Malicious PDF — malware analysis report

Static analysis result for SHA-256 87f83bd5704c8d23…

MALICIOUS

PDF

69.4 KB Created: 2020-12-10 04:25:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 604351977f35562b56e9e497c8eda986 SHA-1: 2077e94d22bc7358c13fe55ff708981d8c9ff65e SHA-256: 87f83bd5704c8d2352bba8fc147720e2a8baf9b43bf190bd4545543db5f93cd1
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 0.9997

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://traffnew.ru/strik?utm_term=boss+12+ss PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a7b43f8-3286-4a00-9489-2b067992813c/kuxiluliwagi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f251c90-5108-4d95-a606-d33ddb064d2d/word_with_the_prefix_retro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3941e6e4-c483-4d96-bdb0-017bc43516d1/nafonudokudud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/204da3c4-91ba-4f21-8385-f86e259b7e3b/alterac_valley_rep_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1b175e5-2baa-4bd2-ae75-ebc0015e533a/criterio_de_routh.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc576008ef7301f8b2fc014/t/5fcad38033fb14715cae5698/1607127937328/xuvofip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/677a8c72-434a-4aa7-a8ff-bee1a4ecd7b8/pastoralism_definition_geography.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0baae3dfdd95b60d439b1/t/5fc2787fe18c5c478e4b9041/1606580355528/48230682169.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc527e6403f5353fdb14542/t/5fd0338ecb6bfe602c4874cf/1607480206501/acrylic_nails_at_home_kit_uk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e854b656-f695-436c-9b3f-8e722302830a/9279322871.pdfIn PDF document text
    • https://s3.amazonaws.com/bulikowexunepov/white_county_high_school_georgia.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzakifezara/wow_horde_mount_collecting_guide.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cbbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBBD 2940 bytes
SHA-256: 98626d7e946c09f9c239f2fa3d396c2da29ca55acac7f7566b4f25ec4811e40e
font_01_sfnt_off0000d649.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD649 4572 bytes
SHA-256: a98dee1dc63a101bf3d9f782e279f641556c922c564d2e14c1db0946c2220651
font_02_sfnt_off0000e5f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5F9 10288 bytes
SHA-256: 7b2e6713de45254a084acc700876d129fd89c08a6e4de92baf8b978b2ca01e77

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