Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0e5dcd663ff00dc…

MALICIOUS

PDF

96.0 KB Created: 2021-06-13 18:49:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 8a21c05deac4f25206e7eaac750a7f23 SHA-1: f229667703dd6002d3cbbfab4069c76c568d6c42 SHA-256: d0e5dcd663ff00dc2dbd606f61a666a98f50dbbc2c5b0b247e51f79cddf546d6
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a ML classifier and ClamAV, indicating a phishing or trojan threat. The document contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting it functions as a link farm to distribute further malicious content. The presence of embedded URLs and the nature of the heuristics strongly indicate an attempt to redirect users to malicious sites, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://crewmak.ru/uplcv?utm_term=kiss+the+rain+sungha+jung+tab PDF link annotation
    • http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/16074916eb4352---zavufe.pdfIn PDF document text
    • https://graffitipaintstudio.com/wp-content/plugins/super-forms/uploads/php/files/75f46f6fb3d8cdf2291b0c6f25f3e7aa/taserozejuvuzixini.pdfIn PDF document text
    • http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a1db9d7eb36---fapenudof.pdfIn PDF document text
    • http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607c3501afece---36948619876.pdfIn PDF document text
    • https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/ab9d46a00a876a66f879ad9f4e8c6310/dujifipeluduwusobuf.pdfIn PDF document text
    • https://rhagro.com.mx/wp-content/plugins/super-forms/uploads/php/files/e4cd6b40bf5ec31668c57ca5d7b2ecb4/mitexatinovoru.pdfIn PDF document text
    • https://akarchlight.com/wp-content/plugins/super-forms/uploads/php/files/fb88751280fcd030ff53c9b3fed01bf3/tuwasobifosugunozemipenaf.pdfIn PDF document text
    • http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/160746c1ede6d7---78904304341.pdfIn PDF document text
    • http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b25f1bc5bd8---78019487256.pdfIn PDF document text
    • http://whs1963.com/clients/7/75/758a827d59fb1c2827eec60421ffdc22/File/nesegolenozur.pdfIn PDF document text
    • http://koszyczarek.pl/userfiles/file/besiba.pdfIn PDF document text
    • https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/1606c814eab8b1---fejesadiredimatevad.pdfIn PDF document text
    • http://davidhammerstein.org/userfiles/file/fufeg.pdfIn PDF document text
    • https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608231bb7464f---nezexisapu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn 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://scripts.sil.org/OFLIn PDF document text
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.orgIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000da4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA4B 5076 bytes
SHA-256: 9234f703aa505f37fe21a677d4502fc2f996dc86ae7f691838ed757c3090fbdb
font_01_sfnt_off0000ec38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC38 5100 bytes
SHA-256: b07d406830aab331b46686efce04c460b0ce9cfa77e96ec3373651d6fc959e85
font_02_sfnt_off0000fd8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD8A 6428 bytes
SHA-256: 95ca3744e0ee2dd9c86f40bed2c300e21a43081be65b02021b166e60c5a7889a
font_03_sfnt_off00010e95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E95 23516 bytes
SHA-256: 544e22618df9f35e0712d228f897f26ecaa64f66445ad3fdf675666e6cc207e1
font_04_sfnt_off000142c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x142C4 18708 bytes
SHA-256: 8f8db0922509606c93a1666677c85851baa39a3766bf364b03849af73de9a4f4
font_05_sfnt_off0001609b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1609B 4700 bytes
SHA-256: 4bcc023d2494f3d27816f776d1802d58ac6ab353a79c4c9da85316071e9a6c0e

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