Malicious PDF — malware analysis report

Static analysis result for SHA-256 38aab119b7490350…

MALICIOUS

PDF

81.6 KB Created: 2021-03-17 20:39:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 44e1e517fa334c7f52c1dfeda87049e1 SHA-1: 1e326d67d5ad4b64527be050329a221c4497b598 SHA-256: 38aab119b749035058d8ebd9502ed125492a0876b2eeedb2085210edf8e61fa8
146 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including ML classification and ClamAV detection. It contains numerous external URIs, with a primary focus on a URL that mimics a search result for "Clarion county pa recorder of deeds", suggesting a phishing or scam lure. The presence of embedded URLs and the link farm heuristic indicate an attempt to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://gimoguvi.ru/wix?keyword=clarion+county+pa+recorder+of+deeds PDF link annotation
    • http://xanejog.medianewsonline.com/51516452666.pdfIn PDF document text
    • http://kpupnov.pro/torogurie6mkd.pdfIn PDF document text
    • http://fapasevusiledap.mygamesonline.org/pujuf.pdfIn PDF document text
    • http://tifoxikutawe.sportsontheweb.net/sony_bravia_32_inch_led_tv_price.pdfIn PDF document text
    • http://fb-copyright-help-from.com/wafawajukavidivofoxuuks5j.pdfIn PDF document text
    • http://niluwipewuxasa.medianewsonline.com/38430702003.pdfIn PDF document text
    • http://sportita.fun/how_to_answer_chevening_leadership_questionce8nk.pdfIn PDF document text
    • http://zomaragexavope.sportsontheweb.net/treble_clef_ledger_lines_worksheet.pdfIn PDF document text
    • http://allostar.buzz/98282468712xpa8t.pdfIn PDF document text
    • http://jepisafidezegun.scienceontheweb.net/dezusamomuxejinafodikorit.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/70b1ba8f-eb5f-405a-83f5-8c012ffaf086/bear_scout_handbook_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2521a8c0-2a35-4f2a-8838-165a2e09d7c1/botatejurinizo.pdfIn PDF document text
    • https://df6a9abb-74f3-47e1-b359-fe6d1019da36.filesusr.com/ugd/7921d2_c6aff249a494419eb49d597578eaf76b.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/132683b5-f728-4625-959a-fe40d7db4302/lyrics_on_my_own_les_miserables_original_broadway_cast_recording.pdfIn PDF document text
    • https://s3.amazonaws.com/nigimul/wanukomeri.pdfIn PDF document text
    • https://s3.amazonaws.com/liguwubore/whatsapp_status_video_sharechat_2019.pdfIn PDF document text
    • https://460eb545-5389-4aa9-9e78-d1074a8bca0c.filesusr.com/ugd/21a131_56d63fc7d41c445296516968f2dfa7b0.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sifawekujiki/rubalixebogowujekixukowe.pdfIn PDF document text
    • https://5a1138df-423b-4a5d-a7c7-36223740754e.filesusr.com/ugd/a72fa8_0ab5a630a1d44ed895b0cfcb180c231e.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/banula/16178791849.pdfIn PDF document text
    • http://peledopa.myartsonline.com/fofepivufolexumabafabi.pdfIn PDF document text
    • https://e0ff2378-281a-4ea3-95ae-419c526fdc99.filesusr.com/ugd/0baf77_55580449182c497eb7d42df59c8bd7e4.pdf?index=trueIn PDF document text
    • https://92fed17e-af34-466b-b3fe-38cd9ef27699.filesusr.com/ugd/192d58_ef9934eaad11486c80327379c340ed77.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fd2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD2A 5156 bytes
SHA-256: 11a77cb039d017a52dde5f894200bcdd699321e0a0970560a63d300f0d70f32a
font_01_sfnt_off00010ece.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10ECE 11936 bytes
SHA-256: 74ca300d8388418bb9f94d40462da4224de9d12bfa5f2571d3f57a923920f51c

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