Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae1ee1aa3ecfaba2…

MALICIOUS

PDF

82.4 KB Created: 2021-03-24 01:43:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 43f361e793eaebdb737f3bd9c47460ab SHA-1: 9a4822f81adacbb38ad9a6b76dbee65cdf396626 SHA-256: ae1ee1aa3ecfaba202a9ca9926ac3225f98676775441efc555f57833b925295a
96 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. An embedded URL, https://jottigo.ru/strik?utm_term=comparatives+and+superlatives+exercises+english+hilfen, was found, suggesting a phishing or malware distribution attempt. No scripts were extracted, but the PDF structure and embedded URI heuristic indicate a malicious intent to redirect the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/strik?utm_term=comparatives+and+superlatives+exercises+english+hilfen PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4460725/normal_604a59c491e40.pdfIn PDF document text
    • https://cdn.sqhk.co/jajotulix/gpkDZij/8404028252.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370560/normal_5fc92577eef96.pdfIn PDF document text
    • https://cdn.sqhk.co/sadetujadufi/abXgjhi/joyous_celebration_20_songs_list.pdfIn PDF document text
    • https://cdn.sqhk.co/kavatupopum/hjxhgcM/thief_city_heritage_plaques_locations.pdfIn PDF document text
    • https://cdn.sqhk.co/devuzemalut/ijAiiri/woladunude.pdfIn PDF document text
    • https://cdn.sqhk.co/webuzifinuno/6Jhguhd/word_connect_level_1596.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496818/normal_5ff9ba5912950.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387709/normal_603bbbad4369b.pdfIn PDF document text
    • https://cdn.sqhk.co/gafisasiwu/bYAVoif/diary_with_lock_app_apk_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499283/normal_603fdc26280b8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427097/normal_5fd60c7238079.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427076/normal_6035205395856.pdfIn PDF document text
    • https://cdn.sqhk.co/risubibasero/dldidgd/drive_on_autobahn.pdfIn PDF document text
    • https://cdn.sqhk.co/viwedanej/biiuSjl/high_school_escape_level_5_explained.pdfIn PDF document text
    • https://cdn.sqhk.co/beluvano/iicjfgg/30525046554.pdfIn PDF document text
    • https://cdn.sqhk.co/wamitavixitu/gfynifL/94790216147.pdfIn PDF document text
    • https://cdn.sqhk.co/ripalufix/MXtjaZ4/bamotaxoxemeberag.pdfIn PDF document text
    • https://cdn.sqhk.co/kewesowovim/hgghezp/ripakugufitiforojar.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/tarizirefevifab/magigupokabutivafuma.pdfIn PDF document text
    • https://s3.amazonaws.com/lusegokaves/29088272996.pdfIn PDF document text
    • https://s3.amazonaws.com/nigimul/schengen_visa_france_application_form_vfs.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC1C 5604 bytes
SHA-256: 2fdd13ec1b30b563e686e62d565ab19152044669cd8f9c248307d08f81d5817d
font_01_sfnt_off0000ff05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF05 11032 bytes
SHA-256: 7a954a4636a7ec34e30c665974b6d4c0f230fa3c1815990aeb3b91ff3095a304
font_02_sfnt_off000124e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124E3 16096 bytes
SHA-256: 292b67320f20e7e38814323bff47001ccb55b5eebb397aea8a254f3e91f57b87

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