Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6012a5fe61c29de…

MALICIOUS

PDF

87.7 KB Created: 2021-03-19 23:20:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c3365d2f31e429c2ce74a7f9c93883f SHA-1: deb3d389d504de284474857611ed36bb49589b1e SHA-256: a6012a5fe61c29de76e7c190c7c931c5d47970da574e4f7d591390bd412a0e81
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into downloading malware or visiting a phishing site. The document body, though heavily obfuscated, contains text related to the embedded URI, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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://leonvi.ru/wix?keyword=unblocked+swords+and+sandals+2+full+version
    • http://hurricane1.space/503987781347djeb.pdf
    • https://sazulolako.weebly.com/uploads/1/3/1/4/131453808/9142005.pdf
    • http://ctuxuu.com/48989343860enu6b.pdf
    • http://azalea.store/maxi_cosi_mico_ap_limited_edition_isofixofm7f.pdf
    • http://autolombardpro.ru/14413181414qhvyl.pdf
    • https://konezevebul.weebly.com/uploads/1/3/1/3/131381420/2094895.pdf
    • http://pokemonrivals.online/12659280629q7ivb.pdf
    • https://bamutemo.weebly.com/uploads/1/3/2/6/132681362/vuxaloduxu.pdf
    • https://revawovaweku.weebly.com/uploads/1/3/4/0/134013066/d1637499.pdf
    • http://titoto.xyz/definicion_de_derecho_procesal_civil_autores5kkgx.pdf
    • http://siondez.ru/mozipawotejal30lc5.pdf
    • https://pukakiliratof.weebly.com/uploads/1/3/4/7/134768090/1265410.pdf
    • http://copytoshka.ru/good_things_come_to_those_who_wait_quotes49iod.pdf
    • http://copyrightsupporthelpcenter.com/7059784583870wsv.pdf
    • https://jawifeguviweti.weebly.com/uploads/1/3/2/3/132302916/vokarijedilaligopam.pdf
    • http://babysampler.com/zoology_lab_manualr1yo2.pdf
    • http://reestr.site/42789457556byntt.pdf
    • http://xrootunited.com/wegitakuzitabisoxifixaszvr8.pdf
    • https://zevupumogejaju.weebly.com/uploads/1/3/2/8/132814041/wejufi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/949393f5-f527-4186-96bc-9c5197cc4007/miguel_serrano_quotes.pdf
    • https://uploads.strikinglycdn.com/files/aaa2dfd1-2880-4a76-9be9-daba3deda2ae/your_soul_is_a_river_free_download.pdf
    • https://uploads.strikinglycdn.com/files/5d13280e-37d8-4119-a154-fbddea6550b2/dungeons_and_dragons_5th_edition_classes_and_races.pdf
    • https://uploads.strikinglycdn.com/files/583fa266-3935-479c-ab31-fee2f5bff3f2/the_art_of_racing_in_the_rain_chapter_19_summary.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb28.bin
3e7203e2d0bbbd4506f4c24052bc97108672807a0a7e1ca026a73f6c93932953		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEB28 4036 bytes
font_01_sfnt_off0000f968.bin
b202094a262a43564423e0398ce81280ff1915c68cce9ec2766744352d6fd097		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF968 5496 bytes
font_02_sfnt_off00010c46.bin
8fe66ea684a86e04e3d5c0f607c0b2c8718abf331970ca62dc41484162f2c6fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C46 14464 bytes
font_03_sfnt_off00013ab0.bin
31aa257675234f953cb39254c73a0c002637764ec2691c470e0912636c3685cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13AB0 16204 bytes

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