Malicious PDF — malware analysis report

Static analysis result for SHA-256 fac4ea39b792097d…

MALICIOUS

PDF

37.2 KB Created: 2020-11-08 04:09:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 3d10533ffd702cc586d241a542acfc3c SHA-1: adb69d70ba1ff4bd561901798c02c292c3ddf1fd SHA-256: fac4ea39b792097decf4c058ac90ca8714bf21bddd84466f13f308d0e0873dc5
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://trafficel.ru/aws?keyword=weather+in+highland+ny+10+day PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4375521/normal_5f8da04a50a9f.pdfIn PDF document text
    • https://xutifivaluladar.weebly.com/uploads/1/3/4/3/134337767/rirelel_xamugel_lakufelesur_zikonamebifidan.pdfIn PDF document text
    • https://musimisipamorek.weebly.com/uploads/1/3/4/5/134594646/1159403.pdfIn PDF document text
    • https://bufobefogefeka.weebly.com/uploads/1/3/4/4/134445289/3420928.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366371/normal_5f882337b944d.pdfIn PDF document text
    • https://lefedatit.weebly.com/uploads/1/3/0/7/130776734/1690874.pdfIn PDF document text
    • https://vabusise.weebly.com/uploads/1/3/4/3/134385335/8081838.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/gezejoputiwinu/94338608142.pdfIn PDF document text
    • https://sijepafaji.files.wordpress.com/2020/11/zowaleramofipufu.pdfIn PDF document text
    • https://kitizabiwoxi.files.wordpress.com/2020/11/the_travelling_cat_chronicles.pdfIn PDF document text
    • https://s3.amazonaws.com/jofunozuzof/91579010077.pdfIn PDF document text
    • https://s3.amazonaws.com/ritoma/human_anatomy_and_physiology_lab_manual_answer_key_11th_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/bojafazes/92815342773.pdfIn PDF document text
    • https://s3.amazonaws.com/tutapaxi/disadvantages_of_bioplastics.pdfIn PDF document text
    • https://s3.amazonaws.com/bopuxosavubare/keystrokes_mod_1.8.9_curseforge.pdfIn PDF document text
    • https://jizobote.files.wordpress.com/2020/11/darkest_dungeon_compositions.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_off000053e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53E3 5216 bytes
SHA-256: 8301e8584390661f5e11b20024bf16252be74ff47df3894df48e6736538d752a
font_01_sfnt_off000065b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65B2 10016 bytes
SHA-256: c4bf318b670386a49837acde49960f67705f19783a74a3ffe9bb3b6e72bb755a