Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b2f81ccb014b2ba…

MALICIOUS

PDF

73.4 KB Created: 2021-02-15 12:54:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 035a7f40bd16f84f1c02374c43cfbe80 SHA-1: c114cda6b140454030a35a037b23034ad0a0e763 SHA-256: 6b2f81ccb014b2ba6a1d76fb546f2c4ffb8f73de30a0887ec0b5bfc70a847e5f
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, likely intended to redirect the user to a malicious site. ClamAV and ML classifiers flagged this PDF as malicious, indicating a phishing or trojan payload. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to exploit user interaction for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wb?keyword=john%20deere%20950%20tractor%20fuel%20filter PDF link annotation
    • http://minosiw.22web.org/fixux.pdfIn PDF document text
    • http://blockhcain.host/calisto_y_melibea10se2.pdfIn PDF document text
    • http://wei-nmvc.com/kixuboru3h2z.pdfIn PDF document text
    • http://ergors.space/consignment_account_questions_answersgvcuq.pdfIn PDF document text
    • http://phulop.store/3841737365o1slv.pdfIn PDF document text
    • http://hot-money.fun/279118637721sp4z.pdfIn PDF document text
    • http://reduslim-shopofficial.site/learning_upgrade_add_count_together67imn.pdfIn PDF document text
    • http://berkeciftci.net/247234017135ebu3.pdfIn PDF document text
    • http://furniture21.online/nios_exam_admit_cardsnozi.pdfIn PDF document text
    • http://letxxnx.org/wifuteluwitogakokabazaralqs3wn.pdfIn PDF document text
    • http://wisecreditscore.info/free_internet_app_apkyktig.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/kijelopazekune/95994622932.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/lovely_nirman_sad_song.pdfIn PDF document text
    • https://s3.amazonaws.com/janodojivi/runescape_3_99_fletching_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/bogeguva/chopin_ballade_op_23_sheet_music.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_off0000e148.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE148 5344 bytes
SHA-256: 0f9ebe6688567805ffaacc02952ca535cdbe61e9f00f1d5e98f58b375e8e768d
font_01_sfnt_off0000f372.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF372 10916 bytes
SHA-256: 26fd85042a33ae8e9f37dcf759d36e2ee50d55de7c20950436164a30e8af1af0

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