Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbc2dd4796aacb6a…

MALICIOUS

PDF

67.9 KB Created: 2021-02-14 11:39:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b3579c1e2677b4a16467ded59c75c646 SHA-1: 8c80b757ac2ea476e0d301b5be2dfd1fbc845379 SHA-256: fbc2dd4796aacb6a9a4fc21597ecd7eb0868f983452bbe69c1cec734ef7b377d
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://jottigo.ru/123?utm_term=math+worksheets+for+7+year+olds PDF link annotation
    • https://cdn.sqhk.co/pafevola/eijUhhp/stickman_revenge_3_gift_code_2020.pdfIn PDF document text
    • http://meduduwaje.22web.org/action_provider_class_android.pdfIn PDF document text
    • https://gugagefa.weebly.com/uploads/1/3/4/3/134343265/wajate-pafesu.pdfIn PDF document text
    • https://cdn.sqhk.co/werutojij/MXIgibq/japanese_letter_translation_into_english.pdfIn PDF document text
    • https://bejutenexej.weebly.com/uploads/1/3/3/9/133997629/8079856.pdfIn PDF document text
    • https://cdn.sqhk.co/fiwujumejuf/ihhhjFQ/shadow_battle_2._2_hack_apk.pdfIn PDF document text
    • https://forilulan.weebly.com/uploads/1/3/1/4/131408022/e0cbc.pdfIn PDF document text
    • https://nefabilaj.weebly.com/uploads/1/3/1/4/131438225/xurujeni.pdfIn PDF document text
    • https://tavebesu.weebly.com/uploads/1/3/1/3/131381332/jelelurunujusam.pdfIn PDF document text
    • https://cdn.sqhk.co/linotepibubi/dUK0gij/world_provinces_game.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fenozenexow.epizy.com/66276040093.pdfIn PDF document text
    • http://legibevisavu.epizy.com/miya_bhai_song_mp4_dj.pdfIn PDF document text
    • http://fuzaxovojige.epizy.com/video_call_facebook_free.pdfIn PDF document text
    • https://s3.amazonaws.com/ziwuvijevo/fun_multiplication_worksheets_grade_3.pdfIn PDF document text
    • https://s3.amazonaws.com/wiremeresegikon/rcog_guidelines_for_management_of_severe_preeclampsia.pdfIn PDF document text
    • https://s3.amazonaws.com/sowewazulejewi/74973685740.pdfIn PDF document text
    • https://s3.amazonaws.com/rojalexipokadaz/68878555045.pdfIn PDF document text
    • http://kalilom.epizy.com/vurajekabafuj.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_off0000cd6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD6C 5336 bytes
SHA-256: a1bd331ae75547c2d3f387ea97a657cb0c69198a1c6c202efc2a860d2305fa4a
font_01_sfnt_off0000dfb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFB8 10236 bytes
SHA-256: 36f7d751baedbcc8e0a91d42402acfb8e3da3dbb8ca50d4183088c8344045512