Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c0a92f8a7f847c9…

MALICIOUS

PDF

101.3 KB Created: 2021-03-24 01:53:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 736736d74ac93cb2bc7c671a6e8c68fc SHA-1: 90dab5b504e7c14bc23468f2478b75aacb7ce9be SHA-256: 1c0a92f8a7f847c943460227c905e246627beca2b387ca6fa43d941598b3e43e
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 0.9994

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://resalured.ru/wix?keyword=american+customs+brokerage PDF link annotation
    • https://cdn.sqhk.co/ziriziwebu/bZAibje/trench_assault_hack_game_download.pdfIn PDF document text
    • http://creditscorecard.info/what_is_a_daphnia_definitionllgdb.pdfIn PDF document text
    • http://zumufufup.sportsontheweb.net/pujefesamodedeb.pdfIn PDF document text
    • https://cdn.sqhk.co/jovowosifo/ihaBAiW/gb40_boost_jump_starter_manual.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443823/normal_5ff663d9f25ee.pdfIn PDF document text
    • http://foxiduwanati.mygamesonline.org/netgear_wnr2000_setup_as_switch.pdfIn PDF document text
    • http://elinekici.online/crochet_mens_slippers_for_beginnersqnjql.pdfIn PDF document text
    • http://sujimelowakolop.medianewsonline.com/69138787208.pdfIn PDF document text
    • http://tadajixilatu.scienceontheweb.net/wupebuwevumusodasezo.pdfIn PDF document text
    • http://giveaway2020.info/cbse_board_date_sheet_2020_class_10kq58y.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405929/normal_60143f6d415b1.pdfIn PDF document text
    • https://cdn.sqhk.co/zibusisujij/jif47hi/commander_legends_booster_box_price.pdfIn PDF document text
    • http://qlemelest.online/469752775357zx8t.pdfIn PDF document text
    • http://vereffka.xyz/65775865605wa9n2.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/gisujubolidine/tanax.pdfIn PDF document text
    • https://s3.amazonaws.com/purixifusipelid/21210483329.pdfIn PDF document text
    • https://s3.amazonaws.com/dezajok/94452096696.pdfIn PDF document text
    • https://s3.amazonaws.com/zumomasugipeno/connect_vizio_tv_to_samsung_soundbar_bluetooth.pdfIn PDF document text
    • https://s3.amazonaws.com/dufekifaral/marvel_comics_offline_apk_free.pdfIn PDF document text
    • https://s3.amazonaws.com/megulu/electro_pneumatic_brake_system.pdfIn PDF document text
    • https://s3.amazonaws.com/jezobasit/how_to_reset_kwikset_smartcode_910.pdfIn PDF document text
    • https://s3.amazonaws.com/zolerazowubow/zigopemiwuvupoposaje.pdfIn PDF document text
    • http://bilofudako.onlinewebshop.net/52836627995.pdfIn PDF document text
    • https://s3.amazonaws.com/poguvelefa/530149535.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_off00014e26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14E26 5280 bytes
SHA-256: aa2850383ca03c6d4d8ed607dda552a4db945d2c74e45e26e12668c60d9ebf9d
font_01_sfnt_off00016007.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16007 11688 bytes
SHA-256: 2b584abe5683c84972c343adcca6e99246b9d57a82609e6e04ef0aa6736b4da1

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