Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d506bd661efff81…

MALICIOUS

PDF

78.8 KB Created: 2021-04-04 04:48:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 60cbb91e695bb769d8ed0a1f4d0f1a91 SHA-1: edce9f7a3b4df42b026fb0c1ba71f2e999841665 SHA-256: 0d506bd661efff814707e5930fe0b6a94fee053f193a73998557b2e7d46175d0
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely intended to host a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, appears to be related to the search query, suggesting a social engineering lure.

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://jottigo.ru/strik?utm_term=how+do+we+meet+victor+frankenstein+quotes PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365570/normal_601f57542aa83.pdfIn PDF document text
    • https://cdn.sqhk.co/pufuxogife/RiaibHO/rome_barbarian_invasion_best_faction.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458839/normal_601fd2e5ae7b3.pdfIn PDF document text
    • http://fopemotizikaj.iblogger.org/79463695541.pdfIn PDF document text
    • http://sepibigejakina.22web.org/gedanelujit.pdfIn PDF document text
    • https://cdn.sqhk.co/woledibiroju/jeUMQOf/kiko_running_sushi.pdfIn PDF document text
    • https://cdn.sqhk.co/nozedimasav/KwT9iiu/iifa_awards_2019_free.pdfIn PDF document text
    • http://kaxavetaxudu.mywebcommunity.org/30531998783.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385427/normal_5fc5cba411735.pdfIn PDF document text
    • http://lobabinuladeri.medianewsonline.com/gafefolumavokisebira.pdfIn PDF document text
    • https://cdn.sqhk.co/nububufi/f83gdms/stickman_superhero_shadow_fight_mod_apk.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/gagotaniwipure/sobezubikebezukifemuja.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4decce2f-ea69-48a6-9336-f5cd88495644/bujaroduzewor.pdfIn PDF document text
    • https://s3.amazonaws.com/telasebisu/8_hour_diet_cheat_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/nitirew/baunvo_baden-_wrttemberg.pdfIn PDF document text
    • https://s3.amazonaws.com/zolerazowubow/clasificacion_derecho_internacional_privado.pdfIn PDF document text
    • http://vezubigaru.rf.gd/nusekagenunoxebojejama.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e38aa45a-ffd9-47ea-98f7-c7f49d99be16/grohe_ambi_chrome_kitchen_monobloc_tap_installation.pdfIn PDF document text
    • http://pozajuw.atwebpages.com/accounting_equation_rules.pdfIn PDF document text
    • https://s3.amazonaws.com/gupawupigawono/new_bhojpuri_movie_sangharsh_2019.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_off0000f368.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF368 5436 bytes
SHA-256: fec90e8171ffdf05649a3d8c3024806f4839d3a09efb5b34c507c2719797050f
font_01_sfnt_off000105e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105E0 11360 bytes
SHA-256: 20490ee1e9cf57cfd25441e6467518f4d0cae2637f42659153fe4f0e02c50fee

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