Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d095d00963290c9…

MALICIOUS

PDF

86.1 KB Created: 2021-09-16 09:27:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: e5f413c6ca9b8332f4cbcb36b3f08bee SHA-1: deac8a2c8d238cff01d8fcf8b3d32253f152fb03 SHA-256: 4d095d00963290c9ad096743ed5217595b266c42b05fa2f94377d5bf1961d292
176 Risk Score

Malware Insights

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

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and ML classifiers, indicating malicious intent. It contains numerous embedded URIs that point to various domains, many of which appear to be compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' suggests the document is designed as a link farm, likely to redirect users to phishing sites or download further malware. No scripts were extracted, but the presence of multiple external links and the overall structure strongly suggest a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://irlanc.ru/uplcv?utm_term=mi+10t+vs+poco+x3+nfc PDF link annotation
    • http://evergladesharvesting.com/ckfinder/userfiles/files/43014444452.pdfIn PDF document text
    • http://vip-cond.ru/userfiles/file/kovuvij.pdfIn PDF document text
    • http://musik-fachberatung-neumarkt.de/images/uploadedimages/file/puwap.pdfIn PDF document text
    • http://aatmicscience.org/asuserfiles/file/18253728388.pdfIn PDF document text
    • http://www.chatanakonci.cz/userfiles/file/1515648243.pdfIn PDF document text
    • http://dohertylaw.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/29761228452.pdfIn PDF document text
    • http://stainless-faucet.com/uploads/htmlupload/files/96420276640.pdfIn PDF document text
    • http://vers-ma.de/userfiles/file/goseresoxejipomez.pdfIn PDF document text
    • http://cuacongtudongbinhduong.com/upload/files/gewemabetorezor.pdfIn PDF document text
    • http://amandamaitland.com/images/file/2066740717.pdfIn PDF document text
    • http://zentrumok.com/userfile/files/dolew.pdfIn PDF document text
    • https://carpenterstouchnj.supremeroi.com/FCKeditor/file/54264074475.pdfIn PDF document text
    • https://dintek.eu/uploads/file/sudinukodufemawuvif.pdfIn PDF document text
    • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16138575e45288---kobobefoxofo.pdfIn PDF document text
    • http://optimaglobal.net/ckupload/files/pevezepotapekonekafudok.pdfIn PDF document text
    • https://toocapen.com/files/sonixajuwufozaniv.pdfIn PDF document text
    • http://wskinbody.com/data/boardData/files/gifojuderezajowekenajubok.pdfIn PDF document text
    • http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/1613e2b84f3106---keninetumisejivuteseb.pdfIn PDF document text
    • http://reklama-kemerovo.ru/files/files/vuzotefazuwag.pdfIn PDF document text
    • http://185.33.116.145/~acus01/upload/files/87774952119.pdfPDF link annotation
    • https://dd-inside.de/userfile/file/54599599409.pdfIn PDF document text
    • https://hirurgija.me/files/xurebebim.pdfIn PDF document text
    • https://efficientinfocomm.com/ckfinder/userfiles/files/1227936238.pdfIn PDF document text
    • http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/161359d36b1490---29644557133.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_off0000e9d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9D5 18584 bytes
SHA-256: 79f8862cda8be67d799fa2bd7aad4e9032fc3047c66bdc638fac449692f1cc18
font_01_sfnt_off00011a87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A87 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001329e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1329E 10540 bytes
SHA-256: b427db53ed171fa5c68939395aaa66f624ec46e012a5c461fbd02348171a9493

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