Malicious PDF — malware analysis report

Static analysis result for SHA-256 32bc1e357e706cf0…

MALICIOUS

PDF

78.9 KB Created: 2021-03-07 01:33:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 150b04b920bfa0b93edde513c1f65dd0 SHA-1: d151ed87f69fa04255dc7c2ad368fb2d6741ebf3 SHA-256: 32bc1e357e706cf0f8077628bd743ad0ddbc609a0a699b0f49490955b14ab3fe
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, with a critical heuristic identifying a 'PDF_SEO_LINK_FARM' suggesting a large number of outbound links. One of these links, 'https://baarspo.ru/strik?utm_term=solution+set+example', is flagged as suspicious. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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/strik?utm_term=solution+set+example PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4443812/normal_604358f29268f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365626/normal_6026d1f171802.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/penale/46339754066.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f774aa8e-6a2a-4d8f-a3df-93e72f70caf5/how_do_i_get_the_radio_code_for_my_honda_civic_canada.pdfIn PDF document text
    • https://s3.amazonaws.com/gixirojozogufux/injury_report_packers_cowboys.pdfIn PDF document text
    • https://044e8d80-c429-4a1f-820d-9b443c65b389.filesusr.com/ugd/53c654_df7aa1e1e5624c798e86e444af703d25.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fodose/cake_recipes_cookbook.pdfIn PDF document text
    • https://c1d61d78-9bae-425c-b347-ee91470fe4f1.filesusr.com/ugd/60933b_ddfb75ed611d4044a55b7b66b4af1ef1.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/nefomojuwet/bollywood_mkv_movie_site.pdfIn PDF document text
    • https://s3.amazonaws.com/fowonaxul/job_interview_questions_and_answers_for_nurses.pdfIn PDF document text
    • https://1afae0f6-9e35-4dc9-9db7-5dbf78511926.filesusr.com/ugd/afe78f_a820a5c007cc4410b91782e2c5f229ac.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jigezilor/noble_quran_recitation_with_english_translation.pdfIn PDF document text
    • https://2f8a6ab9-e864-4757-b083-6627a13f4c48.filesusr.com/ugd/405339_73bd0f484ce34646942ce82f56be6a7b.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0076e59-fe0d-4bf1-8435-e3b0342d7148/how_to_use_focusrite_scarlett_2i2_with_garageband.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2ab9cef-e5de-43b1-a060-51cb2e467bcd/what_is_the_default_login_for_arris_router_sbg6580.pdfIn PDF document text
    • https://s3.amazonaws.com/zesixefe/82901500665.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f678937-ead1-488a-9b45-d604ba9b62c9/pressure_washer_servicing_near_me.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0ba7d64-f19e-4eb5-b8f6-17df4b52f945/samsung_un32j4000afxza_stand.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/803987c7-f702-4e21-b335-9196b04bfe23/74149432239.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_off0000e0c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0C2 5040 bytes
SHA-256: eb7e91f61a37467188f339e42d687fad69909e6ab868f04ee9ac3eb9ba1eeaca
font_01_sfnt_off0000f1dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1DC 11308 bytes
SHA-256: 0720cd8258bcb8a77cd1f215bbd541a982ab78dcddb0b59c7b8d3f329f089524
font_02_sfnt_off000118f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118F7 16204 bytes
SHA-256: 5492895600be819ddd1281a2f678298abd10f54ba72f2725db14bdbda630bc57

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