Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae51baa70f49cfcc…

MALICIOUS

PDF

76.4 KB Created: 2021-04-11 00:27:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 56f443ffc2b80766f3bde3b25c5351b7 SHA-1: c7d9b6d8ca7f011918c43d5ee3c3b1eedeb0ae0d SHA-256: ae51baa70f49cfcc132720d619b41415028874d78157de372143b237d550424d
126 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous embedded URLs, with a primary suspicious URL being https://maypoin.ru/strik?utm_term=magic+bullet+blade+replacement+canada, which is likely part of a link farm designed to redirect users. The document body, though heavily obfuscated, suggests a lure related to 'magic bullet blade replacement canada', further supporting a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://maypoin.ru/strik?utm_term=magic+bullet+blade+replacement+canada PDF link annotation
    • http://fbdirect.site/python_django_web_development_tutorialkf338.pdfIn PDF document text
    • http://memisada.mygamesonline.org/kaxulu.pdfIn PDF document text
    • http://mon-cmbretagne.best/88947948893re5wj.pdfIn PDF document text
    • http://wordsideget.top/775790842040p0jn.pdfIn PDF document text
    • http://wusozupu.mypressonline.com/dictionary_of_american_slang_and_colloquial_expressions.pdfIn PDF document text
    • http://pemufosapakem.mypressonline.com/basic_anesthesia_book.pdfIn PDF document text
    • http://talajifit.mywebcommunity.org/blender_2._8_shortcut_keys.pdfIn PDF document text
    • http://wigageturuv.mywebcommunity.org/greatest_common_factor_worksheet_6th_grade.pdfIn PDF document text
    • http://ladekepevij.mygamesonline.org/shirt_collar_pattern.pdfIn PDF document text
    • http://boevoenlp.com/tippmann_a5_parts_south_africajxm2n.pdfIn PDF document text
    • http://pagujubemozakev.22web.org/administrao_financeira_brigham.pdfIn PDF document text
    • http://investorlands.ru/seporexinesipabiwasogirn17ih.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rudezil.rf.gd/20478205986.pdfIn PDF document text
    • http://joxegav.rf.gd/anaphylactic_shock.pdfIn PDF document text
    • https://a9864912-ad24-422b-99f3-2d90f7703507.filesusr.com/ugd/d6af85_c5018d695a504baeabde88f01ec58de4.pdf?index=trueIn PDF document text
    • http://zejibanunepi.myartsonline.com/8114476660.pdfIn PDF document text
    • https://f1fb087f-5d49-4061-aa02-230b108315d3.filesusr.com/ugd/645068_9387ac99b2414c388336a7240384edf5.pdf?index=trueIn PDF document text
    • http://rorazizaxaf.atwebpages.com/78441854443.pdfIn PDF document text
    • http://kejoluxukoso.rf.gd/xemuwogutudupere.pdfIn PDF document text
    • http://tanonarimunal.myartsonline.com/wepubet.pdfIn PDF document text
    • http://foduxidepozipiw.myartsonline.com/linux_system_administrator_job_description.pdfIn PDF document text
    • https://551f0ad2-75d1-4009-b90b-2f3e3e20230b.filesusr.com/ugd/c2bf0a_819d257400b740cba5055345e934409f.pdf?index=trueIn 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e6f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6F5 5360 bytes
SHA-256: c02615cb3d1c407936fef1cc44c4ac0381d6edf7d8fb45196871fe212efdd2cf
font_01_sfnt_off0000f91f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF91F 12172 bytes
SHA-256: 2b0f26f470d05b65bc33b85cae4f34cf378d4fdc16e32d1a7e570df35ae02d0c

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