Malicious PDF — malware analysis report

Static analysis result for SHA-256 9de2152e9b3e72e2…

MALICIOUS

PDF

82.4 KB Created: 2020-11-24 05:31:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 340c26a69c295c098f395442bc8d6ba7 SHA-1: 7a485047809e9fb6ec935d489cfc98ca79f9ca10 SHA-256: 9de2152e9b3e72e23c5a0b1b390b746f1bc03646b561d46bda0cf0695682ea48
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, with one prominent URL leading to a site related to 'my hero academia mind control', suggesting a lure for phishing or a scam. ClamAV and ML classifiers identified the file as malicious, specifically a phishing trojan. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate an attempt to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • 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.
  • 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://trafficel.ru/strik?utm_term=my+hero+academia+mind+control PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368493/normal_5fa7471d7fc08.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373749/normal_5f9869db659d1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394073/normal_5f97b3a06ae2d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420238/normal_5fad332ad4282.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367923/normal_5f8a4a954ef28.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374207/normal_5f9c4a2642708.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368485/normal_5f87fd686e8d1.pdfIn PDF document text
    • https://babinekisifuve.weebly.com/uploads/1/3/2/6/132696104/volenobopini.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408706/normal_5f9afc9a8c0e1.pdfIn PDF document text
    • https://mepafuxutare.weebly.com/uploads/1/3/4/6/134660934/1816054.pdfIn PDF document text
    • https://dimomivij.weebly.com/uploads/1/3/4/5/134504604/zugunuxafuzusozuxiz.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/d144caff-1b0d-4c48-b5d1-ca280d19f4ae/83554525013.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5688e5b-27eb-4b13-a8e1-ba7dbbfab1b8/cual_es_la_oracion_de_fe_de_los_cristianos.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD36 5424 bytes
SHA-256: 61641868d8dbe52d6bd35f88c0ae65d45ab40d870ebb9a7b05ae1fdb547dd3d3
font_01_sfnt_off0000f017.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF017 5108 bytes
SHA-256: 6496cec02fbe5de817e9984173e6da9bdb5bc03f261f329b884d2955da5c0674
font_02_sfnt_off00010156.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10156 10892 bytes
SHA-256: 928599f087bf3c7645c091e12af1c612cc5b34e8907eb69e9f929544c97cab32
font_03_sfnt_off0001269a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1269A 16316 bytes
SHA-256: 28472a57270255ab3eaf7bfef4e500001c1fa3093b76db943ae929b3d5873736

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