Malicious PDF — malware analysis report

Static analysis result for SHA-256 00b2f740e1019483…

MALICIOUS

PDF

71.9 KB Created: 2021-02-27 15:06:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 75e805e0414d52342d268cfef1d07258 SHA-1: d773e8c7ca521b848e874f4f61e7ff4d2446d101 SHA-256: 00b2f740e1019483cd2e24a2acc96d9e6c712c5a2849096b7b6a7cc8d265dd98
96 Risk Score

Malware Insights

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

The file is a PDF document flagged by ClamAV as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to host malicious content or redirect the user. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the presence of external URIs suggests an attempt to download further payloads or redirect to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://golowaki.ru/wix?keyword=family+nurse+practitioner+volume+1+review+and+resource+manual PDF link annotation
    • http://puveputado.sportsontheweb.net/tenosezidubuv.pdfIn PDF document text
    • https://cdn.sqhk.co/fukonovum/d57lhjE/torn_acl_and_meniscus_surgery_recovery.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408992/normal_5fc7a4a239c91.pdfIn PDF document text
    • https://cdn.sqhk.co/nikofejujel/hg6ggWO/91423976448.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378153/normal_6031da7b3b665.pdfIn PDF document text
    • http://watenaz.iblogger.org/weather_report_la_jolla_california.pdfIn PDF document text
    • http://scriptbook.xyz/tumevisixuvazilisujenu1nwi1.pdfIn PDF document text
    • http://zanartcc.net/the_way_to_love_anthony_de_mello_quotestydjw.pdfIn PDF document text
    • https://cdn.sqhk.co/tazifawixax/jbAia0k/religion_in_china.pdfIn PDF document text
    • https://cdn.sqhk.co/kukisigafumi/u10jhjg/run_ronnie_run_special_shoes.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/xesigeze/tivipudokel.pdfIn PDF document text
    • https://s3.amazonaws.com/ronatiduzoxij/similop.pdfIn PDF document text
    • https://s3.amazonaws.com/degagaziv/bosch_microwave_repair_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/lebejos/beeswax_sheets_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/perurulexi/why_did_bantu_migrate.pdfIn PDF document text
    • http://puwepubofixa.epizy.com/afghanistan_travel_guide.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_off0000db9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB9C 5480 bytes
SHA-256: 3b56f8a350caa2a1535340efc36220d0f50c56aa748dfdee1836f6fee526010f
font_01_sfnt_off0000ee4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE4C 10084 bytes
SHA-256: aa0fd1e35e4d99f945b1940580deaa956c09bed1c5a0769ce83e47b2023a1289

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