Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2eae8375fd9ac5e…

MALICIOUS

PDF

97.8 KB Created: 2021-03-29 03:21:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 938961907e4d341e5b3ee30413d136d1 SHA-1: e8eec822a6a0c7e82f102056f3b3fb0c2272ebb7 SHA-256: b2eae8375fd9ac5e3538b6c70cf10169f51f5dfc9adadd84c72518ccd4cbbc9a
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL `https://maypoin.ru/wix?keyword=rev+transcription+style+guide+v4.0.2` suggests a phishing or credential harvesting attempt disguised as a document. While no scripts were explicitly extracted, the PDF structure and heuristic firings point towards a malicious document designed to redirect users to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

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://maypoin.ru/wix?keyword=rev+transcription+style+guide+v4.0.2
    • http://bonus332.site/pimaladamivolofoligmzafj.pdf
    • http://reduslim-officialsite.site/famegupolinaruzofejikuuhc3.pdf
    • http://cashtanks.fun/jamerodowopagixaw17kpt.pdf
    • http://glossywp.online/jujibuvufiavxdv.pdf
    • http://ketrovk.xyz/10020533396c88rh.pdf
    • http://svoydvalend.xyz/what_is_the_importance_of_sound_energy4ited.pdf
    • http://fullstacket.online/17452715431jhcn0.pdf
    • http://dvestideyli.xyz/what_is_dbt_therapy_for_borderline_personality_disordere5fcq.pdf
    • http://coins24h.com/457277406881z5vq.pdf
    • https://pidexijot.weebly.com/uploads/1/3/5/3/135316959/5532371.pdf
    • https://libadelalisam.weebly.com/uploads/1/3/4/5/134579317/nusasimibi.pdf
    • http://metryck.info/214755629105q1vn.pdf
    • https://sowuritujozefa.weebly.com/uploads/1/3/4/6/134621612/aed20942.pdf
    • http://dkblogin-de.best/2011_dodge_avenger_recallbt36o.pdf
    • https://velonifiwivuli.weebly.com/uploads/1/3/0/7/130739758/jujegebiran-geliwisilid.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/ladojenefe/badoo_premium_apk_full_free.pdf
    • http://neduweleviwov.rf.gd/bedtime_stories_for_babies_to_fall_asleep.pdf
    • https://s3.amazonaws.com/magapeguwabe/liberalisme_dalam_hubungan_internasional.pdf
    • http://padadubijimesib.epizy.com/checkpoint_firewall_architecture.pdf
    • http://dilutevanu.epizy.com/developing_effective_assessment_in_higher_education_a_practical_guide.pdf
    • http://fafebexa.epizy.com/11382217565.pdf
    • https://s3.amazonaws.com/xezonijida/best_email_template_plugin_wordpress.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/
    • https://savannah.gnu.org/projects/freefont/
    • http://www.gnu.org/licenses/
    • http://www.gnu.org/copyleft/gpl.html
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f694.bin
4639dacbca6e3e9417d04b8873a814d7ef35d4f2dcd05935e8766d5c4c6df041		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF694 6712 bytes
font_01_sfnt_off0001074f.bin
1daccd5d5a5e861f02347cf02a18b511f6e8cc761e760a9ab3d176a2798b51a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1074F 4732 bytes
font_02_sfnt_off000117f7.bin
b8507398b1340ee93ae09a18cd01c6b56130dc13e5e01e24fbc884782d123e4e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x117F7 5804 bytes
font_03_sfnt_off00012be4.bin
05faba8de60f59e4a6b6f4ae15b5c2ba8c663dbea46819996e4b504ad58e1b09		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12BE4 15568 bytes
font_04_sfnt_off00016011.bin
3ced8158bab2a6e08235a0ee56ad544b27369df773f9b54fb207acd5c1476a36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16011 16736 bytes

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