Malicious PDF — malware analysis report

Static analysis result for SHA-256 1cab6061e244e2e7…

MALICIOUS

PDF

83.6 KB Created: 2021-02-15 23:57:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: b5e48715bca0cc79f045e56f3743b744 SHA-1: 93a3b6d023d6eef76a16adaf2632cf3075672397 SHA-256: 1cab6061e244e2e7725b28bb1eda78c3c0afe629dcd725f8b064383505c8f426
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The file contains a large number of external links, indicating a potential link farm or phishing campaign designed to redirect users to malicious websites. No scripts were extracted, but the presence of numerous external URLs suggests an attempt to lead users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • 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://seumenha.ru/123?utm_term=simplicity+broadmoor+lawn+tractor+reviews PDF link annotation
    • https://povazolanatul.weebly.com/uploads/1/3/0/7/130740072/rodawinevusesuvo.pdfIn PDF document text
    • https://tidukefawa.weebly.com/uploads/1/3/4/8/134851120/jakutarepig_disefimobupom_razakow.pdfIn PDF document text
    • https://batozovij.weebly.com/uploads/1/3/1/4/131455337/suzezij.pdfIn PDF document text
    • https://cdn.sqhk.co/tinolaseja/fPqggOi/comcast_prepaid_internet_customer_service_number.pdfIn PDF document text
    • https://korexabareruwa.weebly.com/uploads/1/3/2/6/132680962/xajukepidikodulo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458856/normal_5fec4c33d3be8.pdfIn PDF document text
    • https://zegaturivelegob.weebly.com/uploads/1/3/1/4/131437779/7984809.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411944/normal_6013719bf0b96.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419826/normal_5fc7622f0b778.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365545/normal_60057cef73020.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475571/normal_5ff75deb9750b.pdfIn PDF document text
    • https://sikupawabur.weebly.com/uploads/1/3/4/6/134624396/potamedano.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490929/normal_601e0fc12a36b.pdfIn PDF document text
    • https://vobanugan.weebly.com/uploads/1/3/5/3/135340106/157f8afc3f3ae7b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420765/normal_5fcfb7b9c8a44.pdfIn PDF document text
    • https://cdn.sqhk.co/ratobomebal/reTihDO/42926418447.pdfIn PDF document text
    • http://vemasujananexu.22web.org/lefizuwetefowiliwep.pdfIn PDF document text
    • https://rilinozeni.weebly.com/uploads/1/3/1/0/131070652/rimetafekufi.pdfIn PDF document text
    • https://kasababafaraw.weebly.com/uploads/1/3/5/3/135336348/xoliju.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://reratosagozi.rf.gd/97940224022.pdfIn PDF document text
    • http://fejukuvazov.rf.gd/bruel_and_kjaer_2250_user_manual.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_off00010849.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10849 5716 bytes
SHA-256: fababe7915d41b0964c90cf0da66243a6974d7c04e090868ba232535cd4f025b
font_01_sfnt_off00011bbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BBC 10952 bytes
SHA-256: f22d2c10a3d05264e70b7eb75e68328c7c130d8a492ba15caadef10c39174382

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