Malicious PDF — malware analysis report

Static analysis result for SHA-256 97d9e8ca6818e7f3…

MALICIOUS

PDF

76.9 KB Created: 2021-03-16 17:27:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 77336d8c4bb427c6131020eabe72cd75 SHA-1: 44749564a0b4bdaebbe67689801cce2bc9289a8a SHA-256: 97d9e8ca6818e7f356a8a0c3ab8baf4d1e99a5fbf1fca6ef5323686a8c3d2fc3
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains numerous embedded URLs, with one specifically targeting a search query for 'Third carnatic war pdf'. Heuristics indicate this PDF is part of a link farm on disposable hosting, and ClamAV detected it as a phishing trojan. The ML classifier also flagged it as malicious, suggesting it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://kuzutuzo.ru/award?keyword=third+carnatic+war+pdf PDF link annotation
    • http://copyrighthelpcentral.com/duliruxebijstpw.pdfIn PDF document text
    • https://vizumijolotetip.weebly.com/uploads/1/3/5/3/135394273/xakiwiwepofaza-zifugug.pdfIn PDF document text
    • http://legegapepapo.medianewsonline.com/vevisowulodetewu.pdfIn PDF document text
    • http://bajesiradevo.getenjoyment.net/93291744160.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417025/normal_601129cc89b2c.pdfIn PDF document text
    • http://nutristrike-shop.ru/99240709471tl3lu.pdfIn PDF document text
    • http://raxawevamavox.getenjoyment.net/31943958895.pdfIn PDF document text
    • https://xorataseturife.weebly.com/uploads/1/3/5/3/135333409/watodusipixodur_zebivabusutu_femova_nusabasoruguki.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374843/normal_5fc5f6dced8a2.pdfIn PDF document text
    • http://vanimerukaguto.scienceontheweb.net/sonic_nutrition_guide.pdfIn PDF document text
    • http://kleomaften.online/majasonatavg1eqc.pdfIn PDF document text
    • http://stixlife.info/great_resume_templates_wordpegtd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450730/normal_601bf959b4081.pdfIn PDF document text
    • https://kujepilam.weebly.com/uploads/1/3/5/3/135343620/fefepemumavab_romikaxuvo.pdfIn PDF document text
    • http://kugewezebuvigiw.mygamesonline.org/nuburukepa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450864/normal_5fd2187b6f7e3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403951/normal_5fcb4d7969e30.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sanojepenot.onlinewebshop.net/fit_for_life_physical_therapy_florida.pdfIn PDF document text
    • https://s3.amazonaws.com/sesafefanulokam/tezikasemepuran.pdfIn PDF document text
    • http://tiwatimab.atwebpages.com/fallout_4_companion_guide_likes.pdfIn PDF document text
    • https://s3.amazonaws.com/bomupi/anjali_anjali_pushpanjali_song.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/brawlout_ps4_trophy_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/furunumaroxun/moridizulugopasukisaze.pdfIn PDF document text
    • https://s3.amazonaws.com/wujanozo/atelier_lulua_curry_ending_guide.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_off0000f009.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF009 5076 bytes
SHA-256: de19d8ac6d22efb23d77d63adccba1bfdab61f56200e51d600c8d0f9313c33ad
font_01_sfnt_off0001015a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1015A 10956 bytes
SHA-256: b609eab85b5e686668c0b7ea07b4666d8434ff0fabe126d5b7159be520efcdb1

Open this report in the interactive analyzer, or submit your own file for analysis.