Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f14281ca488c2e0…

MALICIOUS

PDF

90.3 KB Created: 2021-08-25 19:57:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: d14ae96d759547ca7c65c00385201d85 SHA-1: bbe9d59145bde269bd041d6222a5df3787202b15 SHA-256: 6f14281ca488c2e091a9e4550a91b95a5e0e22e61e32118a74dc638f3eebccb7
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The document contains numerous links pointing to compromised CMS upload storage and disposable hosting, suggesting it functions as a link farm. The primary purpose appears to be directing users to malicious websites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9923

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://websteravelandscaping.com/editorData/file/zodisewanezu.pdf In PDF document text
    • https://dancleland.com/img/upload/file/6967754555.pdfIn PDF document text
    • http://www.motionmantra.com/userfiles/files/35181606030.pdfIn PDF document text
    • https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/3bee2c0999af88b167fd1bb7542b4942/wamulaxifegif.pdfIn PDF document text
    • https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/fbv8f7i86s45u8gv1hhnnmi217/lajufiwelezilapusiwa.pdfIn PDF document text
    • http://tivatijapan.com/uploads/userfiles/file/32449106461.pdfIn PDF document text
    • https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/1611921dbf1a11---70714541125.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f73d185a980---vixemakumijogetaniluso.pdfIn PDF document text
    • http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/1611cdf0513a6d---28861837654.pdfIn PDF document text
    • http://vanharteyoga.nl/uploads/files/40424005503.pdfIn PDF document text
    • http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/16097cf7b1d55f---43109343473.pdfIn PDF document text
    • http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081e35a990fd---97956535879.pdfIn PDF document text
    • https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/hhturcssk7ko2bkvsnb13ubt6o/pamazukikixavom.pdfIn PDF document text
    • https://deniz-sogutma.org/img/userfiles/file/dunivekesazadonolu.pdfIn PDF document text
    • https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a155aba9fc9---lutagakojolexobadikoz.pdfIn PDF document text
    • http://singer-island-condos.com/userfiles/files/44359511925.pdfIn PDF document text
    • http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa94e9f0a71---sanerukane.pdfIn PDF document text
    • http://dgjinhak.kr/DATA/upload/files/202108031046331374.pdfIn PDF document text
    • https://orkhaconstruction.com/wp-content/plugins/super-forms/uploads/php/files/2q07nh5gfcfh6ghpb7nek3buba/73055640418.pdfIn PDF document text
    • https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607d2a549bf9b---xibaramutexoruz.pdfIn PDF document text
    • https://artbynela.com/uploads/file/wekopamuses.pdfIn PDF document text
    • http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1611ec8af95fc6---64649882627.pdfIn PDF document text
    • http://xn--365-pn7mwb654m2qn.com/ckupload/files/maneguk.pdfIn PDF document text
    • https://www.lightingdynamics.com/wp-content/plugins/super-forms/uploads/php/files/3e512ec509e402139fec55e1218bd398/tuvafexefuxanojifatigonak.pdfIn PDF document text
    • http://7seapharmtech.com/Uploadfiles/files/56313980433.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=the+first+cloned+sheepPDF link annotation
    • https://medlineplus.gov/cloning.htmlIn 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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e308.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE308 17052 bytes
SHA-256: 46af47f8301ef157516f32ff580a6d89953a049693a963d47b9c4a569069ca97
font_01_sfnt_off00010f84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F84 10520 bytes
SHA-256: 8846ef7aaf4469f8db77d1b901e006bf8227d540edba654aca3775e1f0b057b7
font_02_sfnt_off00012763.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12763 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_03_sfnt_off00013f74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F74 17840 bytes
SHA-256: 195853b2bd1f718939f38e73e659a47a64681af3a03c8a363c37053e2a7addf3

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