Malicious PDF — malware analysis report

Static analysis result for SHA-256 f05da0132e4094a9…

MALICIOUS

PDF

78.1 KB Created: 2021-02-08 19:23:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 5246086e8f4d4990e10551983530af24 SHA-1: 119e747e6852f36b24d0f78b08658573f5f3e9d3 SHA-256: f05da0132e4094a9728855d239c36e51d488aa08f13c8a8e0f28c7559603d0bf
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://seumenha.ru/aws?utm_term=analyze+postgresql+performance PDF link annotation
    • https://cdn.sqhk.co/tajiwikiter/19hjhbW/totafe.pdfIn PDF document text
    • https://cdn.sqhk.co/kuzefoke/dNVhge5/bovegoxujudere.pdfIn PDF document text
    • https://tixovokibena.weebly.com/uploads/1/3/4/1/134109053/3986256.pdfIn PDF document text
    • https://cdn.sqhk.co/sirejeforox/gCnhbhg/ringtone_download_music_sound.pdfIn PDF document text
    • https://cdn.sqhk.co/nokotadi/iihgYtM/tigry_piano_for_piggy_obby_mode.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380705/normal_5ffda37fd5b03.pdfIn PDF document text
    • https://bipipabogudas.weebly.com/uploads/1/3/1/1/131164499/22c70b96b07.pdfIn PDF document text
    • https://mapobosani.weebly.com/uploads/1/3/4/3/134385232/dozufet_zozaxifidoxab_getugezatuxives_xigewinu.pdfIn PDF document text
    • https://nepibosumu.weebly.com/uploads/1/3/4/3/134363752/fovilabof-nevep-fuxuguzixota.pdfIn PDF document text
    • https://motovonesavot.weebly.com/uploads/1/3/4/6/134690882/2461197.pdfIn PDF document text
    • https://vidiwubiref.weebly.com/uploads/1/3/0/8/130874646/miriwetefevo.pdfIn PDF document text
    • https://gososeru.weebly.com/uploads/1/3/4/5/134597059/9401344.pdfIn PDF document text
    • https://ligonulijer.weebly.com/uploads/1/3/5/3/135318365/gowabe-bepefef-kodiji-lavok.pdfIn PDF document text
    • https://foziwumiwogesis.weebly.com/uploads/1/3/5/3/135321673/4649000.pdfIn PDF document text
    • https://cdn.sqhk.co/juzurupivepo/fygcVSb/595154351.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/ratixifo/73532799932.pdfIn PDF document text
    • https://s3.amazonaws.com/jefazaxal/jezebel_horror_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/golepe/appendicitis_in_pregnancy_rcog_guidelines.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_off0000effe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFFE 5604 bytes
SHA-256: 3ad0a48a8fcff73f8ed1dfd3bed4ec0a7b14ac28f8f41db46084e124c1d5c9ba
font_01_sfnt_off00010318.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10318 11900 bytes
SHA-256: 93ad5a744e83d387af82f65ca83ab8a6110a1404c7308c803bafb98253e9eaee