Malicious PDF — malware analysis report

Static analysis result for SHA-256 b46cc46df81744e2…

MALICIOUS

PDF

89.0 KB Created: 2021-03-24 21:13:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: af207d711494f7e7487c41f40fb486f7 SHA-1: 1c42376313dbfdb4150e0035ad2f7a3ffbab14a6 SHA-256: b46cc46df81744e25e0445343da49ab09e7d0802df7c64b2585841f3a75f2c09
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 0.9989

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://resalured.ru/123?utm_term=emery+telcom+channel+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4416510/normal_5fe6b696be1f4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401732/normal_603ec7f3c37e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491168/normal_60564c1434832.pdfIn PDF document text
    • http://butinejijobu.iblogger.org/bst_dongle_setup_3._34.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376601/normal_6001a9670f81e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501054/normal_5fcba9e02d295.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://s3.amazonaws.com/rubidokezive/96234011567.pdfIn PDF document text
    • https://s3.amazonaws.com/ximupuv/how_to_turn_off_alarm_in_casio_watch.pdfIn PDF document text
    • https://s3.amazonaws.com/zevutebulaworel/4069604521.pdfIn PDF document text
    • https://s3.amazonaws.com/leteraxewe/berajis.pdfIn PDF document text
    • https://s3.amazonaws.com/nerugiraxura/nobigalazerakepu.pdfIn PDF document text
    • https://s3.amazonaws.com/rilexazejuzovep/87816381406.pdfIn PDF document text
    • http://movutep.rf.gd/lolaxizadezosonogeseriro.pdfIn PDF document text
    • https://s3.amazonaws.com/fobupojowojon/mandated_reporter_laws_california.pdfIn PDF document text
    • https://s3.amazonaws.com/bulozor/mexoji.pdfIn PDF document text
    • https://s3.amazonaws.com/kudufigunabi/90159323396.pdfIn PDF document text
    • https://s3.amazonaws.com/tobobowu/acca_f9_bpp_book_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jaxesabi/android_phone_says_connected_no_internet.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/probability_distribution_formula.pdfIn PDF document text
    • https://s3.amazonaws.com/xapijifas/contemplate_synonym_starting_with_s.pdfIn PDF document text
    • https://s3.amazonaws.com/topipovikapari/how_to_light_weber_spirit_grill_manually.pdfIn PDF document text
    • http://fetipuwive.epizy.com/ap_biology_chapter_11_12_13_test_answers.pdfIn PDF document text
    • http://bapexuzajo.epizy.com/fadanabu.pdfIn PDF document text
    • http://gejevebo.epizy.com/57865735546.pdfIn PDF document text
    • http://ziputira.epizy.com/story_of_an_hour_quiz.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010f1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F1A 5116 bytes
SHA-256: a52195428f46995bcb54cd211cf3de1315fd23321e4d7d587de019517b21710d
font_01_sfnt_off00012052.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12052 11248 bytes
SHA-256: 8b5c9d1c7c827f5037e44af68ac4bd34de635e05509f37147a3358504bfc1015
font_02_sfnt_off00014681.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14681 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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