Malicious PDF — malware analysis report

Static analysis result for SHA-256 a51025adcbf30feb…

MALICIOUS

PDF

75.8 KB Created: 2021-03-03 14:53:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 0cc647315a09b22c3a2845167099a429 SHA-1: 3ed2b2e76a81a8752b9fde382a5fbff6dcae8433 SHA-256: a51025adcbf30feb5bb4e192806eafa86af5bd50f8047920989a117c503af228
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that leads to a domain associated with malicious activity. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, 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://leonvi.ru/strik?utm_term=energy+work+robert+bruce+ebook PDF link annotation
    • https://cdn.sqhk.co/tigixexaxi/9jihigc/pipobivabetutixex.pdfIn PDF document text
    • http://dawexefif.getenjoyment.net/garmin_forerunner_405_gps_watch.pdfIn PDF document text
    • https://cdn.sqhk.co/bizufunido/esiaqhe/46823895711.pdfIn PDF document text
    • http://zuzorovix.scienceontheweb.net/68461283506.pdfIn PDF document text
    • https://cdn.sqhk.co/wevujawej/gfTgiyQ/nezaxetemugavobajemuxa.pdfIn PDF document text
    • https://cdn.sqhk.co/lepavenujal/MZU9bjd/online_durak_oyna.pdfIn PDF document text
    • http://fafijitesulexiz.mygamesonline.org/59278721845.pdfIn PDF document text
    • https://cdn.sqhk.co/wudawagirus/hahdiaQ/top_selling_song_of_the_90s_uk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wotisonuli.epizy.com/the_skillful_huntsman_visual_development_of_a_grimm_tale.pdfIn PDF document text
    • http://ruludamena.epizy.com/mevikutigovifixosup.pdfIn PDF document text
    • https://s3.amazonaws.com/kavalukato/bhojpuri_video_dj_ing_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/viwoxuz/kifewivugez.pdfIn PDF document text
    • https://s3.amazonaws.com/lawakux/koxiguzan.pdfIn PDF document text
    • https://s3.amazonaws.com/mijumomub/jawure.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_off0000eec6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEC6 4900 bytes
SHA-256: dd00d6bf214b2370b60788c0dbbc88134b396c1819da04a0b7f472b156613264
font_01_sfnt_off0000ffb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFB1 10132 bytes
SHA-256: cdc07a2ab8968002016c911b73edf3144bd45932706a45e961a60089c927b01a

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