Malicious PDF — malware analysis report

Static analysis result for SHA-256 68068d3013dad63c…

MALICIOUS

PDF

96.0 KB Created: 2021-05-24 04:20:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 7aa229e1e3a6653bcda9f6d446daf4d1 SHA-1: 8beaee0a66a0d2e1d7c4c76842b237e0523e6246 SHA-256: 68068d3013dad63c741c9ed2f9e185cfafb48f3a4c0f316115427d3b5808a8af
104 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 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 0.9993

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
  • 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://druttle.ru/strik?utm_term=english+grammar+book+free+download+in+hindi PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4409797/normal_60372ff78eb60.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424009/normal_600403b174740.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426687/normal_601593431d9a9.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
    • http://fedorahosted.org/lohitIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d7c2257-9e58-44a0-91a9-d1031688060f/55246307692.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5cbc7598-7de0-4335-b0cd-d47c2123f040/hp_p2035_error_lights.pdfIn PDF document text
    • https://s3.amazonaws.com/sixenogafopoj/21322105118.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d469685-49f4-4f95-a9c8-4d446fb687b9/equal_employment_policy_examples.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be2e55cb-c5b6-4369-a7ff-6ac4f4449111/wendys_small_frosty_nutritional_information.pdfIn PDF document text
    • https://s3.amazonaws.com/wurivuve/vomidesujodi.pdfIn PDF document text
    • https://s3.amazonaws.com/moduxanakuri/doss_bluetooth_speaker.pdfIn PDF document text
    • https://s3.amazonaws.com/fojaxexino/ergonomic_assessment_form.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/44cd1bd2-5755-465a-bb6b-3a1a3160624f/43515365978.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3058ed2f-e218-43e6-896a-84770ee8aef9/16284630717.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5677b9f6-9e2f-46dc-9ace-796618ef343b/pijije.pdfIn PDF document text
    • https://s3.amazonaws.com/vufuzewasi/dragon_s_dogma_online_alchemist_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/426e1c72-c3d1-43e1-93d4-9620bc5f466f/behind_the_formaldehyde_curtain_analysis.pdfIn PDF document text
    • https://s3.amazonaws.com/vibuvomomuv/songs_of_bharat_ming.pdfIn PDF document text
    • https://s3.amazonaws.com/vonutavekip/84144981959.pdfIn PDF document text
    • https://s3.amazonaws.com/vuliwisuwig/modal_verbs_examples_mustnt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/45e55f92-d647-4481-9bf5-d44ea3acef21/present_simple_vs_present_continuous_multiple_choice_exercises.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/139e2bc2-05f0-4ddb-83d6-7a29762e6425/medium_salted_caramel_hot_chocolate_dunkin_donuts_calories.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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000117d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117D8 5280 bytes
SHA-256: 29f737e4252accc0fe47e2bd9a19f74f1ff8f70483ecbba251121da3281aabc4
font_01_sfnt_off000129a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129A1 12004 bytes
SHA-256: 7bca7b948e95e22eba0708bb036383d6e84628d5c6fe7bc54b544db320497330
font_02_sfnt_off0001521d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1521D 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71
font_03_sfnt_off0001601d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1601D 4944 bytes
SHA-256: 8c97be2843650d40755af895f8d20255cd6cf753221f1bfdf76a2afa64ded7f1