Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd492923c8494983…

MALICIOUS

PDF

71.9 KB Created: 2021-02-22 17:46:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 0ba78e46ba5108e49b24294ff7024ce3 SHA-1: 8811d1504bc678817632ba78f465dd3c5fe5175f SHA-256: dd492923c849498370079b3b160467edb7a21e3bdea24838bd3f31b83f44d0b1
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/wix?keyword=raymond+franz+crisis+of+conscience+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4392666/normal_6015593d515c0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380863/normal_5fec474a2755e.pdfIn PDF document text
    • http://nakidki-alkantara.xyz/naponajafenexomati8ci40.pdfIn PDF document text
    • http://paypallsecurity.com/439550548116mx7n.pdfIn PDF document text
    • http://itfamily.info/scots_contract_law_basicsx35p0.pdfIn PDF document text
    • https://cdn.sqhk.co/posojuvapono/hWjf0gh/lethal_weapon_4.pdfIn PDF document text
    • https://cdn.sqhk.co/kadeposamo/bhciajj/passcode_lock_screen_bypass_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/sadopore/HajgKgf/penguin_stardew_valley.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374024/normal_603282aa42601.pdfIn PDF document text
    • https://cdn.sqhk.co/xenivoronizu/UhbxidV/rotenipenazuwaviw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369310/normal_5ffc4eae6417c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471082/normal_5fc5d837918f8.pdfIn PDF document text
    • http://domastmsk.space/37150491369jfxid.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485579/normal_6005b1266f3d3.pdfIn PDF document text
    • https://cdn.sqhk.co/tavedikovo/Ker8Gic/i_m_not_touching_you_movie_quote.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493876/normal_601fac864e492.pdfIn PDF document text
    • http://blaugrana.ru/battlefield_5_code_xbox78rmf.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/kukupunopedon/big_letter_d_template.pdfIn PDF document text
    • https://s3.amazonaws.com/tadevewuju/wupusatute.pdfIn PDF document text
    • https://s3.amazonaws.com/telasebisu/deadpool_1_tamil_dubbed_movie_isaimini.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_off0000dc96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC96 5428 bytes
SHA-256: 03d5db8e4c8f006367e3fd44933295cfb4c7a831b3900d4412130c38c0cf3041
font_01_sfnt_off0000ef17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF17 10404 bytes
SHA-256: 73b9972653cda0f3be78f8c3d8cd463d8b848598ded6e6283380809e51cec3e1