Malicious PDF — malware analysis report

Static analysis result for SHA-256 144ba3cf74a5f03d…

MALICIOUS

PDF

79.5 KB Created: 2021-03-24 16:33:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 1c7bbf850aabeeb7346a2f4896d64efe SHA-1: ef83d2694436c1edf7ef808c1a20b5d5cf143ea7 SHA-256: 144ba3cf74a5f03d834bf6f5fa919c5f15db329d8a68ac350870a800eab77ace
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://botokaw.ru/wix?keyword=how+to+hack+drive+ahead+2020 PDF link annotation
    • http://povisowalikim.scienceontheweb.net/birla_sun_life_mutual_fund_sip_cancellation_form.pdfIn PDF document text
    • http://xapozekaxo.iblogger.org/lemopuxibak.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485926/normal_600d4a6ac178e.pdfIn PDF document text
    • http://rejuxipo.iblogger.org/read_application_x-_www-_form-_urlencoded_c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383681/normal_5fd0f51c4a266.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369307/normal_603e9126d3e46.pdfIn PDF document text
    • http://kexevosizamem.iblogger.org/anatomy_upper_limb_textbook.pdfIn PDF document text
    • http://jidudilubad.mygamesonline.org/medical_certificate_application_form.pdfIn PDF document text
    • http://konanozopesan.22web.org/20222158851.pdfIn PDF document text
    • http://foxutizu.22web.org/pososu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503767/normal_603e946cc0400.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/dapekufoxiraku/android_tv_games_gamepad.pdfIn PDF document text
    • http://paguxesij.myartsonline.com/jotunesekeliwufidip.pdfIn PDF document text
    • http://tuvufuxo.epizy.com/mukafejurofevadu.pdfIn PDF document text
    • https://s3.amazonaws.com/bivanud/ayrex_demo_platform.pdfIn PDF document text
    • http://dalegesezo.rf.gd/jitisu.pdfIn PDF document text
    • https://s3.amazonaws.com/xeropizuwe/herblore_guide_osrs_twisted_league.pdfIn PDF document text
    • http://rabatelekovufar.myartsonline.com/pathfinder_2nd_edition_core_rulebook_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/xomepixo/task_synchronizing_subscribed_folders_reported_error_0x800ccc0e.pdfIn PDF document text
    • https://s3.amazonaws.com/fadedosi/litajobadirowa.pdfIn PDF document text
    • http://jokajejuti.atwebpages.com/febabi.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_off0000ed56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED56 4948 bytes
SHA-256: 6c9e9d9b2f261dc276ae6b2d8940b1becf5e356c6b2cc22902273107fccfad71
font_01_sfnt_off0000fe4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE4E 10616 bytes
SHA-256: 30d327ec1f47415a088b0b4bcd3d69e9669b2770f4fe97d41339ce70a5aefdbd
font_02_sfnt_off000122a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122A8 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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