Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a63bbad0fbeefce…

MALICIOUS

PDF

76.4 KB Created: 2021-05-20 02:31:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: db991ae9b9cf0993273a619e940283bb SHA-1: afc0258e31b2f2dcf8b4008ec3e208d179cd56e9 SHA-256: 0a63bbad0fbeefce2ce6456264bfd809b2f8aaa19176572e0cfe7623c821a64b
184 Risk Score

Malware Insights

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

The PDF contains embedded links, with one specifically identified as a malicious redirector pointing to 'https://dafemum.ru/strik?utm_term=where+can+i+buy+a+real+magic+wand'. This URL is likely used to direct the user to a phishing page or to download a secondary payload. The document body, though heavily obfuscated, contains text related to the search query 'where can i buy a real magic wand', suggesting a lure to entice clicks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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 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.
  • 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://dafemum.ru/strik?utm_term=where+can+i+buy+a+real+magic+wand In PDF document text
    • https://wisejagu.weebly.com/uploads/1/3/4/8/134881465/dasazi.pdfIn PDF document text
    • https://wotapidedodibi.weebly.com/uploads/1/3/4/4/134475573/2dc4db380b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470685/normal_5ffc4d777fdc2.pdfIn PDF document text
    • https://xezefamije.weebly.com/uploads/1/3/4/3/134352880/3459944.pdfIn PDF document text
    • https://natumelazorog.weebly.com/uploads/1/3/4/7/134711419/3638619.pdfIn PDF document text
    • https://gogabaxada.weebly.com/uploads/1/3/4/8/134852864/joresonutelu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366042/normal_6022caa187d98.pdfIn PDF document text
    • https://sozakipebi.weebly.com/uploads/1/3/0/8/130814717/8500072.pdfIn PDF document text
    • https://xopozutafedas.weebly.com/uploads/1/3/1/4/131453480/80dd01b1d.pdfIn PDF document text
    • https://romizipomubem.weebly.com/uploads/1/3/0/7/130775952/jodelobadexejad-xonegafux-jujavejaj.pdfIn PDF document text
    • https://vasigigu.weebly.com/uploads/1/3/4/6/134607878/4402470.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/db5b7a31-b62d-44c0-9cb2-83103a21f0ae/56134282259.pdfIn PDF document text
    • https://s3.amazonaws.com/mexesazaxasa/frankfurt_v_chelsea_match_report.pdfIn PDF document text
    • https://s3.amazonaws.com/xeropizuwe/56152519032.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/861aa579-ad10-42a9-84f6-07a19bdeb1e6/vagafekamitagepipi.pdfIn PDF document text
    • https://s3.amazonaws.com/wupixufekijax/28166442398.pdfIn PDF document text
    • https://s3.amazonaws.com/vavejijitatofu/fine_granular_cast_reporting.pdfIn PDF document text
    • https://s3.amazonaws.com/didowugorokirug/fibadazelamibojufifijixeg.pdfIn PDF document text
    • https://s3.amazonaws.com/bededuxotulapil/18521649706.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_off0000ed7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED7D 5520 bytes
SHA-256: 127e86a93b3c18fd0caa32f08223b0366df1ca041787e447ee2f540cd45b9707
font_01_sfnt_off00010038.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10038 10512 bytes
SHA-256: 261c55ddebcf3964c54853b3748f3f92ac4a25558ecc465f3b6e6c03675e8110