Malicious PDF — malware analysis report

Static analysis result for SHA-256 70823d605ece8dea…

MALICIOUS

PDF

78.9 KB Created: 2021-04-06 09:55:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: ee89e6de0b16ffbbde78f291cfcbcfa1 SHA-1: 3f60e89689924105686caf01e0d1a3bf91bd038e SHA-256: 70823d605ece8dead07caf64becbc825dab3eefa577a594ea489c8b5a8e7915d
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://fokemale.ru/wix?keyword=anker+a7726+keyboard+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4388629/normal_60461b060bc65.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496165/normal_5fe3c5350f260.pdfIn PDF document text
    • https://cdn.sqhk.co/puxedimuwo/7ib8jc1/1990922466.pdfIn PDF document text
    • https://cdn.sqhk.co/nazabimon/gcihsz3/sce_login_english.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393033/normal_605f981ce5272.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410416/normal_5fe7e83a69394.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459162/normal_605ef30266838.pdfIn PDF document text
    • http://basiditdcf.space/doorking_1834_manualmuhq6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484993/normal_5fd08867cd030.pdfIn PDF document text
    • http://7lessons.site/63369247430zuxpi.pdfIn PDF document text
    • http://thestablestl.com/why_cant_i_scan_from_my_brother_printerojeg4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470218/normal_5feb700b123ba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468838/normal_6007682e13434.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384831/normal_604f12579eb88.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/9863352e-0583-4084-a9b0-8c399af5dbc2/woxuse.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_off0000dce7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCE7 5452 bytes
SHA-256: b89384a8e107eaeb62b8413d4336fac24f36c5d4d2dc1b8f3db87683e9e1573c
font_01_sfnt_off0000ef70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF70 11676 bytes
SHA-256: 69728521e5edb565c08ab896fb9b31e31417ab67c417b65918b19ecf7d0bd5f2
font_02_sfnt_off00011753.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11753 16348 bytes
SHA-256: 85e519c4a832edf3da2a25274da982e1bbafc2ccf4542953ec0e83103ca53275

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