Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bea21ce52591915…

MALICIOUS

PDF

78.1 KB Created: 2021-04-11 12:24:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 62152939ceea556868dda034b677d695 SHA-1: 75986480ecd34a0c776d4497a3876cb58a7f5af6 SHA-256: 2bea21ce525919153a9d7a8011c64e79a17cf905f1530abe9178bb92a25da187
126 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an external URI pointing to 'lozipotod.ru', which is likely the primary destination for the attack. The document body, though heavily obfuscated, suggests a lure related to 'david goggins famous', indicating a social engineering tactic to entice clicks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://lozipotod.ru/strik?utm_term=why+is+david+goggins+famous PDF link annotation
    • https://cdn.sqhk.co/rekutadis/ijiCDge/kuzawiwezumesanu.pdfIn PDF document text
    • http://kapovulup.mywebcommunity.org/70538229066.pdfIn PDF document text
    • https://cdn.sqhk.co/tenotitur/Cihbtxi/gmc_stepside_truck.pdfIn PDF document text
    • https://cdn.sqhk.co/kitaparek/Xiaw2eS/craft_battle_royale_fps_free_shooting_games_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/movijomo/Bhhdwhe/horse_jumping_games_download.pdfIn PDF document text
    • http://worabipupe.mypressonline.com/laridaxavivizovaborup.pdfIn PDF document text
    • https://cdn.sqhk.co/bitomasijelo/LjeGjfA/98339972932.pdfIn PDF document text
    • https://cdn.sqhk.co/kugugofawaz/OOhaijd/veviwilunapi.pdfIn PDF document text
    • https://cdn.sqhk.co/ruxuvedije/j0xzsHe/79903641264.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/62b2e0d4-8c4b-44f4-a574-561ee3068eb7/xomiwufizibinaladabasivi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec818145-9727-408f-9250-7c8bffe5cba3/35451586434.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89918b82-d122-42ac-a060-899220177a84/place_value_worksheets_4th_grade.pdfIn PDF document text
    • https://86f5e18a-8766-4ae7-b9bf-31430b627380.filesusr.com/ugd/911c12_7413bae1a01444c8aa28ff2ccb22a7ef.pdf?index=trueIn PDF document text
    • http://nevurewajarip.epizy.com/kejuxoduralomanetubazubed.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b28b55e7-30f6-41be-9cf5-093a2dee060e/83658536130.pdfIn PDF document text
    • http://lejibunigazaxa.epizy.com/spongebob_krab_borg_music.pdfIn PDF document text
    • http://davinawoguzag.atwebpages.com/14850325530.pdfIn PDF document text
    • http://jadizugexagosor.rf.gd/gadomakoxatojerimusikaj.pdfIn PDF document text
    • http://kogopixipinal.epizy.com/15489723714.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ff93e5a-9e67-4788-b947-260c438f84f2/17852889740.pdfIn PDF document text
    • https://8dac4d01-2cd1-45d2-8b5f-6005f802adc9.filesusr.com/ugd/1f96ce_bc77b53b5447408dbdf6ef77dce14b32.pdf?index=trueIn PDF document text
    • https://0c2a99dd-71fd-4a0d-b96f-672cfa785c21.filesusr.com/ugd/515c54_972fc6ff25ba47c6b6ef55819fe9ff29.pdf?index=trueIn PDF document text
    • https://ebba3e40-d49f-4cc8-b137-373bb1124918.filesusr.com/ugd/384ea4_ea002be9fe884c108b5239f3e1ddc29a.pdf?index=trueIn 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_off0000f256.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF256 5368 bytes
SHA-256: 8a6d57e43f4ba8db2c9cb03b3fc50fbb576aabc3c71d0bb45f75fd1559ad321d
font_01_sfnt_off00010494.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10494 11368 bytes
SHA-256: c2b3bf01ba9e3fb4c95c6f49c7e912825ebacfb84b52a2f9484c50ccfcad2e81