Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e213115a04952c7…

MALICIOUS

PDF

64.6 KB Created: 2020-11-10 11:59:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 332a24a73e93fbd15e4d75b85615e5ea SHA-1: bf33f2a232be1f0dcaf11eee5cac848b8ba47bab SHA-256: 5e213115a04952c7ea563db99d64f7bd5f00fb9301f07c3e74bce3b5c2a8c63e
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'trafffi.ru' suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URI are indicative of a malicious document designed to trick users into visiting a potentially harmful website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafffi.ru/aws?keyword=jj+s+pizza+shack+coupons PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387410/normal_5f9fe22042700.pdfIn PDF document text
    • https://dunefofitibo.weebly.com/uploads/1/3/4/6/134608320/9521847.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/lezopobigeza/spectrum_remote_setup_to_cable_box.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/559d6f23-1fa0-4a32-9bc7-c08c3504d1ae/joguxul.pdfIn PDF document text
    • https://s3.amazonaws.com/wuniku/arab_times_kuwait.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9348f470-b37d-457f-8bc4-4d4038bdf505/likowutiro.pdfIn PDF document text
    • https://s3.amazonaws.com/vuliwisuwig/broken_vessels_hillsong_lyrics_and_chords.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/motoretimusewimulodi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb135430-9d68-4600-b52b-ebd3b0e126f9/2823090563.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cff6ef56-23a8-4d94-90c7-5548b0ec34ba/16320899069.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d1bae3c8-d119-4d54-becf-6c969ede49f1/fx_cheat_sheet_currency_converter_for_travelers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea8243c6-f6e3-4a4f-bb9f-fb295860d7ed/genajenenipodutunagagiboj.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_off0000c05f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC05F 5072 bytes
SHA-256: 263a493ab61d355c13a72c01fb23746388b4446457723823b442a05ba9ca0969
font_01_sfnt_off0000d1ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1AD 10724 bytes
SHA-256: b7aafc152e9cf79cc50bdda61afc169f23389192f2b6093b877d710474703546