Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e09a33168b2b023…

MALICIOUS

PDF

73.7 KB Created: 2021-02-17 06:57:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 968cf1bf591f02f8d203df7849711339 SHA-1: 2088d836d6bfa6b6f46826bd32590672af5538ef SHA-256: 3e09a33168b2b023f71dc24b216718503506889c8a919e3ad4603ffacc0baf1c
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, and ClamAV detection identifies it as a phishing trojan. The document body, though heavily obfuscated, contains text that appears to be a lure related to the bent pyramid, suggesting a phishing or credential harvesting attempt. The presence of an external URI indicates an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://druttle.ru/123?utm_term=what+is+the+bent+pyramid+made+out+of PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387814/normal_6021aa78bf939.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480897/normal_5fedffb7e6192.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446642/normal_60003beda1381.pdfIn PDF document text
    • https://xisofufewazexi.weebly.com/uploads/1/3/0/7/130776718/peranopeter.pdfIn PDF document text
    • https://kajubogoxin.weebly.com/uploads/1/3/0/9/130969430/5080d8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405419/normal_5fe309c24312a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481411/normal_5fca8a13d6061.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376599/normal_5fc6720fedd6b.pdfIn PDF document text
    • https://dezusopivelisuk.weebly.com/uploads/1/3/4/7/134734284/363d7b14d60.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418991/normal_5fca5de843bf1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447436/normal_60238345e3127.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/timeziso/fesuxudiwalulasavonurik.pdfIn PDF document text
    • https://s3.amazonaws.com/gotenukevepunin/wenozikabigovo.pdfIn PDF document text
    • https://s3.amazonaws.com/jarirotexab/proper_date_format_uk.pdfIn PDF document text
    • http://bepinutarefe.rf.gd/vepaxumedapimix.pdfIn PDF document text
    • https://s3.amazonaws.com/jitimesolagun/cascade_information_synonym.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/cancionero_catolico.pdfIn PDF document text
    • https://s3.amazonaws.com/goviwigax/kapavavugijexujotob.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e4d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4D5 5504 bytes
SHA-256: e84f5e2c68857388fe1e781d890ad173182061e69fc01c008df83503ab60ca45
font_01_sfnt_off0000f76d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF76D 10084 bytes
SHA-256: 863580d5073f871f129807ff6058e5b69bb29c9281d321abb79534c4b077c580

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