Malicious PDF — malware analysis report

Static analysis result for SHA-256 45804d6de54c02b8…

MALICIOUS

PDF

36.9 KB Created: 2020-10-31 00:22:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: f0200fbb538118669393fdc171a28145 SHA-1: 13e42bcfb49263b3e9fb55263ac06326b8718a69 SHA-256: 45804d6de54c02b86264d80af9cb6fc484e38b7b94832994ad17d8065184ded2
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier as malicious and contains a link to a known malicious redirector infrastructure. This suggests the document is designed to lure users to a harmful website, likely for phishing or malware distribution. No scripts were extracted, and the document body was heavily obfuscated, preventing further analysis of its specific content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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://ttraff.cc/123?keyword=dr+mansour+rostami In PDF document text
    • https://cdn-cms.f-static.net/uploads/4407314/normal_5f9bcc3f44d88.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368958/normal_5f9a63e9b4dcf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378381/normal_5f9468f79a5aa.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/buxoparadazegu/me3_tuchanka_mission_order.pdfIn PDF document text
    • https://s3.amazonaws.com/mubefula/fricative_consonants.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb4a0ecb-95b5-4e4d-9839-1a55a03b59e9/forge_of_empires_guild_treasury.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7546abae-2e92-415d-8433-eb7a8e61c9c8/9797238458.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78f4da3c-f371-460b-bf87-55d855c0b676/runescape_fairy_ring_teleport_codes.pdfIn PDF document text
    • https://s3.amazonaws.com/ratixifo/understanding_statistical_process_control_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4ca848f-8953-47d1-a605-c492cfee3b50/zefazoretufuzog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b11f1ba6-e767-425d-b0c7-a19c7ba38585/zeselago.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ccc511a-e911-49d2-bcdc-5f8807a9dfa6/1._14_realistic_texture_pack.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/telecharger_attestation_pole_emploi_cesu.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_off000053a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53A9 4800 bytes
SHA-256: a24e97591baf08e0de3cadbd9c579f7447a1e5b0122eb078196ee480309896ba
font_01_sfnt_off000063df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63DF 10372 bytes
SHA-256: f2812cd54cdbd460763598d339d08441cf10b7f0d4aa2563d551a164f8e7f09a

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