Malicious PDF — malware analysis report

Static analysis result for SHA-256 82002880e3abb90e…

MALICIOUS

PDF

80.2 KB Created: 2021-03-23 09:50:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: f87f6481e7970810f330da667bac88b6 SHA-1: 56dbfc7eb9f0bdc491f2d644875c1359bf01e0a2 SHA-256: 82002880e3abb90e9de05d1fcecafeb87afea6f99e09608a2002996673b08e75
164 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://resalured.ru/wix?keyword=apk+download+by+showbox+-+apkmirror PDF link annotation
    • http://kufafukedexepix.mygamesonline.org/saludonegopibonitete.pdfIn PDF document text
    • http://pizuwujigajanen.medianewsonline.com/45751308211.pdfIn PDF document text
    • http://lamakexo.scienceontheweb.net/epson_wf-2530_printer_wont_print.pdfIn PDF document text
    • http://jorowijedo.mywebcommunity.org/can_i_build_muscle_with_trx.pdfIn PDF document text
    • http://kebenoda.scienceontheweb.net/10696601720.pdfIn PDF document text
    • https://mefufexuwi.weebly.com/uploads/1/3/4/0/134019004/lakumulegogaluk.pdfIn PDF document text
    • https://gatiwisukebemo.weebly.com/uploads/1/3/1/4/131438587/dabekinuvibizojuja.pdfIn PDF document text
    • https://lanizozegew.weebly.com/uploads/1/3/5/3/135309184/8b08c.pdfIn PDF document text
    • http://bukuminuwakub.mypressonline.com/radosipe.pdfIn PDF document text
    • https://tavabaxo.weebly.com/uploads/1/3/1/0/131071290/b2f48f0e826.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/dalava/rexodedesopodikufugaj.pdfIn PDF document text
    • https://992bddda-184d-467f-a815-0165b41a2208.filesusr.com/ugd/69695d_52d55777f669495288a58cc0b2fc49dc.pdf?index=trueIn PDF document text
    • https://09ec9d85-9312-4337-94d0-b84080e05f2e.filesusr.com/ugd/ac0094_4b389ed2280e479caf3a832d297ea484.pdf?index=trueIn PDF document text
    • http://sasukagisodubex.onlinewebshop.net/51059688564.pdfIn PDF document text
    • https://s3.amazonaws.com/bagisi/hot_dip_galvanized_sheet_metal.pdfIn PDF document text
    • https://s3.amazonaws.com/kibavutibeved/xizikuweboparuzodonunede.pdfIn PDF document text
    • https://e3e1c2aa-7f41-47b0-8c2f-d823cb48b857.filesusr.com/ugd/7598fa_c9d3a0f3aa804b7cab1826260cf56958.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/mipeboro/pancreas_cancer_diagnosis_guideline.pdfIn PDF document text
    • https://s3.amazonaws.com/dojonuta/situdorazigasonikefefemi.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/panolusixiforix.pdfIn PDF document text
    • https://s3.amazonaws.com/rawesaragegugar/pibotefidimejiwefil.pdfIn PDF document text
    • https://c3373aeb-ed74-4f2d-b631-fa679e0a3f6f.filesusr.com/ugd/cbe7f7_cbc83a0da5ee49b28723824fe4d7421a.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC0F 5276 bytes
SHA-256: 69207614760c9eab454f56ff71a2b2aa80af7e1ad43775833252f47c959146f2
font_01_sfnt_off0000fdd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDD2 11068 bytes
SHA-256: 55e464dd5e9dc4c9e0841ac49ce47605ba7032e7086c6e8c6eff173eb2a37d1c
font_02_sfnt_off00012375.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12375 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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