Malicious PDF — malware analysis report

Static analysis result for SHA-256 12a7d1f05db3fbdd…

MALICIOUS

PDF

89.3 KB Created: 2021-03-16 01:39:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5d47d8dd107ed1933f1a041eebd8722c SHA-1: 3520c7e33783320fe7db79e8ec43ef3f79151cd9 SHA-256: 12a7d1f05db3fbdd865d7ae6d3a67b8273fbf96d3c1da99cb3b7b5764f49fd18
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 phishing or trojan threat. It contains an embedded URI pointing to 'resalured.ru', which is likely a malicious domain used to host phishing content or download further payloads. The document body, though heavily obfuscated, appears to be related to the URL's keyword, suggesting a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9904

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=santa+claus+goes+straight+to+the+ghetto+lyrics
    • https://cdn-cms.f-static.net/uploads/4417039/normal_600f2c60ce6f5.pdf
    • https://cdn.sqhk.co/siripeka/giCxr2K/electrical_diagram_symbols_and_meanings.pdf
    • http://bizowokare.getenjoyment.net/crowds_and_power_elias_canetti_espaol.pdf
    • https://cdn-cms.f-static.net/uploads/4465941/normal_5fd785544dbd3.pdf
    • https://cdn.sqhk.co/dutedape/cohfRgd/28859904485.pdf
    • https://cdn.sqhk.co/vubiwete/ie7gh4j/weberu.pdf
    • https://static.s123-cdn-static.com/uploads/4383471/normal_5ff4effde460a.pdf
    • https://cdn-cms.f-static.net/uploads/4491445/normal_602663f6a171f.pdf
    • https://cdn.sqhk.co/waxipefimafa/ha4JjdR/dareraxuzaxexuboj.pdf
    • https://cdn.sqhk.co/rebamomidaw/xgcVKgc/new_messenger_2020_logo.pdf
    • http://fezufizibum.mypressonline.com/kisoriroxe.pdf
    • https://static.s123-cdn-static.com/uploads/4371790/normal_6002d2bd86212.pdf
    • https://cdn-cms.f-static.net/uploads/4421464/normal_602ee1c25de4f.pdf
    • https://cdn-cms.f-static.net/uploads/4451019/normal_604e96d4735c7.pdf
    • https://cdn-cms.f-static.net/uploads/4406771/normal_6010a86bbe887.pdf
    • https://static.s123-cdn-static.com/uploads/4481988/normal_5ffb33dbc6637.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://tikeresepujel.onlinewebshop.net/diagnostic_interview_for_borderline_patients_dib_r.pdf
    • https://153f2bed-3501-4ec5-9468-ed1987511f6d.filesusr.com/ugd/f67134_b051faf4cdb8481cb4f459876d2a3f64.pdf?index=true
    • https://436c154b-1c2d-4c60-9768-ed3a268ef5e1.filesusr.com/ugd/e8e253_ac8fc5efc5024be59412deeaf9ca4b3e.pdf?index=true
    • http://sajitava.epizy.com/new_home_construction_inspection_checklist.pdf
    • http://lanosebezazov.onlinewebshop.net/41905809952.pdf
    • http://kimajuj.epizy.com/free_printable_family_tree_template_5_generations.pdf
    • http://nugafafekovad.epizy.com/employee_performance_evaluation_report_format.pdf
    • http://xidozine.rf.gd/surgical_treatment_for_boutonniere_deformity.pdf
    • http://ritumogadoj.onlinewebshop.net/motepavawaxe.pdf
    • http://jalugegaru.epizy.com/zozubidatu.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_off0000fd44.bin
00c0a141202c10936ceac8b8df9df75720096dbedde9c5fde8d9f3447cbb363c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFD44 2960 bytes
font_01_sfnt_off000107b3.bin
c2fb7dae894e99f1184debd5417c24d4f4c37638e2137d1a0c74196e1bf5b35b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x107B3 5268 bytes
font_02_sfnt_off00011997.bin
1ac3bd5df4e824bfbf1ce128a071d3e9c29b60197c03dd868ba12b75c1917e96		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11997 11440 bytes
font_03_sfnt_off000140fa.bin
b91ebbfc40a94f10b2fcfc4d08542e4cd4fc38dcff43bcfefe5d572695fcce17		 pdf-font-stream PDF embedded font (sfnt) at offset 0x140FA 16160 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.