Malicious PDF — malware analysis report

Static analysis result for SHA-256 7675429db98a4585…

MALICIOUS

PDF

162.7 KB Created: 2021-03-17 03:53:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: f9ffbaeef82de2a2779bf0eb927cf09c SHA-1: f1fa54e985946e273fc6d816cfcccea7d203ad3b SHA-256: 7675429db98a4585910e86885512b761f6c9d54a0c9d62f5abd823969a0bbab3
96 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 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 0.9957

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://leonvi.ru/wix?keyword=acer+aspire+5250+service+manual PDF link annotation
    • https://risixugetiso.weebly.com/uploads/1/3/5/3/135317557/e400669b01ee38d.pdfIn PDF document text
    • https://zokamufonokori.weebly.com/uploads/1/3/1/1/131164159/39d94d711c.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/dazinibonofobi/pituitary_adenoma_endocrine_society_guidelines.pdfIn PDF document text
    • https://dc383e6d-b7a3-4e67-a88a-227fa542b6c3.filesusr.com/ugd/72b0e7_12547eef0a2348eb9a4b1904b9f07e24.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/12f00a35-9c33-443e-a1b6-37bbb4c90d48/practically_cheating_statistics_handbook.pdfIn PDF document text
    • https://s3.amazonaws.com/fixararololu/pujupediba.pdfIn PDF document text
    • https://s3.amazonaws.com/juzewojavomofew/favn_report_form.pdfIn PDF document text
    • https://s3.amazonaws.com/bisapovepizaj/ben_10_tamil_song.pdfIn PDF document text
    • https://99b08629-27b2-41dd-83a1-938dc2ca35bd.filesusr.com/ugd/067ecb_e67a91aa8eec4b6a9fcfdeb838d90313.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/ximupuv/the_wave_arizona_como_visitar.pdfIn PDF document text
    • https://s3.amazonaws.com/pidufozu/87560236639.pdfIn PDF document text
    • https://s3.amazonaws.com/nalifij/gate_2018_instrumentation_books_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/711048ef-aef6-472b-9b49-85e809850b95/video_conferencing_guidelines_for_teachers.pdfIn PDF document text
    • https://s3.amazonaws.com/fovezewi/free_genogram_template_social_work.pdfIn PDF document text
    • https://35479656-6a94-44d6-ac55-da507c14a2ae.filesusr.com/ugd/d68318_179f27156bca457a9b82391728465588.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/legenapi/xelavixuvo.pdfIn PDF document text
    • https://s3.amazonaws.com/xuxifuzituwu/lalalajo.pdfIn PDF document text
    • https://s3.amazonaws.com/wufujudisu/95142836372.pdfIn PDF document text
    • https://01c4c9a3-ee74-4db9-a65d-799443b8dbf1.filesusr.com/ugd/a64c8c_e7258f6543764693a5b9b602af062ceb.pdf?index=trueIn PDF document text
    • https://76f5a3e5-08d8-4581-9975-6c1b933a1845.filesusr.com/ugd/dbbd16_dffac25d62884b02ac01d8474f15157b.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/9aa3cd4d-5a2d-49a2-8772-f1a0b5c69fe3/sugar_medicine_name_list.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8718900-8dfc-4b74-b45c-50e6e2e4065d/netgear_ac1750_wifi_docsis_3.0_cable_modem_router_c6300_review.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuzo/wugafudegugabuxirofit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86765756-d586-4bac-90df-7837d1112be9/html_tags_for_text_alignment.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_off0000f2f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2F0 105492 bytes
SHA-256: 54469116e29f589d62035a32cc401e447b05103c65f9688c398924c7b31e3048
font_01_sfnt_off00022a4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22A4F 5524 bytes
SHA-256: dce60292c6ec187e5de51e0bb63711846a32db6856c1021903b3a30a4e26f348
font_02_sfnt_off00023d0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23D0D 10592 bytes
SHA-256: 48e0e568528c042b53a923a80236ea7222eb3e5906d6d753cba33aff112fd9f9
font_03_sfnt_off000261a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x261A3 17980 bytes
SHA-256: 11e600cba799035ff3f5aa111872b88db6890a3239ba2af07b63b86ee33568ca