Malicious PDF — malware analysis report

Static analysis result for SHA-256 02ff89d7d1247bee…

MALICIOUS

PDF

70.6 KB Created: 2021-03-03 13:15:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 75c65b9f874181599c4933fcb5fdef9d SHA-1: 3f1ca10374ff3fd845bdfe41c7a2e9fd362f6229 SHA-256: 02ff89d7d1247beeed9bb5e9a0157f2018b1827be5f9826892050dcdd9abbb49
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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=transport+processes+and+separation+process+principles+5th+edition+solution+manual PDF link annotation
    • https://kunimagim.weebly.com/uploads/1/3/4/6/134608209/978843.pdfIn PDF document text
    • https://xekukagakodepa.weebly.com/uploads/1/3/3/9/133999272/4608872.pdfIn PDF document text
    • http://xejopegig.mypressonline.com/bolens_parts_uk.pdfIn PDF document text
    • https://zuvimetuna.weebly.com/uploads/1/3/5/3/135304981/jidabew-rozajeviputep-turijo.pdfIn PDF document text
    • http://giwapozolaleg.mypressonline.com/dubofamumedovomoj.pdfIn PDF document text
    • http://medazuxa.mywebcommunity.org/lenovo_ix2-dl_hard_reset.pdfIn PDF document text
    • https://mivodijabid.weebly.com/uploads/1/3/4/7/134732330/1037220.pdfIn PDF document text
    • https://pubedazemel.weebly.com/uploads/1/3/4/8/134870130/56f5958d00.pdfIn PDF document text
    • https://tulopesonu.weebly.com/uploads/1/3/5/3/135318186/b4ec0549901f.pdfIn PDF document text
    • https://moxigowa.weebly.com/uploads/1/3/0/8/130814106/d901310b55f.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/fapaga/nizisusuvoto.pdfIn PDF document text
    • https://s3.amazonaws.com/kufazete/putudi.pdfIn PDF document text
    • https://s3.amazonaws.com/xufaxoferugod/answering_a_question_with_a_question_word.pdfIn PDF document text
    • https://s3.amazonaws.com/perurulexi/brake_caliper_guide_pin_bushing.pdfIn PDF document text
    • https://s3.amazonaws.com/nunakixuma/refigitogenipisojawa.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/super_mario_bros_speed_run_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/lekelepowo/67573307517.pdfIn PDF document text
    • https://s3.amazonaws.com/feliso/those_who_wait_haley_cass_download.pdfIn PDF document text
    • http://gafodix.myartsonline.com/how_to_give_a_compelling_interview_presentation.pdfIn PDF document text
    • https://s3.amazonaws.com/dipafuxe/block_calls_on_my_android_phone.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_off0000d768.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD768 5388 bytes
SHA-256: 9ffbc662c0cc9ef0c8a0ebfda4772a190e1804751c6887b53b1c7e22067bdb41
font_01_sfnt_off0000e98a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE98A 10108 bytes
SHA-256: 9c39d62bea792ced3bfb745f8db2e62fd025f4a0e778b873ec8f5e50358ebfb2