Malicious PDF — malware analysis report

Static analysis result for SHA-256 97b33887e988a719…

MALICIOUS

PDF

100.0 KB Created: 2021-03-17 02:53:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2779206c7d54637098831d5c4255dd55 SHA-1: 757a5fe53cd9c5d7f1f9f51751a0b84fe75e1c4e SHA-256: 97b33887e988a7197c93fdca6ee2b9fb3faf444a9309fc3567c8c23aa33a2bd1
96 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one specifically identified as a lure related to 'inflight catering management'. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. While no scripts were explicitly extracted, the presence of embedded URLs suggests the document is designed to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://leonvi.ru/award?keyword=inflight+catering+management+pdf
    • http://universe1.space/the_royalty_family_calling_fake_video_calling4jfae.pdf
    • https://xedububedopo.weebly.com/uploads/1/3/0/7/130740082/7322108.pdf
    • http://gavediteriremuv.medianewsonline.com/aneurisma_de_aorta_abdominal_2020.pdf
    • https://cdn-cms.f-static.net/uploads/4365608/normal_5fe62c4f596c3.pdf
    • https://nefipoxitusi.weebly.com/uploads/1/3/0/7/130775115/faxovoxo.pdf
    • https://xogovowumo.weebly.com/uploads/1/3/0/7/130738979/pomobub.pdf
    • http://fokefetebebinin.66ghz.com/jovuzusoneti.pdf
    • http://dakisemakegag.sportsontheweb.net/91075617754.pdf
    • http://bemixenorekuji.22web.org/area_circumference_of_a_circle_worksheet.pdf
    • http://xenojupu.mywebcommunity.org/68171092202.pdf
    • https://cdn-cms.f-static.net/uploads/4447464/normal_5fd13113cc266.pdf
    • https://static.s123-cdn-static.com/uploads/4371783/normal_5fe025248699b.pdf
    • http://biolinkus.me/infinity_war_stream_hdsw0sp.pdf
    • https://cdn-cms.f-static.net/uploads/4421639/normal_602444a741fa5.pdf
    • http://zixivudu.getenjoyment.net/lunemunikawufajoda.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/kovezodepugov/7143939412.pdf
    • http://rebivik.epizy.com/mixed_punctuation_worksheets_grade_7.pdf
    • http://dukutogesedu.epizy.com/call_of_duty_all_parts.pdf
    • https://s3.amazonaws.com/papuja/kopireduperawokosite.pdf
    • http://fukovaxirukaxa.rf.gd/angielski_czasy_w_piguce.pdf
    • https://s3.amazonaws.com/betefowubevat/inception_movie_screenplay.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_off000147b7.bin
97685cd759086e0028fe51a6bbd2299049919b3fe0f53868a8973947d2411c55
pdf-font-stream PDF embedded font (sfnt) at offset 0x147B7 5328 bytes
font_01_sfnt_off000159b1.bin
eab53c85dfe6d1f57ad138efd56662831a06e5f64fdacacd0cf3fea7b5ac7d3c
pdf-font-stream PDF embedded font (sfnt) at offset 0x159B1 11888 bytes