Malicious PDF — malware analysis report

Static analysis result for SHA-256 e32b407281f86c4f…

MALICIOUS

PDF

73.5 KB Created: 2021-03-17 19:27:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 09da9160e4ccc09b26fb687867f36477 SHA-1: 55ccbe0345bfb5e57f5d38777ae1486b6a6216e1 SHA-256: e32b407281f86c4f2de6aa25ca69c3261908800d0bd7d7b2bad4f9df8de8a15c
96 Risk Score

Malware Insights

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

The file is a PDF document that contains multiple embedded URLs, one of which is directly referenced in the document's metadata. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware delivery. Although no scripts were explicitly extracted, the presence of numerous external URIs suggests the document is designed to redirect the user to malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://pelibifir.ru/award?keyword=difference+between+idealism+naturalism+pragmatism+and+realism+pdf
    • http://daddytestit.xyz/commercial_lease_termination_letter_landlord_to_tenantcjbxk.pdf
    • https://razivejinizefid.weebly.com/uploads/1/3/4/6/134610508/7234436.pdf
    • http://ledimpress.biz/finezllkdb.pdf
    • http://lirelejavebot.iblogger.org/wujagepidafepafirorovolu.pdf
    • https://cdn.sqhk.co/vimewiki/e3wPggM/22079343203.pdf
    • https://novufetus.weebly.com/uploads/1/3/4/1/134131343/funarefu_puwumex_fogusoxikig_nilimufukazot.pdf
    • http://reduslim-officialsite.site/92707133914ftaz9.pdf
    • https://cdn.sqhk.co/wuvotalek/gTiddha/buwekek.pdf
    • https://cdn.sqhk.co/loxowopiv/iaM9wid/dragon_quest_of_the_stars_vocation_guide.pdf
    • http://povenom.22web.org/davuvuzivupotutodiriji.pdf
    • https://gemuvubakada.weebly.com/uploads/1/3/4/4/134494784/543881.pdf
    • https://cdn.sqhk.co/nazixasinuti/GjdkNnG/football_manager_2020_mobile_download_gratis.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/popisiburewixuj/sunaliponuduzujapobitote.pdf
    • https://s3.amazonaws.com/nafibanefexex/agneepath_old_songs.pdf
    • https://s3.amazonaws.com/jemisajoda/50985848737.pdf
    • https://s3.amazonaws.com/lawakux/how_to_change_language_parrot_mki9200.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_off0000def7.bin
1cbb63dcd507828ff389e33bd4d81aa745bb7087e038bfcbd28caadb4f4d14f2
pdf-font-stream PDF embedded font (sfnt) at offset 0xDEF7 5708 bytes
font_01_sfnt_off0000f260.bin
62e61684ad8d282731253d4a9fe6611361ebc4717c770628d311bda8f790d2a0
pdf-font-stream PDF embedded font (sfnt) at offset 0xF260 10564 bytes