Malicious PDF — malware analysis report

Static analysis result for SHA-256 be23d32c120b2bce…

MALICIOUS

PDF

81.5 KB Created: 2021-03-17 18:53:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f320a267c209463b8e43d8788ee53f01 SHA-1: e0bbc9a6168d0580cf54946a0a4cece89cf8d9a5 SHA-256: be23d32c120b2bcec6395ef16740cbfc1a4229774122f211efac35dde64924a3
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious content. The embedded URL `https://jumiwimov.ru/strik?utm_term=the+looting+machine+chapter+summary` is a primary indicator of a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, aligning with spearphishing tactics.

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://jumiwimov.ru/strik?utm_term=the+looting+machine+chapter+summary
    • http://rotixumuzu.22web.org/nonton_film_after_met_you_2.pdf
    • https://piziwola.weebly.com/uploads/1/3/1/3/131382430/sufavep.pdf
    • http://lewoluxadet.iblogger.org/objetivos_de_auditoria_de_sistemas_informaticos.pdf
    • https://cdn.sqhk.co/vexedobasof/hczagdm/public_health_and_nutrition_degree.pdf
    • https://ganuzuvotaju.weebly.com/uploads/1/3/5/3/135304652/7358670.pdf
    • http://vimobewawulipiz.mypressonline.com/how_to_edit_your_book_yourself.pdf
    • https://denesibupu.weebly.com/uploads/1/3/0/7/130774977/tazumodovejokiwap.pdf
    • http://vizuwubifazezix.22web.org/vitulizojoro.pdf
    • http://rejamar.sportsontheweb.net/lolulamuw.pdf
    • https://popupobapovuzus.weebly.com/uploads/1/3/4/0/134012290/04e988.pdf
    • https://cdn.sqhk.co/guvelebul/sjaJOjg/torque_pro_obd2_car_apk_free_download.pdf
    • https://cdn.sqhk.co/tubadaluzafu/bhcpkZP/dotumojemetaga.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/5ed0075d-b478-48a9-b481-cf559bbbdb92/sig_sauer_sp2022_9mm_luger.pdf
    • https://uploads.strikinglycdn.com/files/a3ff8556-9ec8-4c66-94aa-6f8e18bf9347/zudofapeburokar.pdf
    • http://mibavipef.epizy.com/rob_dougan_clubbed_to_death_piano_tutorial.pdf
    • http://novisagaxorom.epizy.com/58421146996.pdf
    • http://mewarur.rf.gd/solovajodugiwifaturesovi.pdf
    • http://kexomun.myartsonline.com/85414687834.pdf
    • http://dikivila.epizy.com/lasko_20_cyclone_fan_with_remote_control.pdf
    • https://uploads.strikinglycdn.com/files/7efa88be-575a-4172-a33b-3c2aba023747/fuwonulokozufedinofazekag.pdf
    • http://kofepiropi.onlinewebshop.net/94767708857.pdf
    • https://uploads.strikinglycdn.com/files/ce0c5eea-22a4-4d99-bebe-8162302c6161/ge_spectra_electric_oven_parts.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_off0000fe4c.bin
cba2fae66257f2a86304694f15f2542d85c14859909d83b22f72a219c827bcd7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFE4C 5400 bytes
font_01_sfnt_off00011087.bin
5658642385e460b2cbec5d54f838d890b68ae767df335690c7950df3a64498aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11087 11624 bytes

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