Malicious PDF — malware analysis report

Static analysis result for SHA-256 3568813afeaaa3ca…

MALICIOUS

PDF

75.2 KB Created: 2021-05-09 11:45:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 5a5f362152a066ccca50cb59fed8d554 SHA-1: 94e281003f366a13837873e1f22be8609eee4862 SHA-256: 3568813afeaaa3ca8e529991b737f48a7c4871ccd0a7d9ede65ac602b999ecff
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 0.9992

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://lozipotod.ru/strik?utm_term=what+is+the+difference+between+pmf+pdf+and+cdf PDF link annotation
    • https://cdn.sqhk.co/ximirujusuxo/dwzQgik/la_fitness_personal_trainer_application.pdfIn PDF document text
    • https://cdn.sqhk.co/fosigigamef/hfhdheg/zara_larsson_lush_life_age.pdfIn PDF document text
    • https://cdn.sqhk.co/moserusoba/eKCiaO8/shades_of_blue_episode_guide_season_1.pdfIn PDF document text
    • https://cdn.sqhk.co/zenegiwowi/Rligjdl/xonutoxix.pdfIn PDF document text
    • https://cdn.sqhk.co/lusoxepero/hfjcdhd/5589224114.pdfIn PDF document text
    • https://cdn.sqhk.co/dipopoji/dlikHif/the_greatest_hits_of_the_70s.pdfIn PDF document text
    • https://cdn.sqhk.co/rovonoset/eMGjcji/nufixuxodaw.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/bisapovepizaj/bitopet.pdfIn PDF document text
    • https://s3.amazonaws.com/xofalepelala/wakejoduxomemo.pdfIn PDF document text
    • https://s3.amazonaws.com/penale/bidadari_tak_bersayap_cover_jeje.pdfIn PDF document text
    • https://s3.amazonaws.com/xukirizugukugi/raroxixexolakixek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f6132ca-9299-49cc-be92-202327ad55ea/vejozanulenunabu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6fbf945a-26f5-4225-9fff-dc1440a32e03/what_is_the_meaning_of_maiden_voyage.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1b3f895-2be4-4fc7-8fa3-fc61974b1496/61915102866.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/26940986255.pdfIn PDF document text
    • https://s3.amazonaws.com/kiremefegonar/90151312912.pdfIn PDF document text
    • https://s3.amazonaws.com/vapite/cydia_without_jailbreak_or_computer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93193299-c236-4514-af7b-b8922e77e8d2/vamewadagimowax.pdfIn PDF document text
    • https://s3.amazonaws.com/lusabifef/carrion_crown_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kotodur/31573897709.pdfIn PDF document text
    • https://s3.amazonaws.com/toguvaju/bancassurance_in_ghana.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31187510-e2a9-4732-8121-2863e38d4409/is_there_such_a_thing_as_a_wine_belly.pdfIn PDF document text
    • https://s3.amazonaws.com/roxawo/are_hannibal_and_clarice_in_love.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_off0000e668.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE668 5608 bytes
SHA-256: 3290cd517554b137ca1f16b7bab92138542ffbeace25d77bc16cd9dcba14e013
font_01_sfnt_off0000f967.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF967 10956 bytes
SHA-256: 36be19f739a05b25af55300426dd3a9a3088dc1858b61c1fa9d932c81fb8c801

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