Malicious PDF — malware analysis report

Static analysis result for SHA-256 3babded6ca3efa1e…

MALICIOUS

PDF

69.7 KB Created: 2021-02-21 19:44:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 3e768734f3104bd9d704091725703865 SHA-1: d66a42c4119f8a45238b3c2712e49e6530dd5a1a SHA-256: 3babded6ca3efa1eff45b68bf1eff39770a6830b47f048205a336cd2b091e72c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 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://maypoin.ru/wix?keyword=postal+exam+955+study+guide PDF link annotation
    • https://puvawenoma.weebly.com/uploads/1/3/3/9/133999826/sazopitevifidog_tivarenepadu_murenej_furekeloloxilom.pdfIn PDF document text
    • http://feldhaus-klinker-plitka.ru/5620270413hmqme.pdfIn PDF document text
    • https://vabeliguteziji.weebly.com/uploads/1/3/1/3/131379360/0550b4370a.pdfIn PDF document text
    • https://tekegalesi.weebly.com/uploads/1/3/0/7/130740489/cf758696fa5d55.pdfIn PDF document text
    • https://cdn.sqhk.co/dajuzafum/cwDiapM/acrylic_nails_near_me_prices.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369920/normal_601f0759ac205.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372373/normal_60058fbe4fe5d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421782/normal_601dc2a031262.pdfIn PDF document text
    • https://kikuwigew.weebly.com/uploads/1/3/1/4/131407235/6032063.pdfIn PDF document text
    • https://nonelugo.weebly.com/uploads/1/3/0/7/130775267/pefazujomi.pdfIn PDF document text
    • http://speak4pro.com/dieta_celiaco13gzj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413473/normal_5fec8c04b0d12.pdfIn PDF document text
    • https://kuburabet.weebly.com/uploads/1/3/4/3/134362545/42a290cf3db125.pdfIn PDF document text
    • https://cdn.sqhk.co/fekawitaxug/2uhhavV/live_tv_streaming_apps_for_android_tv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d40f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD40F 5500 bytes
SHA-256: 3d52361f965961fc4e82abe9d7704d5a1a0ab589b432ac00ed82284294c2e41c
font_01_sfnt_off0000e6cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6CB 10368 bytes
SHA-256: 6d2df29b7df3a7da99adf2707bc877ebbac648c5809483a49238aab9bcf8c7d6