Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a2dd6e2efcf2046…

MALICIOUS

PDF

77.0 KB Created: 2021-03-13 13:26:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a8e850400bd1ec0b4d5a1af819aa573b SHA-1: 5a6332c85d1bd6333e49dc4286ca8cfc3272acfa SHA-256: 1a2dd6e2efcf2046d6215699a7c5bb3946f1bd8049a88c8bab72b75a0b061829
104 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The document body contains a lure related to an 'accident report form' and includes an external URI pointing to a suspicious domain, likely intended to deliver a malicious payload or conduct phishing. No scripts were extracted, but the presence of external URIs and the ML/AV detections strongly suggest a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://soxebez.ru/award?keyword=accident+report+form+12+pdf
    • http://trackcreditscore.info/cien_aos_de_soledad_ver_pelicula_onlinexerdr.pdf
    • http://nubatevujonuw.mygamesonline.org/forward_start_option_pricing.pdf
    • http://bestcreditcheck.info/2002_polaris_sportsman_400_top_speedetwfg.pdf
    • https://cdn.sqhk.co/fabunavaxa/Xie4qW0/monster_race_results_today.pdf
    • http://kreativoblako.com/69262485674b4l3z.pdf
    • https://static.s123-cdn-static.com/uploads/4369915/normal_5fce413c332ef.pdf
    • http://groshyk.site/mawibejuxerigotifulugudex1i60m.pdf
    • https://cdn-cms.f-static.net/uploads/4469355/normal_600cf13c4d8ca.pdf
    • http://jotusimemirido.sportsontheweb.net/can_you_replace_the_ceramic_top_on_a_stove.pdf
    • https://cdn.sqhk.co/lowimipofevu/aihihyO/my_talking_angela_infinito_2019.pdf
    • http://dkmz1.club/wekepugezovowotamuwegf7x3x.pdf
    • https://cdn-cms.f-static.net/uploads/4490122/normal_6028679278429.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/10e42fea-329e-4843-9f04-b846a50f7735/woziwexem.pdf
    • http://pelebirepopo.onlinewebshop.net/80173554081.pdf
    • https://uploads.strikinglycdn.com/files/f95ba4a0-2886-4d43-8cb3-2c7b2e78b56d/golden_sonic_fnas_4.pdf
    • https://s3.amazonaws.com/pokorevalaxex/nesco_18_quart_roaster_oven_turkey.pdf
    • https://uploads.strikinglycdn.com/files/83c0daf2-1bdd-43b2-b632-d5e7a5a58f4f/ditad.pdf
    • https://s3.amazonaws.com/tuxenipup/midabuwiwezibixefaxale.pdf
    • https://s3.amazonaws.com/tomaxade/nigudetajunatowat.pdf
    • https://s3.amazonaws.com/juzinaramip/sheet_metal_12_gauge_to_mm.pdf
    • https://s3.amazonaws.com/mixanaz/wonewarojufifu.pdf
    • https://uploads.strikinglycdn.com/files/297fcfa2-2679-48e8-a5ec-9b62bd604f7d/wazor.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f06e.bin
8220d9f0f198c0141d5ef7149ffbf24f1df2357a79b9bff13faefa99aa96e861		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF06E 5056 bytes
font_01_sfnt_off00010197.bin
8a7b7465f6cb49d5b9f812e8878858678402607d66e45ba5af41ba7891a5493c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10197 10868 bytes

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