Malicious PDF — malware analysis report

Static analysis result for SHA-256 08d8dbbec733160d…

MALICIOUS

PDF

68.5 KB Created: 2021-04-01 19:43:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bbb89824e3ce41f7701c7d4c63165fc1 SHA-1: de4299e9022d92da8b002fecf2b4d4448d3c5d54 SHA-256: 08d8dbbec733160d7a51bf5896071194774960a034198d5b215492439ef8a7bb
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a malicious domain, likely intended to trick the user into visiting a phishing site. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to lead users to malicious content, potentially exploiting PDF vulnerabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://midufefew.ru/123?utm_term=fox+news+wsj+editorial+report
    • https://megidawuxuta.weebly.com/uploads/1/3/4/7/134729580/9497911.pdf
    • http://shtangye.xyz/bleach_mobile_3d_quiz_answers11ter.pdf
    • https://jovigazever.weebly.com/uploads/1/3/1/6/131637362/ladojevejili.pdf
    • http://nufapivevavenak.22web.org/beginners_movie_free.pdf
    • https://cdn-cms.f-static.net/uploads/4366659/normal_60513cbba3aff.pdf
    • http://onlinetiser.website/nowoladipa3vp5.pdf
    • http://helplnstagramoffice.com/gawonunufosuvobamoroxukuf0ced.pdf
    • https://static.s123-cdn-static.com/uploads/4529087/normal_5ffb61225b2c5.pdf
    • https://kokujefep.weebly.com/uploads/1/3/1/4/131409677/65be074.pdf
    • https://loraxero.weebly.com/uploads/1/3/4/3/134332649/1045594.pdf
    • https://static.s123-cdn-static.com/uploads/4462046/normal_60020f0a63b3a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fumitosavewi.rf.gd/wuwuzate.pdf
    • http://sudebavegubud.epizy.com/19971687988.pdf
    • https://uploads.strikinglycdn.com/files/4f4cc303-fce6-4391-adf0-de2226597f36/what_are_the_theories_of_abnormal_psychology.pdf
    • http://nasakil.rf.gd/tisubapagenajomorozoru.pdf
    • http://dikavara.epizy.com/difference_between_compiler_interpreter_and_assembler_in_tabular_form.pdf
    • http://rutozaduv.epizy.com/firilajotijawixob.pdf
    • http://newitipalude.rf.gd/58141489289.pdf
    • https://uploads.strikinglycdn.com/files/35796abf-4768-4886-ae08-20c4a8a611cd/fire_and_blood_series_hbo_cast.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce85.bin
b5c750da97a0ff9aa5ef7b8627c68e08b446d2493dbb2c0d6bc1225e0e8c2596
pdf-font-stream PDF embedded font (sfnt) at offset 0xCE85 5144 bytes
font_01_sfnt_off0000e029.bin
c992663b0849612cfee7e30ce49ae794836ab0b048c5a0eb9b9facbb5add233a
pdf-font-stream PDF embedded font (sfnt) at offset 0xE029 10668 bytes