Malicious PDF — malware analysis report

Static analysis result for SHA-256 202985bae63a45ae…

MALICIOUS

PDF

88.5 KB Created: 2021-09-07 17:27:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 305a153a8e2709d20468042dfbb3745c SHA-1: ed0ad14a4cd5c6fd066335f439e25100db0b791c SHA-256: 202985bae63a45ae1179dc4f48b338d0e6cdb2d93552e7ca2bd9aaf6c0408ad1
156 Risk Score

Malware Insights

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

The PDF contains numerous links pointing to compromised websites, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution. The presence of multiple compromised CMS upload links further supports the malicious nature of the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/160b09641498c3---52771319954.pdf In PDF document text
    • http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/16099fdacb3c75---619035545.pdfIn PDF document text
    • https://detectagsafety.com/ckfinder/userfiles/files/dababanalakanutijumo.pdfIn PDF document text
    • http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c122c31a3e3---bosemepevivopoxuk.pdfIn PDF document text
    • http://veszpremlizards.hu/_user/file/fevuvot.pdfIn PDF document text
    • http://jatyn.cn/upfiles/202108/file/1629783358.pdfIn PDF document text
    • http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160bee90a90c6c---ziseliruvokagedakigodopo.pdfIn PDF document text
    • http://ldksolar-officialliquidation.com/userfiles/files/levaravukirenazib.pdfIn PDF document text
    • http://moodyhighclassof70reunion.com/clients/2/24/24f6aee67edc386a60746049a176a33b/File/51874649749.pdfIn PDF document text
    • https://bodwellassociates.com/wp-content/plugins/super-forms/uploads/php/files/f4c0d175191c66ac2deabfb91b71562f/95910678840.pdfIn PDF document text
    • http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/k1tuac0fak90jnebtclimlboe2/pesufaborari.pdfIn PDF document text
    • http://www.mezmat.ru/ckfinder/userfiles/files/luwineme.pdfIn PDF document text
    • http://doubler-son-capital.com/photos/files/wapefegogujeb.pdfIn PDF document text
    • https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f62d7db8fc6---bodedekinemixexokon.pdfIn PDF document text
    • https://gfow.om/wp-content/plugins/super-forms/uploads/php/files/28cctqkn2q76g80qcaddhs48qf/tolabasot.pdfIn PDF document text
    • http://khodahoanglang.com/admin/webroot/upload/image/files/mukenoponofivesuvufal.pdfIn PDF document text
    • http://serramentisiciliano.it/userfiles/files/48185201340.pdfIn PDF document text
    • http://falerisztika.hu/tmp/kasamakejupizesek.pdfIn PDF document text
    • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16072c4ed22135---40462762061.pdfIn PDF document text
    • http://3bbb.fr/ckeditor/upload/files/64244498204.pdfIn PDF document text
    • http://nkmate.com/FileData/ckfinder/files/20210728_0CA6CE9CC561500B.pdfIn PDF document text
    • http://trimblehighalumni.com/clients/84492/File/jolofasepitemevofuvefaduf.pdfIn PDF document text
    • http://cdwy028.com/uploadfile/file/20210629223022.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=naparima+girls%27+high+school+cookbook+pdf+free+downloadPDF 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_off0000ed5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED5E 19812 bytes
SHA-256: 3dd6f8be3b3631cb2bd442642340abb802468c26a16e089b62014e2458f8d274
font_01_sfnt_off00012196.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12196 11300 bytes
SHA-256: 781f3b26ccd35af95d39d41a078c47b99f64b2384eed929c016fd9451fbe9056
font_02_sfnt_off00013b9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13B9E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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