Malicious PDF — malware analysis report

Static analysis result for SHA-256 de09d8dfc73f5b48…

MALICIOUS

PDF

77.0 KB Created: 2021-02-17 02:44:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 15d42211fa46e5dee776f614eb6466ca SHA-1: de0328a96667c6ba2cea7e78792f682e3e30bead SHA-256: de09d8dfc73f5b481cc1dc7887d99c006bf6c5893de1313a65c16d3d26f54dbd
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, with one prominent URL pointing to a suspicious domain. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or distributing further malware. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 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://baarspo.ru/strik?utm_term=wd+my+passport+ultra+reformatting+for+mac+os+x PDF link annotation
    • https://ranaxeli.weebly.com/uploads/1/3/4/4/134478161/weruf_mufufavafine_revuwideduneg_fonigoj.pdfIn PDF document text
    • https://remoruputudedux.weebly.com/uploads/1/3/4/0/134017090/vivusetezenuwad_mogexatujigu.pdfIn PDF document text
    • https://cdn.sqhk.co/genizataxom/jbgdjaW/86932724908.pdfIn PDF document text
    • https://rawewarox.weebly.com/uploads/1/3/1/3/131379085/dabupoleb.pdfIn PDF document text
    • https://mugebixivezir.weebly.com/uploads/1/3/1/4/131484268/0083b86d04f7bc.pdfIn PDF document text
    • https://fewibobukuk.weebly.com/uploads/1/3/5/3/135309281/rusasexasozus_kigupexuzulave.pdfIn PDF document text
    • https://bimefitovaj.weebly.com/uploads/1/3/1/4/131437299/gubesebegerala_vorawutefo.pdfIn PDF document text
    • http://tonagruz.ru/tinowataterelixuvufrcvy8.pdfIn PDF document text
    • https://cdn.sqhk.co/setawigiz/jAggha5/anyone_else_but_you_ricky_nelson.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tugafebip/ayuntamiento_de_merida_reportes.pdfIn PDF document text
    • https://s3.amazonaws.com/tigovatolis/62077739661.pdfIn PDF document text
    • https://s3.amazonaws.com/purufiz/vivavideo_pro_video_editor_apk_free.pdfIn PDF document text
    • https://s3.amazonaws.com/baxadelefofibuz/fodininimaxokan.pdfIn PDF document text
    • http://takefaluzimun.rf.gd/togapuwerufik.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_off0000efce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFCE 5660 bytes
SHA-256: 9c97ab6a9d85418c7097821d84aa1c768002aea88955825fa5f7152237b08dc9
font_01_sfnt_off00010315.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10315 10524 bytes
SHA-256: 903670a37b3340bd3dd85d77fbbb2a828ed20e577152cc9795c805377775133a

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