Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b614d547a2bf383…

MALICIOUS

PDF

76.9 KB Created: 2021-02-24 21:40:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ba23518a2ffece8c8520f05f78a3639b SHA-1: d11a89722c28a38c1f37e9b5fa80a9f4b3c79ed7 SHA-256: 3b614d547a2bf383e443d57d43e5bd4d4717aa5f810783ae8160caaac1be5d3e
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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://bologen.ru/123?utm_term=what+are+the+two+stars+next+to+the+moon+tonight PDF link annotation
    • https://tevejokufip.weebly.com/uploads/1/3/0/9/130969131/parajarimiki-sixotepe.pdfIn PDF document text
    • http://lolafoduluj.22web.org/battle_cats_all_true_forms.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475203/normal_5febeb5f60c8d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479916/normal_5fe8edfb8545b.pdfIn PDF document text
    • https://gepogujewo.weebly.com/uploads/1/3/1/3/131382217/bipokiz-taposodeduvofo-savijun.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393499/normal_5fd8bcdea7742.pdfIn PDF document text
    • https://cdn.sqhk.co/pixisuja/ijgmEGi/tap_training_baseball.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410953/normal_601c5d926e324.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451028/normal_5fde2155e8510.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469626/normal_5ff82a1856c43.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376362/normal_601baccc7d7d5.pdfIn PDF document text
    • https://rixorololexapi.weebly.com/uploads/1/3/1/8/131857390/3038639.pdfIn PDF document text
    • https://dodoxatufasiw.weebly.com/uploads/1/3/2/6/132681482/basavited-zuwujuma.pdfIn PDF document text
    • https://kajizifobizixa.weebly.com/uploads/1/3/3/9/133997117/gogabegowobotag.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://faxiruvud.myartsonline.com/jaxosu.pdfIn PDF document text
    • http://vidavizulovox.rf.gd/tatunerosopajavegopomiwe.pdfIn PDF document text
    • http://lugirike.epizy.com/brillion_cultipacker_parts_manual.pdfIn PDF document text
    • http://lipesomidu.epizy.com/formal_handwritten_letter_template.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_off0000f053.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF053 5240 bytes
SHA-256: d91430dbd74549d5549f3e2ad5a0daaa5af600934246a58e6a86f9aada66295d
font_01_sfnt_off00010216.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10216 10588 bytes
SHA-256: 1a5c7d3c0b9d0b83d4b39795fbe4a95ac1968a146b68a2261f54bea5b29b880d