Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0e0165fbca00054…

MALICIOUS

PDF

89.9 KB Created: 2021-08-14 08:30:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-13
MD5: fbaa7a0163cbb976ca17fac78374834a SHA-1: 660ba60ad4b752ab0c3562944c9eb515b2484e25 SHA-256: f0e0165fbca000547d3fb64d239f5f934c447d35b7d071e77cb4651914a370b1
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It functions as a link farm, containing numerous URLs that point to compromised websites or disposable hosting, likely intended to redirect users to malicious content or phishing pages. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a deliberate attempt to obscure the true destination through link manipulation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9876

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://huntic.ru/uplcv?utm_term=dolphin+deluxe+4+robotic+pool+cleaner+manual PDF link annotation
    • https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e8bb2dcd99c---49506553795.pdfIn PDF document text
    • http://savaksangida.com/resimler/files/vukuxajivegop.pdfIn PDF document text
    • https://bursac.net/userfiles/file/wolizofaxesubij.pdfIn PDF document text
    • https://christembassybarking.org/wp-content/plugins/super-forms/uploads/php/files/aecceca9d8ecf8576be9a918737bef69/dabenikilipitigemusozeg.pdfIn PDF document text
    • http://elektromig.pl/userfiles/file/87027117341.pdfIn PDF document text
    • https://rosemonttherapy.health/wp-content/plugins/super-forms/uploads/php/files/mb23sfhql7is80ri6u71rbh3et/zuvinavotedepoxugize.pdfIn PDF document text
    • http://xn--80aagkbrca3apkgkee0a1bi.xn--p1ai/ckfinder/userfiles/files/bavazef.pdfIn PDF document text
    • https://viettrungson.com/media//Files/1690467289.pdfIn PDF document text
    • http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080cf6b78f82---rufutebapapitiralut.pdfIn PDF document text
    • http://movietek.vn/hinh-anh/files/xazoresulovapev.pdfIn PDF document text
    • https://hosvagyok.hu/userfiles/file/lolukabejemawuxojipipewo.pdfIn PDF document text
    • https://airbays.com/userfiles/file/37106051551.pdfIn PDF document text
    • https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/bbed70fdd301bde5a4e99eb677481886/4173749060.pdfIn PDF document text
    • http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160887fc43ae1f---48015477297.pdfIn PDF document text
    • https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a268ae2accc---pumixijozodizupulasum.pdfIn PDF document text
    • https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/d646e445f0c5350e0a4208d7cacded06/97570519882.pdfIn PDF document text
    • http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160708def80d25---62893326711.pdfIn PDF document text
    • http://tehpromyar.ru/media/file/fugejagixipififotu.pdfIn PDF document text
    • https://razdolle.by/wp-content/plugins/super-forms/uploads/php/files/9k1fehcop7q3i6l5qapldv22n7/89565901978.pdfIn PDF document text
    • http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f75d841ee0---xaradebiwew.pdfIn PDF document text
    • http://sewakendragroup.com/userfiles/file/zerul.pdfIn PDF document text
    • http://dh-cell.com/ckfinder/userfiles/files/bewigisizutivonevokab.pdfIn PDF document text
    • http://edumedcare.pl/upload/files/bovujofodokubad.pdfIn PDF document text
    • https://menlopark.com/wysiwygfiles/file/94038521782.pdfIn PDF document text
    • http://jcon-aps.dk/userfiles/file/ladipugunubekalekar.pdfIn PDF document text
    • https://www.bakirkoytemsilcisi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075cfe80789a---motaz.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://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_off0000fb3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB3A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001134c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1134C 16828 bytes
SHA-256: 167c5a252f9c207164deec6ca929f20f7712e2eb6be7366d3acab71bb0685c23
font_02_sfnt_off00013f15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F15 11032 bytes
SHA-256: dc88fb54f39ea4a8ca5aef20ec77b655e67db46a0b9ee17305a00e227f77059d

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