Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff01fcab584bff50…

MALICIOUS

PDF

77.1 KB Created: 2021-03-16 11:06:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fcb9ad9193bb83fcc2e4b84fccc6b2a7 SHA-1: a3e32766986e26c3ff1565f4e2ed6775922a2914 SHA-256: ff01fcab584bff500ecb3d1393dfc71239338f1d3895d7e454d7aaa991cb8783
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, identified as a phishing attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were extracted, the presence of a malicious URL within the document body suggests it's designed to redirect users to a phishing site, likely as part of a spearphishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://bologen.ru/award?keyword=boxing+training+drills+pdf
    • http://anarchymedya.com/how_to_start_contempt_of_court_proceedings7pf4e.pdf
    • http://microbladingeyebrowsdallastx.com/935832080053aufm.pdf
    • http://istlan.fun/387842566626gh8j.pdf
    • http://lyudi23.ru/5346601975xpswi.pdf
    • http://pshcomonhere.xyz/botuxavotorowesan1jny.pdf
    • http://b4shop.icu/kikagajar8psnx.pdf
    • http://kreativoblako.com/29269714186ayl8u.pdf
    • http://bomezifubaf.iblogger.org/64935448972.pdf
    • http://shop-kid-toys.online/screening_of_antiarrhythmic_drugsfgs83.pdf
    • http://wemedimixodi.iblogger.org/55892336121.pdf
    • http://nubolutlion.xyz/77754628127ulej7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/divexikav/discharge_summary_template_mental_health.pdf
    • https://s3.amazonaws.com/rizoli/presto_dehydro_digital_electric_food_dehydrator_reviews.pdf
    • https://s3.amazonaws.com/xomepixo/baahubali_3_video_song.pdf
    • https://s3.amazonaws.com/toliwudalamem/mechanical_energy_storage_seminar_report.pdf
    • https://s3.amazonaws.com/fekife/record_of_employment_forms_ontario_canada.pdf
    • https://s3.amazonaws.com/xotomisen/tolegezaxen.pdf
    • https://s3.amazonaws.com/pomaxa/pilanuduzevoduwekefazop.pdf
    • https://s3.amazonaws.com/risalenefazozo/16290828771.pdf
    • http://kiwozoma.epizy.com/jamidavijeso.pdf
    • https://s3.amazonaws.com/jinotugiwomo/harvard_referencing_guide.pdf
    • https://s3.amazonaws.com/jemisajoda/nagikuvasuwifobekagido.pdf
    • https://s3.amazonaws.com/tonemakopinibem/sisodosopiga.pdf
    • https://s3.amazonaws.com/lofese/do_you_have_to_have_a_lawyer_for_a_trust.pdf
    • http://nototen.epizy.com/vopufolovijovemipe.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f087.bin
989268e2b3d18960ae3d73125a9c5d133a128c00f6a9b2748f1753a4fc2714c1
pdf-font-stream PDF embedded font (sfnt) at offset 0xF087 5324 bytes
font_01_sfnt_off000102bf.bin
5a8c268a675ab94d3b401d074119420c5501b9125e44144006280b46388bd6ac
pdf-font-stream PDF embedded font (sfnt) at offset 0x102BF 10388 bytes