Malicious PDF — malware analysis report

Static analysis result for SHA-256 56ae8669b890ae7e…

MALICIOUS

PDF

136.9 KB Created: 2021-03-16 07:18:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: a889a2ab05b25cff2ee9bacbe2774e90 SHA-1: 9c15a3d623dc6b013de58e4fb1460952f02f91aa SHA-256: 56ae8669b890ae7e4bb81a0d378b90625a4f97744006dcd88460a0511adcced2
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a password-protected-archive lure. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://lozipotod.ru/aws?utm_term=simulacro+de+evacuacion+en+empresas+2018 PDF link annotation
    • http://zubiki.top/zowixebupa0u84.pdfIn PDF document text
    • http://nuveclovet.xyz/69032486101p4si1.pdfIn PDF document text
    • http://wipunemobak.mygamesonline.org/who_is_pulling_your_strings_free_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415935/normal_5ff0e486ebd01.pdfIn PDF document text
    • http://sarupunojupud.sportsontheweb.net/how_to_take_apart_a_cabrio_dryer.pdfIn PDF document text
    • http://peromopativej.mypressonline.com/what_should_a_quality_plan_include.pdfIn PDF document text
    • https://cdn.sqhk.co/zuzipogowita/hhimf1Z/waves_tune_real_time_live_performance.pdfIn PDF document text
    • http://nicepics.xyz/78288743033i4fok.pdfIn PDF document text
    • https://cdn.sqhk.co/wedegetuso/eOhbidU/nfl_cardboard_cutouts_price.pdfIn PDF document text
    • http://kepuxom.mypressonline.com/paludisopakadokuxasof.pdfIn PDF document text
    • http://doordash.fun/wotibuposawovawozatj5cp.pdfIn PDF document text
    • http://iwhite.space/business_english_vocabulary_test3t699.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417205/normal_6036164746dd6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414696/normal_602f87a637600.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470832/normal_60485f6e3ebca.pdfIn PDF document text
    • https://cdn.sqhk.co/jidulopavoji/hfljcZG/space_wallpaper_4k.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/xuxifuzituwu/bachelor_thesis_proposal_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41d770be-ea2c-4bac-b56c-ab8b90cfd2df/93204852667.pdfIn PDF document text
    • http://bavotuvezomevi.myartsonline.com/12283189276.pdfIn PDF document text
    • https://s3.amazonaws.com/nagudo/17730533374.pdfIn PDF document text
    • https://s3.amazonaws.com/rawesaragegugar/kimotibekagazumanizizevo.pdfIn PDF document text
    • https://s3.amazonaws.com/joterige/edgenuity_answers_english_1_b.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71408423-4f03-490c-8b8c-db1261a535ef/color_code_for_crossover_cable_rj45.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/apache_solr_7._3._1.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001b73a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B73A 5900 bytes
SHA-256: af50d8ee4cf50af9c00040ad04cf66cf21841cb4aa57d592826b7caf6392cb49
font_01_sfnt_off0001cb35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1CB35 1800 bytes
SHA-256: 6d2a3a16cc464ce72cf05976c7f96a31c93af2202e0dc760c37a694345e222ee
font_02_sfnt_off0001d3c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D3C5 13688 bytes
SHA-256: f1837befc046223e620788994644e4ce2cf46b69f72611fc91a859f1fb0c5fc7
font_03_sfnt_off0001fec2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1FEC2 16340 bytes
SHA-256: de76a48b03d8a68ea6e765fd7f8b30dff5909a700d3fa289395d081cc4c1bb67

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