Malicious PDF — malware analysis report

Static analysis result for SHA-256 e998d70200b21eed…

MALICIOUS

PDF

110.2 KB Created: 2021-06-26 03:01:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 63b49ea1c429124b113050d263602865 SHA-1: 2b08ab0f6c34f4ee114cf86718202f055a42ad8d SHA-256: e998d70200b21eed9bbc3ae11d1cfd824dc723eb9103ff7a9aa51bdaeb37c0bd
156 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution. No scripts were extracted, but the structure and URL patterns are consistent with a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9746

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://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160766cd1a6b6f---bivuserenoxuveto.pdf
    • https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084ad4a5a6f3---72991380852.pdf
    • https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/m3ci3rahb2cmij8pbm7cuiilpp/87036838283.pdf
    • https://autoandtruckrepair.net/nbloom/fckuploads/file/gupewovef.pdf
    • http://tai-yang.tw/taiyang/upload/file/41551813528.pdf
    • https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c4e823ce6fa---94138902043.pdf
    • http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16095e4a9c4833---raxunopapakexanat.pdf
    • https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/a5mg5tkmn8f9gio8epq8uhlb2d/begolifosenemafazer.pdf
    • https://lightspec.ca/wp-content/plugins/super-forms/uploads/php/files/ca8a6d36026cde0b14bd9c8ebcc283f0/dininugelijinesakiz.pdf
    • http://alrabbancapital.com/file/files/65478923523.pdf
    • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607d46e051372---94548370930.pdf
    • https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084f80443fa0---fagesimid.pdf
    • http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160820de8228b7---xenuvul.pdf
    • https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/3507148a2aadb3c03fb9f252097f6f8b/31244364858.pdf
    • https://bouveau-consulting.com/userfiles/file/fudawededorijidowaze.pdf
    • http://maility.pl_adresuserfiles/file/93069268336.pdf
    • https://floridainvestment.cz/files/file/xugubudeve.pdf
    • https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/mqeraarpkrl5ols2fqrajuv0n1/jowuv.pdf
    • http://billsky.ee/files/file/tonilibulidanubafa.pdf
    • https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607af8240a24b---xedamibodojowulaz.pdf
    • https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/ohlr682jtm2tgqvig7d00e23q7/78813456879.pdf
    • http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609c63d55c7c1---jaxavikedojug.pdf
    • http://thepnguyentran.com/media/ftp/file/xiludevinoruleret.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=i+have+never+been+to+me
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010871.bin
f1154ebd3de5b5f9b31074c066b14caf310bc6257d2518e439106701a1037cfb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10871 29472 bytes
font_01_sfnt_off0001441a.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1441A 16792 bytes
font_02_sfnt_off00015c27.bin
c01e7f081d2984dd6cd76cedd93ea4920f7b5839b12ab5dbad363aaf90531f38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15C27 9396 bytes
font_03_sfnt_off00017b7f.bin
581958d0bd509bfd328e9f0186fc6869f3fa10876d6a0297f4d7a27b41ba8dd6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17B7F 10224 bytes
font_04_sfnt_off0001923b.bin
75b8cea56669025c5bd99317a2d26421be21942fb3db046977d6ce9666fad5c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1923B 17004 bytes

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