Malicious PDF — malware analysis report

Static analysis result for SHA-256 7542bd1c19798935…

MALICIOUS

PDF

75.4 KB Created: 2021-03-31 18:58:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: d1af74971fd6d4cdfadfa4a182335e8f SHA-1: 5a8b887698fbf97d0112407e2d701ff3ac390834 SHA-256: 7542bd1c1979893574d5c4234c2e3603a87faecb05b791b7d59d8dce2c878ec8
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a password-protected-archive lure. 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 0.9997

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
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://ponafet.ru/strik?utm_term=seagate+goflex+home+default+admin+password PDF link annotation
    • http://zdsshop.top/kinubamikinwyukl.pdfIn PDF document text
    • https://cdn.sqhk.co/kefesizo/biigiWU/how_to_make_origami_pro_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/retirijozi/Sjaghsp/people_are_awesome_2019.pdfIn PDF document text
    • http://volosaty100.xyz/baldurs_gate_3_release_timelinejepy1.pdfIn PDF document text
    • http://akb54.ru/the_great_awakening_book_summarysmeht.pdfIn PDF document text
    • http://copyrightviolationcenters.com/how_to_connect_2_sound_mixers_together9ze6b.pdfIn PDF document text
    • https://cdn.sqhk.co/pefevepufi/XXojbhc/party_city_store_locations_nj.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/vuxalirudidel/supomulibizisumuziku.pdfIn PDF document text
    • https://s3.amazonaws.com/jukezeluf/45267011014.pdfIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/will_there_be_any_more_harry_potter_movies.pdfIn PDF document text
    • https://s3.amazonaws.com/rolefosiju/harp_sheet_music_hallelujah.pdfIn PDF document text
    • https://s3.amazonaws.com/mejifavo/gijirepozuwo.pdfIn PDF document text
    • https://s3.amazonaws.com/tamobalasu/58793436369.pdfIn PDF document text
    • https://s3.amazonaws.com/woxewiwupir/everything_i_have_never_told_you.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a226dddc-e03e-441c-a564-4bce6b9e569f/the_secret_life_of_the_american_teenager_episode_17.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94463756-58c4-44fe-aeaa-1ef9f84fec50/59447141227.pdfIn PDF document text
    • https://s3.amazonaws.com/xufaxoferugod/competency_example_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/460a6020-3291-4181-9b46-8ea423c19913/71737785106.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/apollo_twin_mkii_duo_vs_quad.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/mary_poppins_chimney_sweep_little_rock.pdfIn PDF document text
    • https://s3.amazonaws.com/zumezeviwakiz/76521878453.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_off0000e5e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5E5 5720 bytes
SHA-256: 09aacaa7929b50b6e219cc3d21e4997a0aac229ae92c04b87f35cca6b396af4a
font_01_sfnt_off0000f94a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF94A 10900 bytes
SHA-256: b712dc5b07cf087ae0076d5036213cd61fc707c045ca5caffb59b971c6652b92

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