Malicious PDF — malware analysis report

Static analysis result for SHA-256 c01c2fc0fbb89ab5…

MALICIOUS

PDF

73.2 KB Created: 2020-12-25 05:18:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 09ba18ba57c6287e6170ed7e0c6176fa SHA-1: 1279cb8317adb1c92740e2eeac09069dd65eaf18 SHA-256: c01c2fc0fbb89ab52f90f8eec831170a07ca4f392599bd4e3eb1a37aeaef84c6
254 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains multiple embedded links, with at least one pointing to known malicious redirector infrastructure. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' suggests the document may also attempt to trick users into executing commands. The presence of these elements indicates a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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://traffmen.ru/123?utm_term=top+virt+res In PDF document text
    • https://devaropig.weebly.com/uploads/1/3/4/6/134616199/nojesonatumogul.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503987/normal_5fd5f8ca791be.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448538/normal_5fb30487aafb3.pdfIn PDF document text
    • https://kidivine.weebly.com/uploads/1/3/4/5/134576756/2820086.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490735/normal_5fe54fd6dad37.pdfIn PDF document text
    • https://nejufolij.weebly.com/uploads/1/3/4/8/134883139/f56ca72e71.pdfIn PDF document text
    • https://zeziruxowajud.weebly.com/uploads/1/3/4/6/134698921/tubiwiturikilopez.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/vazisi/doxuwig.pdfIn PDF document text
    • https://s3.amazonaws.com/vavabi/radio_advertising_script_template.pdfIn PDF document text
    • https://s3.amazonaws.com/tudawufed/organizational_structure_and_innovation.pdfIn PDF document text
    • https://s3.amazonaws.com/jepinebawo/21201120457.pdfIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/cartoon_movies_free_websites.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d7b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7B5 4260 bytes
SHA-256: f4508c6cd065de748fa78f50ef67f79b7945c3099c9872408455843e2f5962eb
font_01_sfnt_off0000e641.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE641 10612 bytes
SHA-256: 306327f2f4c92f9b03a5545abeddb89370abe628a2cc95034be811d815818ce4
font_02_sfnt_off00010a61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A61 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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