Malicious PDF — malware analysis report

Static analysis result for SHA-256 003c9be3e637bf7d…

MALICIOUS

PDF

67.0 KB Created: 2021-03-16 16:08:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 438d1c94228ca691a02cadf220f2b0cd SHA-1: 56ed5106ee88a2df5d16108b4888ccd74480393a SHA-256: 003c9be3e637bf7dbe82bf1fb1f370d53d9c50dda493fd15be13b5f13dd05742
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URL pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The PDF structure and embedded content suggest it is designed to exploit vulnerabilities or trick users into interacting with malicious links.

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://seumenha.ru/wix?keyword=gifs+de+boa+noite+com+musica+gospel
    • http://gmetry.online/m_audio_keystation_49_mk3_softwareb88fb.pdf
    • http://verifedform.com/what_is_dsc_fault_fordmo58c.pdf
    • https://difegalit.weebly.com/uploads/1/3/2/6/132681294/tikebajewutolipi.pdf
    • http://chelobaka.space/kobepesinugapupufesijik94p78.pdf
    • http://udilische.club/jibipegikafarumamapumi83c.pdf
    • http://idealica-tufficiale.website/construction_technology_notesupjeu.pdf
    • https://tevufipe.weebly.com/uploads/1/3/1/6/131606546/roposifenu.pdf
    • http://on-arenas.com/bundelkhand_university_online_form_2019mybwx.pdf
    • http://emirofficialzm.com/viral_myositis_treatment_guidelinesu8r4x.pdf
    • http://lnstagramoriginal.com/tekken_3_pc_game__30mbid3jd.pdf
    • http://helplnstagramcontact6088758.com/firivixxgkcu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://c6f55193-7475-4343-97dd-33cb3b141b6a.filesusr.com/ugd/808d8c_f983b387392b4ff185cfe2b30b64db5d.pdf?index=true
    • https://s3.amazonaws.com/kalanejaxutilif/jikudorikabudenajutipaxar.pdf
    • https://d45380bd-a93d-4ef2-b2bd-4c7806d1f6db.filesusr.com/ugd/5d2cf3_2618da6c31fd4b4c84a84c7de72a807e.pdf?index=true
    • https://s3.amazonaws.com/guxosa/30516980938.pdf
    • https://527ed197-5826-4432-9c89-449afa9d705e.filesusr.com/ugd/65ef70_facaf6fe53f3450cab761b1dc5b99299.pdf?index=true
    • https://s3.amazonaws.com/jokotaziweluge/35118811707.pdf
    • https://0071e0df-bf19-4860-a176-ffcbf6e54146.filesusr.com/ugd/c34eac_e4600edf6be04796a13a09de6f971fbd.pdf?index=true
    • https://923a8ca3-316b-4844-b38f-9bc955ad4852.filesusr.com/ugd/312e0e_7ee23aa0d39b4e899e25e216673112c8.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c677.bin
5a6a569bb2cc83c2d063cc13ab14df99e338f72a1afaa4df24ae309b842c73a4
pdf-font-stream PDF embedded font (sfnt) at offset 0xC677 5552 bytes
font_01_sfnt_off0000d94d.bin
710dbbbcf1e84b458a13bb0c8576cd13f56e1d0499c924abd8aae86d3de0d496
pdf-font-stream PDF embedded font (sfnt) at offset 0xD94D 11792 bytes