Malicious PDF — malware analysis report

Static analysis result for SHA-256 19b14d1c6418acc0…

MALICIOUS

PDF

75.6 KB Created: 2021-04-11 11:31:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: b72b772e33cbdf74a7373d2e181cb5ab SHA-1: 5f13e54638d39896bf6b29aacd12e00c343645d2 SHA-256: 19b14d1c6418acc09ceb4e79fefb3832b7b3abac7b2e35c3ee7f6623e6280ab0
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 0.9996

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://kuzutuzo.ru/strik?utm_term=what+are+some+assessment+tools PDF link annotation
    • http://pamuxixa.iblogger.org/important_english_words_with_telugu_meaning.pdfIn PDF document text
    • https://cdn.sqhk.co/lewiwifo/ao6AFFZ/jensen_s_grocery_palm_desert.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421199/normal_5ff9eb735506a.pdfIn PDF document text
    • https://netexebi.weebly.com/uploads/1/3/0/8/130815192/04f2159d.pdfIn PDF document text
    • https://jakemujilofadam.weebly.com/uploads/1/3/1/3/131380171/vexet.pdfIn PDF document text
    • https://sutomoloxoxe.weebly.com/uploads/1/3/5/9/135986515/suxevonodupor_zatopunuw_gagedobumigiros.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413110/normal_6060f9e27402b.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvepelela/cidjjdV/splendor_alloy_wheels_online_shopping.pdfIn PDF document text
    • https://cdn.sqhk.co/dopuzodopuvu/vDhj8je/buzz_cut_fade_with_beard.pdfIn PDF document text
    • https://zibufiwoteder.weebly.com/uploads/1/3/4/3/134318613/xikovito-dujatedisavikeb-dunujowawak-kuvigosuki.pdfIn PDF document text
    • https://laxivaxof.weebly.com/uploads/1/3/0/8/130874385/fazekapijus-dogevenikaxaz-remunugowuwitir-sifiwiviri.pdfIn PDF document text
    • http://lozajakar.iblogger.org/endnote_x6_software_free_full_version.pdfIn PDF document text
    • https://cdn.sqhk.co/damapegapi/QghBaCa/formal_definition_of_barista.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/pegozegi/harry_potter_spells_in_hindi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a6fdad0-37d8-4fe6-9835-704c3b2ea903/87193943091.pdfIn PDF document text
    • http://wexuboguke.epizy.com/daxawu.pdfIn PDF document text
    • https://s3.amazonaws.com/wofaxil/58217014332.pdfIn PDF document text
    • https://s3.amazonaws.com/vovopafubipu/how_to_tell_the_weight_of_oil_fast.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc4ac4cb-5901-425a-bb22-934733b23c06/76260905198.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9720c39-3b99-49c6-94c3-a25762a4b68b/how_to_do_carpentry_basics.pdfIn PDF document text
    • https://s3.amazonaws.com/towutoginadivu/photoshop_shortcut_keys_cs6.pdfIn PDF document text
    • https://s3.amazonaws.com/woxewiwupir/the_nielsen_total_audience_report_q3_2018.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_off0000e9f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9F5 4940 bytes
SHA-256: df77f30dfaec8468dce144ce1cd91624faebd317d143e043a011e4eb56d1281a
font_01_sfnt_off0000fa9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA9D 10864 bytes
SHA-256: a093641ff4b59e285ef55637d9c7fde30818c0757f3e9f9412d6ba15ae533ac0

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