Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dabed7f776175d3…

MALICIOUS

PDF

80.4 KB Created: 2021-03-12 02:04:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 921e8caf5dc1033feff1fb07560135d6 SHA-1: 0f5f35eb93cb764a15f663f77bbbfb8be344034f SHA-256: 1dabed7f776175d38cfefc13f395aac93e6012df721369a9347053bc35303558
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a phishing site disguised as a product page. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or credential harvesting. No scripts were extracted, but the presence of an external URI points to a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://kuzutuzo.ru/123?utm_term=charisma+sheets+microfiber PDF link annotation
    • http://pedrons.space/what_does_the_pear_tree_symbolize_in_tewwgykj8a.pdfIn PDF document text
    • http://natgood.space/tuvibitedoxabaruxulazarm570l.pdfIn PDF document text
    • http://juwupexutaval.mywebcommunity.org/technics_sl-1210gae_price.pdfIn PDF document text
    • http://zujewubowufonug.scienceontheweb.net/2021373688.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480905/normal_5fd6804d76234.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456989/normal_5fd947afcccd8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406473/normal_603808930f7d6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385217/normal_6039fedd56ba5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490523/normal_5fd044eab5528.pdfIn PDF document text
    • http://wudebakafepi.mypressonline.com/yardsticks_book_used.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476272/normal_600f9f176fd99.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://sitafefisoju.atwebpages.com/dish_network_channel_guide_local_channels.pdfIn PDF document text
    • https://s3.amazonaws.com/vufuzewasi/18105790287.pdfIn PDF document text
    • https://s3.amazonaws.com/bevarolimesale/jovajebomopapuwagudaxeze.pdfIn PDF document text
    • https://s3.amazonaws.com/zoluwivebiro/lepeteseri.pdfIn PDF document text
    • https://s3.amazonaws.com/nawosineromigi/arabesque_no_1_free_sheet_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68174e57-0c75-4cee-957f-5d87a3ec69d9/important_quotes_from_the_importance_of_being_earnest_explained.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36d576a3-92c1-467e-9b7b-bcb7b4280009/krome_studio_plus_app_store_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1f2f4fd-e3e2-43ce-ac97-2c35d055fa2e/70952271027.pdfIn PDF document text
    • https://s3.amazonaws.com/moduxanakuri/radunolipixeboruwovedekom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26f15834-789c-434f-bd90-a836a4e7795e/what_were_2_major_causes_of_the_european_renaissance.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ceee2665-5a83-4308-9996-2f362c6d6d58/is_the_stand_at_paxton_county_a_true_story.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_off0000d784.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD784 4932 bytes
SHA-256: 1c7eb01bf507f7ca5ec1a6ba469c42a09befa9ff6f25353a6169ec50ad101f3b
font_01_sfnt_off0000e848.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE848 11560 bytes
SHA-256: 38d031f9476504c59dc1b4a848014f01e356798da10c3db5ca3887283a7f7bea
font_02_sfnt_off00010f55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F55 16164 bytes
SHA-256: 3afbc95f4a2677bf4c8b77bd7df62e4dbeb651db4b5e482cf97b58e472170d58
font_03_sfnt_off0001244e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1244E 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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