Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e4294b2d7827f08…

MALICIOUS

PDF

94.6 KB Created: 2021-07-28 00:35:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 60ebcec50bf79b2a513bcea265e42f32 SHA-1: d5f31987ada92e4ad3d9e19687abcd1dcd2eec1b SHA-256: 7e4294b2d7827f083e9dbaa79a3a2065ab2d1b9c1d5d9ff309e32620cdecc735
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external sites, many of which are hosted on compromised WordPress installations or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of a ClamAV detection for 'Pdf.Phishing.Trojan' and ML classifier flagging further supports a malicious intent. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure points to a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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 https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/dbfeb5c06b2cc5c08cd3625adae56b2d/397397377.pdf In PDF document text
    • http://www.thaiboat.net/image/upload/File/kakifaxinaweje.pdfIn PDF document text
    • http://bandenplaats.nl/cmsimages/file/wodaguj.pdfIn PDF document text
    • http://makinsushi.com/uploads/files/rezasoz.pdfIn PDF document text
    • http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c73a2a4b64f---kukedibimulovasu.pdfIn PDF document text
    • http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a0a3eca2550---19273454174.pdfIn PDF document text
    • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/16085dff2295a3---93966419174.pdfIn PDF document text
    • http://musikpark-live.de/userfiles/file/tojozaxupibi.pdfIn PDF document text
    • http://xn--vb0b83rba554gca.kr/page_data/file/20210522093511.pdfIn PDF document text
    • http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb7ced4d11---89466557799.pdfIn PDF document text
    • http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/160a0afa247e80---36133134554.pdfIn PDF document text
    • http://ibtaker.ps/userfiles/file/96948996294.pdfIn PDF document text
    • https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/19381dd9beef642d863d4322c29f7833/54511039533.pdfIn PDF document text
    • https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ec4c283ace0---33584818308.pdfIn PDF document text
    • http://juniorsmagazine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607016fe78e7d---46118988330.pdfIn PDF document text
    • https://alihuata.com/userfiles/file/vorewi.pdfIn PDF document text
    • https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c25426222d---49791382697.pdfIn PDF document text
    • http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b829b311320---42470920507.pdfIn PDF document text
    • https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/fb137e39d4737f7b0ac5d7e4be6908a1/24306626002.pdfIn PDF document text
    • https://bucatariizidite.ro/printuri-fi/files/borebolokud.pdfIn PDF document text
    • https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/beff3f55199f76e1682182d9453df638/nubekelegigimatasizobetig.pdfIn PDF document text
    • http://traiteur-ribot.fr/userfiles/file/71157887240.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=underworld+blood+wars+full+movie+download+in+tamilPDF 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_off00010bbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BBC 18364 bytes
SHA-256: 065e40ca2c97b6ce954e9234a5b87bd611345dbcc4d91c2ce21410d86e219566
font_01_sfnt_off00013b36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13B36 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001534d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1534D 10912 bytes
SHA-256: 9ba92ca46775d11ae74b56cbf99bfbbe674dfdc69a08a5c2cfccf3b7ed5b52c0

Open this report in the interactive analyzer, or submit your own file for analysis.