PDF malware analysis — malicious · ff773f9a7bdc5b92

MALICIOUS

PDF

79.6 KB Created: 2021-05-04 11:44:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24

MD5: 9a4df800fac331d4a56758646bb1a468 SHA-1: f4a6224a81f000b7f58c02c7c172f2d24a1fd13f SHA-256: ff773f9a7bdc5b9242dd70778a99e159da1a99c14b5241a466e26c9e68288410

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. It contains numerous external links, with one prominent URL pointing to a suspicious domain. The document body, though heavily obfuscated, references 'The crown netflix cast princess diana', suggesting a lure to attract user clicks.

Machine Learning

Nyx PDF Classifier malicious score 0.9964

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://golowaki.ru/strik?utm_term=the+crown+netflix+cast+princess+diana PDF link annotation
- http://mivifukatovaga.getenjoyment.net/96827631434.pdfIn PDF document text
- http://xilexevu.scienceontheweb.net/demoxave.pdfIn PDF document text
- https://cdn.sqhk.co/rogenujudita/aciiSif/nazaxatof.pdfIn PDF document text
- http://gasurorir.sportsontheweb.net/romanticism_in_literature.pdfIn PDF document text
- https://cdn.sqhk.co/nexetifosam/HgiGeid/nevumede.pdfIn PDF document text
- http://kojazunupetip.mygamesonline.org/43208561349.pdfIn PDF document text
- https://cdn.sqhk.co/dikizumi/iiiMOeD/hidden_agenda_definition_psychology.pdfIn PDF document text
- https://cdn.sqhk.co/vujejanar/7jjejaX/react_native_android_bundle_command.pdfIn PDF document text
- https://cdn.sqhk.co/letarezetap/CqLhfN7/localizar_mi_android_por_gps.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/698cfbe4-30a2-46a8-982a-538da6b14239/yamaha_motif_6_manual.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/10f7eef9-a1e3-4b06-bd99-beb3a321177b/vizawubijafoxozujen.pdfIn PDF document text
- https://1e16f6d7-285b-4488-bf07-d3e24ac90e20.filesusr.com/ugd/417718_f11e80f3c86e42e5a00ae664dd32e9ce.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/c0bb579c-8d51-4aa0-8e97-00dcccd40a3c/divivavolorobomo.pdfIn PDF document text
- https://1c514d3f-4aca-4c14-a2cc-94ef866bc6c7.filesusr.com/ugd/860217_3252ed8268594121826eb62a607532ac.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/pibajuwi/7751583595.pdfIn PDF document text
- https://s3.amazonaws.com/xozeb/nixon_womens_watches_zumiez.pdfIn PDF document text
- https://6739ca04-605d-4ff4-b4c9-4e5bd75a7819.filesusr.com/ugd/031dda_e738131f24f64496845ac18feccfc96a.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/jepinebawo/siwoxewaf.pdfIn PDF document text
- https://s3.amazonaws.com/lupebesu/xactimate_mobile_user_guide.pdfIn PDF document text
- https://s3.amazonaws.com/zazelujeju/free_templates_for_blogger_2017.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c939fe63-ee3b-436c-9ddb-ab067f95238e/vojowidunipazosanusulilul.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f430df94-53e0-450c-962e-32eb9bcd8642/59509397337.pdfIn PDF document text
- https://80c8fd16-4cf8-4f9f-b52b-d6c956df8f3b.filesusr.com/ugd/1a94e8_6a987daca3cc4ce19765b7a7af30f85d.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/tibanepoxilibud/44370566085.pdfIn PDF document text
- https://s3.amazonaws.com/gawabog/identifying_expressions_and_equations_worksheets.pdfIn PDF document text
- https://s3.amazonaws.com/futamo/academic_singles_app.pdfIn PDF document text
- https://s3.amazonaws.com/jasadavebaga/employee_manual_template_canada.pdfIn PDF document text
- https://52a1af19-6946-4c37-aba6-ab00a30e4874.filesusr.com/ugd/5dc3ca_40537e565cd240cd8579d7016e0fefab.pdf?index=trueIn 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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f898.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF898	5352 bytes
SHA-256: `008d483f963259755d6522f3c8b2bd850fc639eef37150fa528434135362a364`
`font_01_sfnt_off00010add.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10ADD	11144 bytes
SHA-256: `2737e5268ee1c574059d939ddb856fe0efa6c798a1b9e72559b7722528e2f955`

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