Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f65e30524b7c26a…

MALICIOUS

PDF

79.6 KB Created: 2021-03-01 23:08:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 5645d612b15f2956938a61697f8b9c4c SHA-1: 8260ec57f1d60de9dd95d16681455dabdf9f3812 SHA-256: 5f65e30524b7c26a22ba03f095f0859c910236304ebe43ef100e1de42972571b
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. It contains a large number of external links, suggesting a link farm or phishing attempt. The embedded URLs point to various domains, including jottigo.ru and multiple weebly.com subdomains, which are likely used to host malicious content or redirect users to phishing sites. No scripts were extracted, but the PDF structure and link farm indicate a malicious intent to redirect users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jottigo.ru/strik?utm_term=republic+of+doyle+season+3+episode+3+cast PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4381531/normal_5fcaffe827970.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454556/normal_6018a3fbe0041.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380691/normal_5ff57ce527b87.pdfIn PDF document text
    • https://fukenavu.weebly.com/uploads/1/3/0/8/130813663/e455b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482189/normal_5fdff06d8cebf.pdfIn PDF document text
    • https://selemuja.weebly.com/uploads/1/3/4/8/134893326/varovuguz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376382/normal_5fd916cb060ef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489722/normal_5fd8d2495724d.pdfIn PDF document text
    • https://xotizirew.weebly.com/uploads/1/3/1/8/131855992/d14df3d835e0197.pdfIn PDF document text
    • https://digeforoxega.weebly.com/uploads/1/3/4/6/134668277/jezigufonida-gowadepejesid-remokelodu-pixivure.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389358/normal_5fcc8ee5b2db0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384316/normal_5fd863671849f.pdfIn PDF document text
    • https://zapojejomelaxi.weebly.com/uploads/1/3/0/7/130775516/zaxerufedixod.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
    • 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_off0000ec72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC72 5348 bytes
SHA-256: eec14a608edbe51582d44debafb92c008c949e32fc24c7d01f8cc87a2c8c4307
font_01_sfnt_off0000feb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEB6 10636 bytes
SHA-256: 6b94909ca99325a54a98e9b8294285e1393492da949d728bf76c227e120792e5
font_02_sfnt_off00012307.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12307 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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