Malicious PDF — malware analysis report

Static analysis result for SHA-256 352772b02f894238…

MALICIOUS

PDF

79.6 KB Created: 2021-03-25 04:15:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: e06e7ba093a9edc171ae61007c94f4f9 SHA-1: e21f175be5247ee6632bfd9a2893e7d437f99e28 SHA-256: 352772b02f8942382752f5e0b09d9f9d88ba318f7c313e62d9089273e6ee5734
126 Risk Score

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, indicating a high likelihood of malicious intent. The document contains numerous external URIs, many hosted on disposable domains, suggesting a link farm or phishing lure. The presence of embedded URLs and the overall structure point towards a phishing attack, likely using the 'Ar 15 10.5 in pistol in texas' lure to entice users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 5

  • 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.
  • 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://dugedepap.ru/aws?utm_term=ar+15+10.5+in+pistol+in+texas PDF link annotation
    • http://itclick.pro/epson_l355_manual_tecnico90q09.pdfIn PDF document text
    • https://rizomoxus.weebly.com/uploads/1/3/4/5/134589692/1fccb69cd1b.pdfIn PDF document text
    • http://tujugebisuxilun.22web.org/driver_atheros_ar8152_windows_7.pdfIn PDF document text
    • https://niromovikusuzu.weebly.com/uploads/1/3/4/6/134651616/1c9cdffb6.pdfIn PDF document text
    • http://junumidutuzakox.getenjoyment.net/16715488439.pdfIn PDF document text
    • http://kilebekum.iblogger.org/sopadafurowesuj.pdfIn PDF document text
    • http://pe50off.info/33603212034frir8.pdfIn PDF document text
    • http://pozijuza.scienceontheweb.net/60465721207.pdfIn PDF document text
    • http://fokagud.iblogger.org/percy_jackson_and_the_lightning_thief_book_summary_by_chapters.pdfIn PDF document text
    • https://wesarifalonaba.weebly.com/uploads/1/3/5/9/135961423/203b542.pdfIn PDF document text
    • http://24goodstore.site/puvetofesu8nais.pdfIn PDF document text
    • http://pebifakonek.sportsontheweb.net/tutorial_blender_3d_bahasa_indonesia.pdfIn PDF document text
    • http://bewilotaweje.mywebcommunity.org/jemogidalevepi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xuxivobanirug.epizy.com/65881575584.pdfIn PDF document text
    • http://ketabigumowun.atwebpages.com/gujufalidupula.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25063ded-8cdc-47ae-abf0-bb46bfd9438b/96432264953.pdfIn PDF document text
    • https://s3.amazonaws.com/vuforewebub/dell_xps_420_power_supply_upgrade.pdfIn PDF document text
    • https://s3.amazonaws.com/gimufesajo/21698460433.pdfIn PDF document text
    • https://s3.amazonaws.com/rorives/what_order_should_i_read_the_robert_langdon_books.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6c2f05d-c05d-4a70-bff6-7c342aff7635/overcoming_the_5_dysfunctions_of_a_team_summary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7ed94eb-55d2-4732-9881-b1903e2f497a/watch_twilight_eclipse_online_free_streaming.pdfIn PDF document text
    • http://repogadobuwiri.epizy.com/akali_rework_combo_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b2610db-bcfb-4203-9097-de857168966b/purely_functional_data_structures_haskell.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_off0000f79b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF79B 5220 bytes
SHA-256: d583f493f986278d9f8476e361f4341480e2f565835515793f212bdc80ed372b
font_01_sfnt_off0001097d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1097D 11700 bytes
SHA-256: 774ce7c402cc9c14e247828a7dfc74c08158fb3ba1c472eaf442bef0b784dba1

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