Malicious PDF — malware analysis report

Static analysis result for SHA-256 57466bacc343232a…

MALICIOUS

PDF

71.6 KB Created: 2021-06-12 21:57:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 89f559c30d35484b2c3df112ca054e22 SHA-1: 9fbec53bdbeb9741f6b092e15824d573736db6d0 SHA-256: 57466bacc343232aa35b08f9cf7697299faf9d62e3bc88aad4ca854da044b75d
156 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by multiple engines, including ClamAV and an ML classifier. It contains a large number of external links, many pointing to Weebly-hosted PDFs, suggesting a link farm or SEO manipulation tactic. While no scripts were explicitly extracted, the PDF structure and the presence of numerous external links indicate a potential for malicious redirection or content delivery, aligning with phishing or malware distribution techniques.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://rugitaroginuwim.weebly.com/uploads/1/3/4/7/134768051/digozuwaj-sonujeviwinegiw.pdf
    • https://zuwuroxiver.weebly.com/uploads/1/3/1/0/131070979/linonavemiwer.pdf
    • https://kekebamifibem.weebly.com/uploads/1/3/1/6/131606854/e3b73e.pdf
    • https://pafufido.weebly.com/uploads/1/3/1/4/131407890/rolesilatemi.pdf
    • https://detaxotipag.weebly.com/uploads/1/3/4/7/134730838/juvimagivuju-fizubokeraku.pdf
    • https://kixesikanunezez.weebly.com/uploads/1/3/4/7/134702505/8eb51288f1da7db.pdf
    • https://zogoporev.weebly.com/uploads/1/3/1/3/131381602/silaxikom-visino-makilokeso-mowakiridadi.pdf
    • https://pijegedup.weebly.com/uploads/1/3/4/8/134870890/dekipilole.pdf
    • https://cdn-cms.f-static.net/uploads/4384028/normal_604c9f4a6d4b1.pdf
    • https://xoxaworik.weebly.com/uploads/1/3/4/0/134012931/didigolekuludib.pdf
    • https://jifurutirijiguj.weebly.com/uploads/1/3/4/5/134528482/d55dbfd.pdf
    • https://cdn-cms.f-static.net/uploads/4404733/normal_600e69bce881f.pdf
    • https://nobaloledajasom.weebly.com/uploads/1/3/2/6/132681012/vixedit.pdf
    • https://momapepax.weebly.com/uploads/1/3/4/5/134594639/5325323.pdf
    • https://vebokupamo.weebly.com/uploads/1/3/4/4/134494409/4a73010d3d.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://feedproxy.google.com/~r/wb/ENAH/~3/n4t4wXRn-MA/wb?keyword=what%20is%20canine%20dysfunctional%20behavior
    • http://vawijoj.pbworks.com/f/lomalidewavaxedufiroker.pdf
    • http://tavaretaz.pbworks.com/f/ritokazatodel.pdf
    • http://visetululiv.pbworks.com/w/file/fetch/144423102/fox_hills_stores.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc79.bin
87ad1e281bdfbc479d343f39f045a8ca621275892269fce7959eb9bea83e91e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDC79 5424 bytes
font_01_sfnt_off0000eefe.bin
3c0b55d02d7dcadd21fbcecf074b7420df150641c33d9ab65925be18c5c8a691		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEEFE 10076 bytes

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