Malicious PDF — malware analysis report

Static analysis result for SHA-256 19f0bd10d1a973b1…

MALICIOUS

PDF

91.7 KB Created: 2021-03-17 04:27:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 06c27a61c1617391f92ccc81d93ec86c SHA-1: 74ecf0b612878735101c6a3216851b9c43541d18 SHA-256: 19f0bd10d1a973b1683f200c777487816b364199d2c3fff7510e272dfaa717eb
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 phishing or trojan payload. It contains an embedded URI pointing to a suspicious domain, likely intended to host or redirect to a malicious payload. The document body, though heavily obfuscated, suggests a lure related to 'dilation worksheet answers'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9898

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://xezojetit.ru/wix?keyword=6.7+dilation+worksheet+answers
    • http://solimurelorobiv.iblogger.org/ledoz.pdf
    • http://limevekobo.iblogger.org/blend_synonym_formal.pdf
    • https://cdn.sqhk.co/zezoxomop/eyJhbJH/biruxejoxa.pdf
    • https://cdn.sqhk.co/bitizulokiva/CDjeNid/6808343279.pdf
    • https://cdn.sqhk.co/dugelabomaw/dzhbhj9/56376349823.pdf
    • https://cdn.sqhk.co/pugudanirav/haYsyIG/honda_gx200_engine_price.pdf
    • https://cdn.sqhk.co/tixukiko/haQijjc/highway_rider_extreme_motorbike_game_3d_hacked.pdf
    • http://fomilexavekol.22web.org/small_business_subcontracting_plan_template_2017.pdf
    • https://cdn.sqhk.co/vuxevabuvix/eB5hfGq/flashlight_on_my_samsung_phone.pdf
    • https://cdn.sqhk.co/zikufivol/ijfikXk/fantasy_football_training_camp_news.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/labitajaxatufib/jitterbug_alcatel_one_touch_manual.pdf
    • http://joxumokuri.epizy.com/76964168501.pdf
    • https://s3.amazonaws.com/bulolimepol/arqueologia_procesual.pdf
    • https://acfc0e76-311d-46af-9c13-f46c112eb424.filesusr.com/ugd/f90bad_d6a8b74955944aa89d762b1aa340b95d.pdf?index=true
    • http://vegozamefokim.rf.gd/xunoredofowene.pdf
    • https://s3.amazonaws.com/dufekifaral/petelivipi.pdf
    • https://5405d108-7f1e-482b-a10c-e06f62b7505d.filesusr.com/ugd/d941b1_9670cb0ab5324d4391383c739d08786b.pdf?index=true
    • https://d89d6b52-6e76-4e18-bccb-bd7428cfddad.filesusr.com/ugd/02beb7_43cbc4a27c2e4e06b6518ca61d4283e9.pdf?index=true
    • https://a7da3e60-63c8-46c1-a846-eab7df628ed2.filesusr.com/ugd/bba345_6f6ab03966a04bd7ab2bb5a8fceb92b6.pdf?index=true
    • http://jipinasin.epizy.com/64781607672.pdf
    • http://tikuvusupatel.rf.gd/wibitul.pdf
    • http://jivafikoru.rf.gd/22369980104.pdf
    • https://s3.amazonaws.com/waxegatulo/jurassic_world_the_game_apk_unlimited.pdf
    • https://s3.amazonaws.com/wegemebufojafak/91306595801.pdf
    • http://bizewegomakak.rf.gd/tixaxafodotofekubiv.pdf
    • http://musowafotoxipid.epizy.com/constant_contact_email_templates.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_off000102ec.bin
c0307c0eecad191f0540d4e0fa88f457ea71dcc712e6cb3b2d107e438eb1fd4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x102EC 2984 bytes
font_01_sfnt_off00010d98.bin
4a4f98b0aa0b26d292bea75da0d6d04bb4f0d52f08a8d699618cbd577d1411ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10D98 5240 bytes
font_02_sfnt_off00011f85.bin
4c38e0bb0ec81961d0631232225120df06f47f0928eb3ff5e147b0fffde1811b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11F85 12856 bytes
font_03_sfnt_off000149ac.bin
a14cb5d6baf55a3a22460a7982ba04c4cf2e1422547d807a22139856b5951cfe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x149AC 16524 bytes

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