Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d64a7b2db785add…

MALICIOUS

PDF

85.5 KB Created: 2020-12-04 00:10:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: b6784f7fc956275dcd85352ee78ef358 SHA-1: 06a2937810a74e7da20e15c5b9e62e6e84759922 SHA-256: 9d64a7b2db785add6222ce38eb6666f87f9bc179f8ea5b66557c2cf409396738
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 6

  • 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 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://traffset.ru/wb?keyword=sad%20shayari%20image%20%20bangla PDF link annotation
    • https://rovufeku.weebly.com/uploads/1/3/4/6/134636625/xetekuwewu_munezusi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://static1.squarespace.com/static/5fc7998c717a0f60c4044aef/t/5fc908f9577f497e189e0cc2/1607010554408/sukoxakazeribipeb.pdfIn PDF document text
    • https://s3.amazonaws.com/dapekufoxiraku/convert_manual_to_automatic_motorcycle.pdfIn PDF document text
    • https://s3.amazonaws.com/wutezigojuxi/alcanos_alquenos_alquinos_ejercicios.pdfIn PDF document text
    • https://s3.amazonaws.com/xefezesebusu/clavier_azerty_physique_android.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc07dde27a199023ab34438/t/5fc470141972c46e3c2bac76/1606709272014/71922348340.pdfIn PDF document text
    • https://s3.amazonaws.com/sikuva/xoxekiza.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe10974e98326c02d7a35c/1606291607936/xolejekafirepapi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf888ef3361272aebb8a1/1606219912396/songs_from_shrek_the_musical_jr.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0f0de5bcb0228a282afe8/t/5fc3c3b07acac6192a335932/1606665137009/58030584146.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/nijemofisejitorabi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/119f7b36-a4fb-4738-98c1-5e3a1007ab37/ibm_thinkpad_t43_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0501128-0781-4b9f-918c-332f20d61b17/tedamukugetidupexabix.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcfbde6a371610b877707f/1606220766544/89523875186.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e92a0a2757459be2ed0b/t/5fc5decd145a8629dc7cbb02/1606803150655/u2_rattle_and_hum.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d6a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6A8 5584 bytes
SHA-256: fa11dcedd4fc02c92f9c253d420f5df7067dfeb8d57e0856a506c56f87dafae4
font_01_sfnt_off0000e974.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE974 2092 bytes
SHA-256: 6e5de5c6bcb7fdd8c5ca0d25823a8f80e6c764803c1b732dbc9c425a5c0f8ea5
font_02_sfnt_off0000f31a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF31A 10300 bytes
SHA-256: 9827f6b93ce35bcb00a32c84f8bbd12977d7ca48b55c48e482c7f9b243cc9e7b
font_03_sfnt_off00011696.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11696 16168 bytes
SHA-256: 1b8ad51c4536609b9a1134745a5660b19bbf06ea1ae1fadc426f4586a7c08a94
font_04_sfnt_off00012bdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12BDF 8572 bytes
SHA-256: e80907fb714dfa0b8ab6eaca511999cbeeaad435bea044571904dc80a771b992