Malicious PDF — malware analysis report

Static analysis result for SHA-256 080bf1389ed135e1…

MALICIOUS

PDF

76.9 KB Created: 2020-12-31 06:59:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: e49ce9bb6cf01f8f3ed12d84bc390fac SHA-1: 73180593758cca3f986694843742a9ab091c8792 SHA-256: 080bf1389ed135e115236e5f336836b77f259975c75b7e5c6af396967fafdd0c
214 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, identified as a link farm, directing users to potentially malicious websites. One critical heuristic indicates a link to known malicious redirector infrastructure. The ClamAV detection and ML classifier further support its malicious nature, suggesting it's a phishing or trojan distribution attempt.

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 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.
  • 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://cctraff.ru/123?utm_term=magic+kingdom+parade+history In PDF document text
    • https://gadevonetikob.weebly.com/uploads/1/3/4/3/134358307/3518281.pdfIn PDF document text
    • https://kiburosipaso.weebly.com/uploads/1/3/4/6/134601321/1759476.pdfIn PDF document text
    • https://cdn.sqhk.co/kepebeso/ghgjgvw/gilapew.pdfIn PDF document text
    • https://purelukanixavaj.weebly.com/uploads/1/3/1/4/131454065/letigabofofifupo.pdfIn PDF document text
    • https://cdn.sqhk.co/vefutifeves/h0ihVSz/heart_free_svg.pdfIn PDF document text
    • https://cdn.sqhk.co/pidefatop/jdEhblQ/duxodibejuvedefipisinejiw.pdfIn PDF document text
    • https://panesiwosejel.weebly.com/uploads/1/3/0/7/130739396/divaxezodo-xinuxojir.pdfIn PDF document text
    • https://cdn.sqhk.co/gefewivurov/4ifjbIA/texas_outdoor_annual_2021.pdfIn PDF document text
    • https://cdn.sqhk.co/firimubujosu/T1PFjjP/35197342025.pdfIn PDF document text
    • https://cdn.sqhk.co/zotipimesaza/igiaicK/jefopavexesoto.pdfIn PDF document text
    • https://kuliwulakut.weebly.com/uploads/1/3/4/5/134523122/b6aceea82b8a0.pdfIn PDF document text
    • https://cdn.sqhk.co/pegidago/TYjiA8l/18745109841.pdfIn PDF document text
    • https://cdn.sqhk.co/sononipo/idhdOja/steam_consumption_calculator_online.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/30eec6fa-b039-40d7-a63f-5ce6930077a6/increase_tether_distance_ark_ps4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1cd18273-b886-4ea6-ba41-5cdaebf39c94/8930036167.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_off0000edf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDF5 5624 bytes
SHA-256: 58e355ad3bea51526db5af2f891eb03e7a40fda934baded93920a8267c0c48a6
font_01_sfnt_off0001010b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1010B 11532 bytes
SHA-256: f31dc5241a34d825a11cb4fea3bd8a698ac384e78b45cfde44c7c6309cabb8df

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