eee72220e9df1408db0b158125d17
font_01_sfnt_off0000c359.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC359 8364 bytes
SHA-256: 02d53901197cc3297e1f7adafb4672d410537c99abb70ec85074ac4cc6f49294