Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d9fac11587a28eb…

MALICIOUS

PDF

82.1 KB Created: 2021-03-31 04:52:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: fad326ab4679ee888d8b537df85e2994 SHA-1: abf4b4c5d89bec46cfac582c9a897fe505cf47b7 SHA-256: 9d9fac11587a28eb7e63e4378aba71f6193de6beee3d7099667316da961c9d45
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URI pointing to 'https://ponafet.ru/123?utm_term=basaltemperatur+kurvenblatt+pdf', which is likely a lure to a malicious site. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to trick the user into visiting a compromised or malicious domain, consistent with spearphishing tactics.

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
  • 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://ponafet.ru/123?utm_term=basaltemperatur+kurvenblatt+pdf PDF link annotation
    • http://palogaza.sportsontheweb.net/archival_science.pdfIn PDF document text
    • http://anarchymedya.com/soccer_goalkeeper_weight_training_routinezf0c9.pdfIn PDF document text
    • http://amst-watch-v2.club/tevekisizmo5v6.pdfIn PDF document text
    • http://vevufilusik.scienceontheweb.net/celebrating_diversity_through_world_literature_module_4.pdfIn PDF document text
    • http://agent-ritual495.online/13650835283zf8ik.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/dc2024b7-feb5-4db6-baa9-fe0f27fc7faa/51438265625.pdfIn PDF document text
    • https://s3.amazonaws.com/satudifin/98663274652.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd57b9db-e221-4070-844a-ea4d35e57a89/78080453913.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33450b54-1e4b-472b-b46d-93831804b773/wafebokixexakubokixunuj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f2277ff-332e-4b1e-ae68-56a2cd60ddcb/how_to_draw_a_girl_face_with_eyes_closed.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a6031ab-eddb-4c48-b4cc-6659cca6b72e/sidalozeje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8ccc397-94f5-453a-add7-64efb8dfcbd1/guwojujisip.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxulikiwab/principles_of_agribusiness_management_4th_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6626597d-7e39-4750-ba71-53c573ed348e/totaline_thermostat_manual_p310.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99706e07-4f94-49f4-b0d7-7f8a97fed715/does_two_can_keep_a_secret_have_a_sequel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f6b742e-8f54-4324-ba76-346eb5b7d7b8/meaning_of_number_802.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fbcc3205-ed13-4fb1-bbb3-cde50a7befda/67772082472.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ebe0973c-20d8-4fee-828f-c14626d4d711/medical_dictionary_hindi_app_download.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f46a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF46A 5224 bytes
SHA-256: f2a317fe04f5259002df49f1c41b5b742abea8f7c62bd80acd54d5d46b10eb86
font_01_sfnt_off0001060a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1060A 11888 bytes
SHA-256: d62a957efa1cfe45526d6d1594da2b19a448f0d637658fad5f92aa6683ed3b57
font_02_sfnt_off00012cf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12CF3 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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