Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e6738989ea41d23…

MALICIOUS

PDF

71.4 KB Created: 2021-03-11 11:34:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: bd204612d8a6298467fd7f443e7ac017 SHA-1: a98f8b1fd0f9519171d75db37feb84698adf9777 SHA-256: 0e6738989ea41d23c437bc4344fd460f2c4aaf784eec2a2a2e2154139c18ed8f
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://resalured.ru/award?keyword=bhaktamar+stotra+free+download+pdf PDF link annotation
    • http://xuwuvewisin.mypressonline.com/91581240783.pdfIn PDF document text
    • http://kefijor.mygamesonline.org/lords_of_chaos_movie_soundtrack.pdfIn PDF document text
    • http://tejasatobes.medianewsonline.com/buxesopaxidog.pdfIn PDF document text
    • http://gewusoluxul.scienceontheweb.net/alone_together_online_escape_room_hints.pdfIn PDF document text
    • https://nerisowale.weebly.com/uploads/1/3/1/4/131412290/8c619ac1.pdfIn PDF document text
    • https://pebawatiwokup.weebly.com/uploads/1/3/4/5/134576243/a8d7fde.pdfIn PDF document text
    • http://galosidijixiwu.mypressonline.com/solubility_curve_worksheet_2_answer_key.pdfIn PDF document text
    • http://fusekimutoxi.sportsontheweb.net/funoxuzipibajasefinaziji.pdfIn PDF document text
    • https://gilolubirej.weebly.com/uploads/1/3/4/3/134309297/vapoburoxed_bazizufapavor.pdfIn PDF document text
    • https://wawodupalise.weebly.com/uploads/1/3/4/6/134621762/fikarotilunu_tiwomokujusuna_taxoxisidirur_nopopuzibixavis.pdfIn PDF document text
    • https://galanutix.weebly.com/uploads/1/3/4/5/134591813/monebavazazetajev.pdfIn PDF document text
    • https://fumevixupi.weebly.com/uploads/1/3/0/7/130775707/3166869.pdfIn PDF document text
    • https://romenugerod.weebly.com/uploads/1/3/5/3/135317494/070b14826ed060a.pdfIn PDF document text
    • http://instgrmmverifiedbadge.com/how_did_the_brown_vs_board_of_education_affect_societyy4q3p.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lejiletuvasipib.onlinewebshop.net/wudemorulerexumibi.pdfIn PDF document text
    • https://s3.amazonaws.com/wujapu/51203358304.pdfIn PDF document text
    • http://runuwug.myartsonline.com/38201553864.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_off0000cfe5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFE5 5484 bytes
SHA-256: 4383ca7c5ea537bd502015d7dfa81b1ff685226898ffb003950cd2c61d044a54
font_01_sfnt_off0000e278.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE278 14588 bytes
SHA-256: 36311a54c2ecd35afcdab0d8d5b2ee3106b830639c039931da1930027e5290dd