Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd773eeedc250ab0…

MALICIOUS

PDF

64.9 KB Created: 2021-02-17 00:45:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 18743a043a4847396a2fc8660a84e1b7 SHA-1: e5cad3987274f76b1261e4a6130272b639a83a60 SHA-256: dd773eeedc250ab03cd784bdb823a0953fcf98d2887e4b6adfe959f966c15bef
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/aws?utm_term=how+to+lose+10+pounds+diet+and+exercise+plan PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4444850/normal_5fd37761a3f26.pdfIn PDF document text
    • https://wefogazasu.weebly.com/uploads/1/3/4/8/134880183/wevuwiguv.pdfIn PDF document text
    • https://wafilanukeg.weebly.com/uploads/1/3/5/3/135309269/6123c0ac777.pdfIn PDF document text
    • https://cdn.sqhk.co/teposodigar/ihjfHje/snow_white_and_the_huntsman_sequel.pdfIn PDF document text
    • https://cdn.sqhk.co/benibavagoge/iegjgcC/55003334151.pdfIn PDF document text
    • https://dubuweni.weebly.com/uploads/1/3/1/6/131637072/b14f9d6f48f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475216/normal_5fcbbe15d220b.pdfIn PDF document text
    • https://jadetikoj.weebly.com/uploads/1/3/5/3/135350844/6feece8d4e7c4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426271/normal_60007a8248a51.pdfIn PDF document text
    • https://cdn.sqhk.co/xamubana/heZSlje/nigufogix.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474752/normal_5fe9c4bb1c2cf.pdfIn PDF document text
    • https://cdn.sqhk.co/jivazufevi/cTgcmQr/nail_art_spa_pullman_prices.pdfIn PDF document text
    • https://nofefikow.weebly.com/uploads/1/3/4/5/134510094/328cdca7.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/baritexovopa/rangasthalam_dj_audio_songs_naa_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/resixexi/84365711609.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_off0000c3e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3E4 5380 bytes
SHA-256: 9b7991907f352b63fb1407685c6cf58129bfc727e682f1999b2422c2210c984d
font_01_sfnt_off0000d659.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD659 9508 bytes
SHA-256: 3a205a484c204277de1f64e1ec29877a1f9c720b4a342260771a1931a20de823