Malicious PDF — malware analysis report

Static analysis result for SHA-256 483bb6dd3654c5a4…

MALICIOUS

PDF

64.0 KB Created: 2020-12-15 21:10:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: b52abc514503808521620d02148a4526 SHA-1: 2ce4689206fecfed0ebfe011fff9786b72826402 SHA-256: 483bb6dd3654c5a4d5be3cd6155ee5e48d24e4b838425f17bce71395d07ac5ff
96 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 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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafffe.ru/strik?utm_term=fundamental+analysis+pdf+nse PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4486969/normal_5fcdec6d13803.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377936/normal_5f96745d5182a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485173/normal_5fc4dcb82e94c.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
    • https://s3.amazonaws.com/pisik/bodybuilding_anatomy_free.pdfIn PDF document text
    • https://s3.amazonaws.com/nedijowewoded/vasoxefasuzog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba866c98-7de8-4107-b09d-61458a8b8418/blaine_milam_blog.pdfIn PDF document text
    • https://s3.amazonaws.com/wunupalezozerud/cspa_reading_test_answers_2016.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1896a46-b497-4ddf-9fed-c25b81d5ff1f/eso_provisioning_leveling_guide_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/mexavofezoxi/cricket_champions_cup_2017_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/voxazedisula/63327790516.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3760feea-c23f-4e22-a806-03b21723ef4c/8371219882.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_off0000b137.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB137 4920 bytes
SHA-256: daef06a5bd7adc3595105ae9161a2d5d019ea0d65d2ea37fd78e33572dae3759
font_01_sfnt_off0000c1e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1E7 10448 bytes
SHA-256: f1ba7fc4b1b32b2b456e582bca6cf10e2f6828efb4a39049bf19494687efef01
font_02_sfnt_off0000e567.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE567 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e