Malicious PDF — malware analysis report

Static analysis result for SHA-256 346017174ac5bfb1…

MALICIOUS

PDF

78.6 KB Created: 2021-04-11 01:30:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: aebe2b2dd897a8f8da108994172967e9 SHA-1: 51d80f407f1dbdb228d69d9d70ec3d1f5dfb7828 SHA-256: 346017174ac5bfb1c0a5d0b9b701bfb3dc2080b8034fe09f8539db0b25a968ba
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 0.9995

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://dugedepap.ru/strik?utm_term=thinking+maps+flow+map PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4393018/normal_5ff773c8f1878.pdfIn PDF document text
    • http://setoxofabawa.22web.org/castle_of_glass_lyrics.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378153/normal_6007577471b17.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379842/normal_606cfad3cc63e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407318/normal_5ff2257793355.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490138/normal_5fe17e78c8ff2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://riboparewi.rf.gd/dipovizetojewojozofetik.pdfIn PDF document text
    • http://lejarojat.rf.gd/fundamentals_of_heat_and_mass_transfer_7th_ed_incropera_solution_manual.pdfIn PDF document text
    • http://pimubejat.epizy.com/romilez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27983bea-a0b1-41f9-8a93-0cbf5036ffca/bigoguremaj.pdfIn PDF document text
    • https://s3.amazonaws.com/pazovugal/calibration_procedures.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3df8c68-c8cb-48c2-b73a-c58078cf6e7d/what_is_ho_scale_in_inches.pdfIn PDF document text
    • http://zanukabijegur.rf.gd/66183940619.pdfIn PDF document text
    • https://s3.amazonaws.com/rizezobabub/govofitakas.pdfIn PDF document text
    • http://julisanusifi.rf.gd/johnson_90_hp_v4_outboard_water_pump.pdfIn PDF document text
    • https://s3.amazonaws.com/viwoxuz/firase.pdfIn PDF document text
    • https://s3.amazonaws.com/vexosafugunu/fetal_pig_digestive_system_diagram_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/gozifep/salesforce_lightning_platform_events.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e456618e-6c0c-49af-b8ba-1a214c57980c/19898203504.pdfIn PDF document text
    • https://s3.amazonaws.com/tobojelusiwi/carli_bybel_x_missguided_black_embellished_jumpsuit.pdfIn PDF document text
    • https://s3.amazonaws.com/sizabo/thundercats_cartoon_full_episodes.pdfIn PDF document text
    • http://xadujagi.epizy.com/5519071340.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ebd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBD5 4916 bytes
SHA-256: 10a678ef31570ffdd7d98cdd7245065d7b83a32ecba41c629b13f694cbf2c00e
font_01_sfnt_off0000fc59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC59 10228 bytes
SHA-256: 9b9287d714d97c3c62321bced27b835d6c15b1385af66f73b912bfafd84022fa
font_02_sfnt_off00011f5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F5B 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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