Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a0e82221503b4b2…

MALICIOUS

PDF

72.8 KB Created: 2020-11-20 00:44:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: b93da7eadb32cb7dd26b822f99494bbb SHA-1: d19d94779e31a0ecc1105087a7e206c2b237ec14 SHA-256: 9a0e82221503b4b283ab9e2332a7eb37db9d807923a8f397039bd2dd89078afa
204 Risk Score

Malware Insights

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

The PDF file contains numerous external links, suggesting a link farm or redirection mechanism. It also includes heuristics indicating a password-protected archive lure and a fake download button, common tactics for phishing or malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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 https://traffset.ru/strik?utm_term=hamari+adhuri+kahani+full+movie+download+hd+720p+filmyzilla PDF link annotation
    • https://tuwebiparixe.weebly.com/uploads/1/3/4/6/134674666/6014089.pdfIn PDF document text
    • https://latudawa.weebly.com/uploads/1/3/4/3/134308630/d29423f296e21c.pdfIn PDF document text
    • https://daxefumusadaja.weebly.com/uploads/1/3/4/7/134763928/910117.pdfIn PDF document text
    • https://rakikamizop.weebly.com/uploads/1/3/1/4/131437254/f55b1df52.pdfIn PDF document text
    • https://boseveju.weebly.com/uploads/1/3/4/5/134595203/pegetune-gesuvovaxop-kifipum.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f215fda2-f8ba-45dd-9766-bcc6015a51e5/joladitumivavajaja.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d48fff9-899e-4735-9f75-907568d39db7/70015447109.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8bc1dbb-af68-4a4f-9504-ecf0126ff4de/88481074323.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4ed8f03-d11c-455c-bf7b-8938df7a984c/femilim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb4b4c5a-a35a-4607-9ac4-4118eda3638f/76022075293.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52d4c3d1-8244-44f4-adb9-724c32c15c79/muvukiru.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f34bd0c-fabb-4c6d-a7e5-4a372255d9bb/tipexobikuwajejex.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/acronis_true_image_2019_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/najubu/the_enormous_turnip_book.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC9E 5788 bytes
SHA-256: 55ed0a16826c16d882e0d19591cfe25b261eeea6f57aec858e122d7cd5890e8a
font_01_sfnt_off0000f054.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF054 10992 bytes
SHA-256: 9ca1caa427c4376dd07fd79ef8405f09a56c9776a44b7a272e41591c6f1aaf48

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