Malicious PDF — malware analysis report

Static analysis result for SHA-256 208a47d05c596652…

MALICIOUS

PDF

210.2 KB Created: 2021-06-08 19:20:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: a242f5fcc9dbd66d1f698ee2ad79038d SHA-1: ec3aa62744670d12e159b6a1f5209e1e52a2a48f SHA-256: 208a47d05c5966521313b6eaf80c4395eb5e73acaf13361ef72f676fa671367f
136 Risk Score

Malware Insights

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

The PDF contains a lure referencing 'Naruto vs bleach 2.1' and includes a high-risk heuristic for an SEO redirector link, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were directly extracted, the PDF structure and embedded URLs point towards a common phishing or downloader pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9792

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://smidgel.ru/pbw?utm_term=naruto+vs+bleach+2.1 PDF link annotation
    • https://dowusezawidi.weebly.com/uploads/1/3/3/9/133997386/benofizasaki.pdfIn PDF document text
    • https://kukixagunobi.weebly.com/uploads/1/3/5/3/135325453/ritogipozodanes.pdfIn PDF document text
    • https://fuvodaxe.weebly.com/uploads/1/3/1/3/131379021/sozuliwalovub_ramutivuju_roromulo_bozuwekawud.pdfIn PDF document text
    • https://nemaxololele.weebly.com/uploads/1/3/5/3/135304154/2019545.pdfIn PDF document text
    • https://duxebiforup.weebly.com/uploads/1/3/4/0/134013009/69c9a.pdfIn PDF document text
    • https://jasesokotu.weebly.com/uploads/1/3/4/4/134499989/902f4a08988.pdfIn PDF document text
    • https://mojivisosodarez.weebly.com/uploads/1/3/4/0/134096231/4364774.pdfIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sukagafamo.pbworks.com/w/file/fetch/144743175/majuxodarudugerapuranevi.pdfIn PDF document text
    • http://pajuxuse.pbworks.com/f/24060185761.pdfIn PDF document text
    • http://tewabavuxate.pbworks.com/w/file/fetch/144787944/56214649598.pdfIn PDF document text
    • http://molosafokaji.pbworks.com/f/67872892551.pdfIn PDF document text
    • http://kefatezalix.pbworks.com/w/file/fetch/144740778/77371681641.pdfIn PDF document text
    • http://pamotekegopa.pbworks.com/f/hollywood_movie_tamil_dubbed_free_download_tamilrockers.pdfIn PDF document text
    • http://gegoxelaw.pbworks.com/w/file/fetch/144809247/conners_rating_scale_online_scoring.pdfIn PDF document text
    • http://vuxoris.pbworks.com/w/file/fetch/144622803/tavubowi.pdfIn PDF document text
    • http://vulazojab.pbworks.com/f/57702353893.pdfIn PDF document text
    • http://wiwedano.pbworks.com/w/file/fetch/144427650/1432047970.pdfIn PDF document text
    • http://bevojoluvu.pbworks.com/w/file/fetch/144782340/anthony_de_mello_love.pdfIn PDF document text
    • http://kokupaxuto.pbworks.com/f/atheros_ar9002wb-1ng_wireless_network_adapter_drivers_windows_10.pdfIn PDF document text
    • http://nixefijevumu.pbworks.com/f/how_do_you_change_a_sentence_from_direct_to_indirect_speech.pdfIn PDF document text
    • http://mulasamesi.pbworks.com/f/70279701745.pdfIn PDF document text
    • http://xibosini.pbworks.com/w/file/fetch/144497184/gta_5_the_merryweather_heist_stock_tips.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://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00011774.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x11774 152140 bytes
SHA-256: a5de6ea437c03a86d2fbd6708212babeb4739b66bef02ebcf9798a3e97ba344f
stream_005_off0002e8ff.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2E8FF 11568 bytes
SHA-256: b1e4a4a10889bf8634e59245835a85303bb8e2629e0c3eed73f829e4c1dabd34
font_01_sfnt_off0002ce85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE85 5272 bytes
SHA-256: 2ffd40b775fe7213a5c6bc5cdfac284158295de6bd86cbceecee106c7c806cc9
font_02_sfnt_off0002e07b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E07B 1800 bytes
SHA-256: 51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0
font_04_sfnt_off0003090c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3090C 21000 bytes
SHA-256: be69aeacbc541877b64dd154e05248327f2beca6714d5c79db6d75ba1e38cc3b