Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f269d4dc4591f6b…

MALICIOUS

PDF

83.8 KB Created: 2021-08-21 13:53:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-27
MD5: a196d350b0b7d91298e213dd3c012067 SHA-1: 64d846ec88408d43e1b43ca70fc5aa028f35523f SHA-256: 9f269d4dc4591f6b8f7b72c986959bb1e4cd2444c4422935a69bb99da87cdfdc
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged by ClamAV as a phishing trojan. It contains numerous links to compromised websites, suggesting a phishing or malware distribution campaign. The presence of a 'download button' heuristic further supports the intent to trick users into downloading malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 7

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a27d900e764---miwabaxenifefikom.pdf In PDF document text
    • http://www.kmclogistics.com/wp-content/plugins/super-forms/uploads/php/files/585d1199608b01e429374ca1832637b0/59319129409.pdfIn PDF document text
    • http://cambridgekapurthala.com/damana/userfiles/file/76876929531.pdfIn PDF document text
    • https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/612091beda49ba18b229cb0c7925a6cc/42431856344.pdfIn PDF document text
    • https://textosolutionslinguistiques.ca/upload/editor/file/92089511942.pdfIn PDF document text
    • https://polskieplytki.com/wp-content/plugins/super-forms/uploads/php/files/917f7d4801902a43650396ee7fab6bab/1677486210.pdfIn PDF document text
    • http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160902676a1a34---josogun.pdfIn PDF document text
    • https://sip7.pl/autoinstalator/sip7.online/wp-content/plugins/super-forms/uploads/php/files/2b6a27688c12bad913b49033d870256a/wuvezuximabenan.pdfIn PDF document text
    • https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8574dcbfce---99901559075.pdfIn PDF document text
    • http://suvagcentr.ru/userfiles/files/nojixuxovog.pdfIn PDF document text
    • https://rdsdealers.com/ckfinder/userfiles/files/depolara.pdfIn PDF document text
    • http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfadbe951fb---lafuvu.pdfIn PDF document text
    • http://soldresold.com/Shradhdha-Mehra/soldresold/final/ckeditorimage/files/fenasijavunugirikerazaku.pdfIn PDF document text
    • http://kaies.cn/upfiles/21073003124652217117uoo0.pdfIn PDF document text
    • http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a656a5ce7fd---zobizugovoximexo.pdfIn PDF document text
    • http://ettorebelfioreliutaio.it/userfiles/files/logifupolavovudiguluwuxu.pdfIn PDF document text
    • http://blesk-stroy.ru/userfiles/files/45786555515.pdfIn PDF document text
    • http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077aa4e8fb7c---nawer.pdfIn PDF document text
    • http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1607be5703f494---patadarisedo.pdfIn PDF document text
    • http://nctpa.biz/clients/5/51/51e593b678cc4707ea5ff7b662bcbdb9/File/74406734719.pdfIn PDF document text
    • http://9262895.ru/ckfinder/userfiles/files/64219728025.pdfIn PDF document text
    • https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d4782da5dc3---jewilajobutovij.pdfIn PDF document text
    • http://1544-7419.net/upload/fckeditor/file/sezaxejupanibawi.pdfIn PDF document text
    • http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160fa5bfc52d1a---gasedogogo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=chaar+sahibzaade+2+full+movie+download+in+punjabi+filmywap+2016PDF 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_off0000de0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE0E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f625.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF625 11852 bytes
SHA-256: 1827a23ea31211614095f86181fbb1d35f49f1934980d01bef193a6c7388906d
font_02_sfnt_off00011240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11240 17596 bytes
SHA-256: 2fad87b1b2914a0a1d95ae43391363fd3a1680361c0059ef28623c22a1107d51