Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5415c3e70fa8a19…

MALICIOUS

PDF

155.4 KB Created: 2021-03-14 00:53:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 9898e73f8664271ee735a216c21368e3 SHA-1: 6f958424e7ca597c8f657c458e4fd94b70f15873 SHA-256: c5415c3e70fa8a193c2decae71d97dbdd255e54347d586054222b39cbd2b2719
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9985

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://baarspo.ru/award?keyword=sfo+bart+map+pdf PDF link annotation
    • http://goodnatural.space/15894132966mppts.pdfIn PDF document text
    • https://cdn.sqhk.co/vozevadijut/Hgfahgy/interstellar_cast_imdb.pdfIn PDF document text
    • http://parrrtner.xyz/45684820811amxf3.pdfIn PDF document text
    • https://cdn.sqhk.co/kakovavop/kJiejcZ/sixozemominufagudevizas.pdfIn PDF document text
    • https://cdn.sqhk.co/pelotuwew/hhziajg/color_by_number_addition_halloween_printables.pdfIn PDF document text
    • http://snail-case.store/jesurivuwenofoveko8dwrn.pdfIn PDF document text
    • http://mexicotop3.xyz/ferrite_loop_antennaow26y.pdfIn PDF document text
    • https://cdn.sqhk.co/jumupebuvi/VgeUidP/bepiwumudo.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/jemazejodep/diablo_3_botting_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/regovadeje/android_mobile_automation_using_appium.pdfIn PDF document text
    • https://s3.amazonaws.com/fajetufekejo/23204258049.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37b7b453-fe9d-4b63-a244-d5cfc80cedc4/rejudakarogebavazetutux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03d58c73-61fc-4878-8343-7596b474cf13/physicians_desk_reference_for_herbal_medicines_online.pdfIn PDF document text
    • https://s3.amazonaws.com/dinigugaxej/31474707676.pdfIn PDF document text
    • https://s3.amazonaws.com/kujapomib/fifepejodakan.pdfIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/aviva_online_forms.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87f897bc-3806-46cc-b5a1-39679085bc43/how_to_learn_cashier_work.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e3b4560-0c4d-48ea-b362-635bd99c94c7/zufodajukulojevovi.pdfIn PDF document text
    • https://s3.amazonaws.com/lupuvogotog/circular_saw_cutting_sheet_metal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8674822-b8c7-47eb-9add-ff6e0e8a1ddb/numivebegurabekevemu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8dc19c8-28eb-4273-805d-077bd5d02dfc/lorotufavelosubuwikab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/339d9e4b-3041-4142-a264-a3db3a11c4a4/8564228880.pdfIn PDF document text
    • https://s3.amazonaws.com/meludav/android_studio_webview_blank_white_screen.pdfIn PDF document text
    • https://s3.amazonaws.com/wudibirewuduto/teleposi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000210a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x210A6 5220 bytes
SHA-256: dd7ec2bf9f7ea38a8ab53b1e75a4b2de07450c072572d3a34d6ba2f60b68db9a
font_01_sfnt_off00022250.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22250 12224 bytes
SHA-256: 61fc5bf2423b000e80de3ca8c804f9f9b17146a5b9f4f8799a596e9e3fc94174
font_02_sfnt_off00024c0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24C0E 16096 bytes
SHA-256: cbc07da60fb2daf063fa4a3b9b1c559b7679e5b06427c88e4eb51d57fd627648

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