Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5b85c2711fd442e…

MALICIOUS

PDF

69.6 KB Created: 2021-03-22 17:17:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 8dd310b271f72491fccc06f99111d6fd SHA-1: 5a13e81eb925c0e28cb226e6ca2eb021c28e3d62 SHA-256: f5b85c2711fd442e985fa4c15276fd971aa1df550d52320b9efa0cdd377bdaee
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://mezovuduw.ru/strik?utm_term=what+reading+level+is+fudge+a+mania PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4380680/normal_601ec1d2f1ca2.pdfIn PDF document text
    • http://xanimupa.22web.org/baby_gate_for_stairs_target.pdfIn PDF document text
    • http://zurabutodiriwa.22web.org/mejedepuzewibizu.pdfIn PDF document text
    • https://cdn.sqhk.co/gawisibiw/97ggWjb/patonikaja.pdfIn PDF document text
    • https://cdn.sqhk.co/bogovureg/ksRxgeK/wiwaxafokiresarezuz.pdfIn PDF document text
    • https://cdn.sqhk.co/tirabipati/ghhghjP/jivulitexaxoxumodu.pdfIn PDF document text
    • https://cdn.sqhk.co/xevowuto/pgeujfI/77466749853.pdfIn PDF document text
    • https://cdn.sqhk.co/zekuxemelop/ij46Pgf/7302602931.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416327/normal_6038ecdb94ba2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463262/normal_60011ca55ff3d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446643/normal_601db4110d1b5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498992/normal_5fca109c05735.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bogeguva/modified_barthel_index_scale.pdfIn PDF document text
    • https://s3.amazonaws.com/tozaduliwubega/97195209829.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9efb0583-e5af-4a83-b83f-2533ef8b1947/fagadusi.pdfIn PDF document text
    • https://s3.amazonaws.com/tamobalasu/60648650747.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b45979a-9ab8-4f88-8a64-2c10794724c2/all_the_rules_of_the_internet.pdfIn PDF document text
    • http://losuguv.epizy.com/play_store_apk_app_uptodown.pdfIn PDF document text
    • https://s3.amazonaws.com/dogevazapiwediw/aula_internacional_1_new_edition_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/wetevali/madawizulivanegosu.pdfIn PDF document text
    • https://s3.amazonaws.com/womirofop/informix_4gl_makefile_example.pdfIn PDF document text
    • http://rojegasofibi.epizy.com/bluetooth_earbuds_android.pdfIn PDF document text
    • https://s3.amazonaws.com/netinuwa/export_customs_declaration_form_usa.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d43e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD43E 5396 bytes
SHA-256: 2da9047ff7028c986f777704ed7dd80a9a98430b79409c1e036dcc4aed1c24b9
font_01_sfnt_off0000e680.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE680 10192 bytes
SHA-256: aeb616d8e4a20ac0d5e0ba21d7fe7025a3af635d6392d96cf0b81a8f7e5b07ec

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