Malicious PDF — malware analysis report

Static analysis result for SHA-256 3018e04a0d8c535b…

MALICIOUS

PDF

78.8 KB Created: 2021-03-01 09:19:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5b02c20061265a7f756e516b67c7b311 SHA-1: 94ffdf1436bbbfc8b0164cb82ba470108541ff34 SHA-256: 3018e04a0d8c535b7f01d4eaa44e635e72366ceba9680c359df7f250f137b2ce
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://baarspo.ru/award?keyword=how+to+cook+all+your+meals+for+the+week PDF link annotation
    • https://sokezimipadivob.weebly.com/uploads/1/3/5/9/135959039/93128d2c577.pdfIn PDF document text
    • http://whalesqpa.fun/kevibausskw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409257/normal_5fcd7ca223c14.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454180/normal_6022c1798f3c9.pdfIn PDF document text
    • http://lupelisizi.medianewsonline.com/what_is_the_proper_air_fuel_ratio.pdfIn PDF document text
    • http://biotringel.shop/wotogurixeromofapu8ma7y.pdfIn PDF document text
    • https://doxazefeseremef.weebly.com/uploads/1/3/4/7/134764644/vowikuwexurigoko.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500677/normal_5fec591d7f968.pdfIn PDF document text
    • http://instapriz24.online/various_types_of_guided_transmission_media3kiqb.pdfIn PDF document text
    • http://wedipum.mygamesonline.org/82487723956.pdfIn PDF document text
    • https://zokolukesowi.weebly.com/uploads/1/3/0/7/130776120/6413789c0e07f.pdfIn PDF document text
    • http://osummer.space/alphabetizing_worksheets_grade_4zfyrn.pdfIn PDF document text
    • https://litalegikuga.weebly.com/uploads/1/3/4/5/134587653/9311182.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419452/normal_602bdd65c926b.pdfIn PDF document text
    • https://falumegobe.weebly.com/uploads/1/3/4/7/134702986/podujafijosifenosufi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446152/normal_5fd0aa647b1c7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://womawujun.atwebpages.com/what_to_read_after_captive_prince.pdfIn PDF document text
    • http://bototiluwoge.atwebpages.com/listening_skills_activities_worksheets.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_off0000f896.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF896 5340 bytes
SHA-256: 2b0409a03ab6a8113fd4c8d9d94b62698cdfcbde79ac11446537d05ef2739949
font_01_sfnt_off00010aaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AAF 10328 bytes
SHA-256: 62b8f6aa336d414b33719bde2efb6f4c48b822d7373798eb249b38dd5d6e8636