Malicious PDF — malware analysis report

Static analysis result for SHA-256 94d5527a8ee7fae6…

MALICIOUS

PDF

63.3 KB Created: 2021-01-10 07:02:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 68370e0757c60cfcb86eabfabf6e5ae5 SHA-1: b53a42158bb07d02caa3f995fabcd0bce9908a35 SHA-256: 94d5527a8ee7fae645020f3ccf3187c6e267265d9dd8e5e4c28991b250fcf3d9
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'traffking.ru'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the redirector suggest an attempt to lead the user to a malicious site, likely for phishing or to download further malware. The document body contains garbled text and metadata, indicating it is not intended for legitimate user consumption.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://traffking.ru/123?utm_term=guitar+center+saxophone+reeds In PDF document text
    • https://fazotevepokok.weebly.com/uploads/1/3/4/8/134865813/zikokume.pdfIn PDF document text
    • https://norusukesalija.weebly.com/uploads/1/3/4/3/134356509/34c770ccedf.pdfIn PDF document text
    • https://tapugagujug.weebly.com/uploads/1/3/0/8/130813715/nomedixoko.pdfIn PDF document text
    • https://site-1168510.mozfiles.com/files/1168510/labyrinthine_artery_function.pdfIn PDF document text
    • https://guzepebizosi.weebly.com/uploads/1/3/4/8/134880367/sefomewonuz.pdfIn PDF document text
    • https://tibanevugite.weebly.com/uploads/1/3/4/6/134655495/de14e0.pdfIn PDF document text
    • https://cdn.sqhk.co/keserina/ian8aFj/mom_pregnant_newborn_baby_care.pdfIn PDF document text
    • https://site-1166610.mozfiles.com/files/1166610/tugirolisavojefegesi.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/lekizopiloref/zezomuwiritudeja.pdfIn PDF document text
    • https://s3.amazonaws.com/kudufigunabi/8th_grade_history_book_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/fukepez/watch_hobbs_and_shaw_online_free_123.pdfIn PDF document text
    • https://s3.amazonaws.com/vovopafubipu/letter_of_resignation_from_church_position_template.pdfIn PDF document text
    • https://s3.amazonaws.com/boxujetanonikuv/92036297315.pdfIn PDF document text
    • https://s3.amazonaws.com/pidufozu/best_action_movies_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisigetizoxif/dekofugesenozesoxu.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_off0000bbe1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBE1 5228 bytes
SHA-256: 5af501787604283cebc7792a8fda1d7350e0e20c83079da770db27f985eed6bd
font_01_sfnt_off0000cdad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDAD 10236 bytes
SHA-256: fb7ac7cf1b2a7da56f41d0a51acdaac89b1d82de5e3e855570fd62b0b88b2954

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