Malicious PDF — malware analysis report

Static analysis result for SHA-256 013984a71be513ee…

MALICIOUS

PDF

79.9 KB Created: 2021-02-25 05:40:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 4bd4ef1ba77950e49cc1c5f49dd94da4 SHA-1: 7fa8e9b8e7a1a36a0af57a0242d3e9042732bb53 SHA-256: 013984a71be513ee8fef2ba5acb3c628b1ea989c850dd0b575063dadd929b40a
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document body, though heavily obfuscated, suggests a lure related to a 'secret agent training school award'. An embedded URI points to a suspicious domain, likely serving as a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://jacksth.ru/award?keyword=secret+agent+training+school PDF link annotation
    • http://nijopepeviliwe.22web.org/13280661875.pdfIn PDF document text
    • https://cdn.sqhk.co/zizaratijiga/gcXOGhi/69388732910.pdfIn PDF document text
    • https://cdn.sqhk.co/kukisigafumi/jSUrPTg/75952013863.pdfIn PDF document text
    • http://gifozazupu.iblogger.org/55127747199.pdfIn PDF document text
    • http://rixorevu.getenjoyment.net/machine_learning_with_python_ibm_coursera_quiz_answers_github.pdfIn PDF document text
    • https://cdn.sqhk.co/gujowaxexag/dIv7Ijd/79585193785.pdfIn PDF document text
    • http://dazenad.iblogger.org/19124445585.pdfIn PDF document text
    • http://vakafubetax.iblogger.org/caligula_effect_overdose_true_ending_guide.pdfIn PDF document text
    • http://tipofeliluget.medianewsonline.com/36222521269.pdfIn PDF document text
    • http://lubozamesorox.iblogger.org/wotedar.pdfIn PDF document text
    • http://zotexezedomukuj.iblogger.org/unearthed_arcana_warlock_invocations.pdfIn PDF document text
    • https://cdn.sqhk.co/fodexuxefeba/fygdbFK/chess_endings_for_beginners.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/zifozujiwi/marketing_intermediaries_group_of_answer_choices.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwamoxamo/hearts_of_iron_3_usa_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jazamerijekufol/dolphin_browser_android_2._3._5.pdfIn PDF document text
    • https://s3.amazonaws.com/leteraxewe/birthday_wishes_images_in_marathi.pdfIn PDF document text
    • http://faxiruvud.myartsonline.com/79348575655.pdfIn PDF document text
    • https://s3.amazonaws.com/zarelusipofox/chidinma_fall_in_love_video.pdfIn PDF document text
    • http://dakafatuvuguviz.atwebpages.com/sagowevijokosokunidi.pdfIn PDF document text
    • https://s3.amazonaws.com/fadadedezeker/the_alienist_season_3_hbo.pdfIn PDF document text
    • http://gewumene.epizy.com/fovawosutibo.pdfIn PDF document text
    • http://kagiweluxipo.epizy.com/a_sample_bead_making_business_plan_template.pdfIn PDF document text
    • https://s3.amazonaws.com/xesigeze/exerccio_tabela_peridica.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_off0000fc31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC31 5164 bytes
SHA-256: abb894826a13087cc706d3091c3704e8b8f456441ded0d49f872667f6f1f6bd5
font_01_sfnt_off00010db8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DB8 10636 bytes
SHA-256: e45794efbc093970fdf8d88a47f0774dc33b27498b62d41239fc538325ccece7

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