Malicious PDF — malware analysis report

Static analysis result for SHA-256 0741b7614f00d5fa…

MALICIOUS

PDF

67.6 KB Created: 2021-04-01 00:27:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: e024070a7988b118304a1aae948e1d24 SHA-1: 92e0689a5a79ab727d53c7edabf0357d1cf74e72 SHA-256: 0741b7614f00d5facf6098e6b3c7789a44f7040f05c1bfa9828e9eba7d29e80c
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of external URLs suggests the document is designed to redirect users to potentially harmful content.

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/award?keyword=oracle+autonomous+database+for+dummies+pdf PDF link annotation
    • http://scriptbook.xyz/principles_of_environmental_science_cunningham_8th_edition_download83k2u.pdfIn PDF document text
    • http://vas-rem.ru/birthday_cake_images_for_man_with_name46c4w.pdfIn PDF document text
    • http://disconto50.info/sesuzovesovokobgommr.pdfIn PDF document text
    • https://dawiganolakegoz.weebly.com/uploads/1/3/4/3/134367714/fc7c11a0a322b3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380887/normal_601fb6fce2b9a.pdfIn PDF document text
    • http://dodemul.mygamesonline.org/sbi_internet_banking_profile_password_reset_form.pdfIn PDF document text
    • https://xokamusepefep.weebly.com/uploads/1/3/4/7/134721243/8258470.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401525/normal_5fe46fdce7d09.pdfIn PDF document text
    • http://titoto.xyz/a_first_course_in_database_systems_3rd_edition_free_download49nlz.pdfIn PDF document text
    • http://woxijakuzadajew.getenjoyment.net/what_was_the_iron_curtain_during_the_cold_war.pdfIn PDF document text
    • http://prizinsta.info/how_to_replace_a_2013_equinox_batteryijifv.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/15b06c8c-2f3a-44a1-82e3-0b858ba2a5b2/madeline_book_series_in_order.pdfIn PDF document text
    • http://zekezixurul.onlinewebshop.net/dupelimelu.pdfIn PDF document text
    • https://s3.amazonaws.com/savukojubusum/how_do_you_get_vr_for_ps4.pdfIn PDF document text
    • https://s3.amazonaws.com/sowirutelevolur/what_is_singer_songwriter_genre.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c635f0e-8cce-4187-8f15-d12374e70cfa/singer_touch_and_sew_bobbin_case.pdfIn PDF document text
    • https://s3.amazonaws.com/sinamozagemoger/96263922066.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27bbcaaa-43ad-4c01-aecb-e8338b64828a/acorn_stairlift_fault_code_j3.pdfIn PDF document text
    • https://s3.amazonaws.com/fojaxexino/70891882702.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_off0000cce1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCE1 5468 bytes
SHA-256: 3d8f9092d1c1cd9ba9aab83b7a380c596afe80661e6a4075556b6293b19ebfe2
font_01_sfnt_off0000df51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF51 9872 bytes
SHA-256: f33e4c88fcf4c691ae8d43e687d1965f57c0ed78d42ade32ae1f92670604ea67