Malicious PDF — malware analysis report

Static analysis result for SHA-256 071268db2774920c…

MALICIOUS

PDF

74.0 KB Created: 2021-02-24 22:13:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: b75f5fe35b7ba67174a8cb0e9d44e915 SHA-1: ede66eb034d0a35c240ca1dea91945e4ab09b0f6 SHA-256: 071268db2774920cc96807635896aab10aee788e6fbd0ecf390189d73f49f4e4
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, and ClamAV detected it as a phishing trojan. The ML classifier also flagged it with high confidence. While no scripts were explicitly extracted, the presence of external URIs and the overall detection suggest the document is designed to redirect users to malicious content, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/strik?utm_term=what+are+the+ten+deadly+sins+in+the+bible PDF link annotation
    • https://cdn.sqhk.co/safubuguva/Agdpnif/47061100794.pdfIn PDF document text
    • https://cdn.sqhk.co/kufalavoxig/gf4qhdp/ghost_pic_prank.pdfIn PDF document text
    • https://cdn.sqhk.co/mojupesonon/MOjeQjg/aamc_mcat_score_percentiles.pdfIn PDF document text
    • https://cdn.sqhk.co/ximirujusuxo/J7viggh/liverpool_fc_football_transfer_news_now.pdfIn PDF document text
    • http://bullbananavannaone.xyz/napebolarth9p.pdfIn PDF document text
    • https://cdn.sqhk.co/menodotitit/Uviftja/td_auto_finance_payoff.pdfIn PDF document text
    • https://cdn.sqhk.co/dajeluparoso/jfPzjjq/puvaxigizinegij.pdfIn PDF document text
    • https://cdn.sqhk.co/kerosumumato/geiejef/kick_the_buddy_mod_apk_no_ads.pdfIn PDF document text
    • https://cdn.sqhk.co/zewezerezi/QqKgj5r/lime_crime_diamond_crushers_gemini.pdfIn PDF document text
    • https://cdn.sqhk.co/puvegipuros/6LtzWxc/samsung_voice_recorder_apk_marshmallow.pdfIn PDF document text
    • http://devlp.design/27859547215cxbs6.pdfIn PDF document text
    • https://cdn.sqhk.co/xasakeza/6gjejfR/soccer_prediction_football_all_app.pdfIn PDF document text
    • http://igme.site/28055386528aiywg.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/lukepepe/read_the_bible_in_30_days_app.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_off0000e444.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE444 5168 bytes
SHA-256: 0239b5dcef43d5d850e36828770d9217b0ae5a57db8f1c3d3a75b985379e8c28
font_01_sfnt_off0000f5df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5DF 10820 bytes
SHA-256: 62e81b7ded19ebd338304b526020bdb5dc8f2e23498b2dc19ecd1e2328818e6b