Malicious PDF — malware analysis report

Static analysis result for SHA-256 eda0ceae09925fde…

MALICIOUS

PDF

124.2 KB Created: 2021-07-14 00:16:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-13
MD5: 71a42d4d1d2bcf58053c72b3318611e5 SHA-1: df5ee63726b713e038101b8c4248d0302b1e52b7 SHA-256: eda0ceae09925fde4feb3102f2bf6d3b25c70e5b4da6a6e025034e3b5348f4e8
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The sample was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to numerous distinct hosts, many of which are associated with compromised WordPress uploads or disposable hosting. The presence of a URL related to 'cod mobile free battle pass hack' suggests a potential lure for gaming-related scams or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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 http://abogadosaguilar.com/ckfinder/userfiles/files/pokimazojenunizoxevi.pdf In PDF document text
    • http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160da75dc84522---pepababuxalifumujegim.pdfIn PDF document text
    • https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/b4ea26b6b58e858b402a22fba0dbc1d3/lizixufar.pdfIn PDF document text
    • https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b27da6a9fb6---86407646188.pdfIn PDF document text
    • https://brahmagnanam.org/fck_uploads/file/ribevututibozogomuwe.pdfIn PDF document text
    • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/b701be2caa6c4f230036d64546bff724/91244714619.pdfIn PDF document text
    • https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/2cf34f2be21ea0e5e08cd2362756c5a7/20784953335.pdfIn PDF document text
    • https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/n8bkqah3v5gc5ihoql7gg9kph4/4213286854.pdfIn PDF document text
    • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/160bd957132d61---15345901156.pdfIn PDF document text
    • http://kaupa.cz/userfiles/file/gajetanajakazerofebivox.pdfIn PDF document text
    • https://www.herewardcarpets.co.uk/wp-content/plugins/super-forms/uploads/php/files/p91ck3hnlpqapt850d2353ski3/vares.pdfIn PDF document text
    • https://alnahamgroup.com/userfiles/file/5925985521.pdfIn PDF document text
    • http://altaprecision.com/userfiles/file/xozodopijurag.pdfIn PDF document text
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607053b10c1d3---95226967480.pdfIn PDF document text
    • https://transport-vehicules.fr/userfiles/file/xopuxefujizutuzewajuji.pdfIn PDF document text
    • https://aplusadvance.com/naver_editor/data/file/75703175982.pdfIn PDF document text
    • https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/5ddcfa336e5f742ba391476da5f9dbe3/74809470504.pdfIn PDF document text
    • https://motacademy.it/file/gegixakigixaj.pdfIn PDF document text
    • http://tuzvedo.hu/elemek/file/gurovopawuvivetapefasipeb.pdfIn PDF document text
    • http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607afca01b9f4---91056906682.pdfIn PDF document text
    • http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160bc02318b975---64770691855.pdfIn PDF document text
    • https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/gc5hj8nb5gstjo7iefg338jp5d/20880586741.pdfIn PDF document text
    • https://kocarbon.vn/luutru/files/55960898465.pdfIn PDF document text
    • http://benedictinoselrosal.org/ckfinder/userfiles/files/jedisa.pdfIn PDF document text
    • http://yournamebadges.com/withyourdog/cms_uploads/file/pojan.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=cod+mobile+free+battle+pass+hackPDF link annotation
    • 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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00017ff5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17FF5 18560 bytes
SHA-256: 59d6ebb0db281cd52ca4a3bcdc8cc746aec126ab702c5f0f2937ce57e15ae9e9
font_01_sfnt_off0001b12c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B12C 11044 bytes
SHA-256: c6ad88e2dec9873d1862efdcff496f2277049cc1f1e647db4b04bf2c1a036ef3
font_02_sfnt_off0001caad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1CAAD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1