Malicious PDF — malware analysis report

Static analysis result for SHA-256 72e2ff638f0f302d…

MALICIOUS

PDF

93.5 KB Created: 2021-01-22 00:16:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: f5908d7f6e3ed620c2fba04d990ac4c6 SHA-1: 1d4c7a94c9632dfa89506ca6ac5fa7f577134c47 SHA-256: 72e2ff638f0f302dfdc44f5c7f64d6259c4e631665365c55c8b3fa92ed3188a6
156 Risk Score

Malware Insights

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

The PDF document contains numerous external links, a common tactic for phishing or distributing further malware. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of links, suggesting an attempt to manipulate search engine results or redirect users to malicious sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

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://traffset.ru/wb?keyword=secret%20society%20hidden%20mystery%20game%20updates PDF link annotation
    • https://pojekemo.weebly.com/uploads/1/3/4/4/134469054/4490934.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417222/normal_5fe957732cd5d.pdfIn PDF document text
    • https://wifevotus.weebly.com/uploads/1/3/4/8/134897576/4e2c673dc36e233.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391335/normal_60073da42b823.pdfIn PDF document text
    • https://penuwepilaxol.weebly.com/uploads/1/3/4/7/134756509/4854561.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453732/normal_5fcc2bbc21e2d.pdfIn PDF document text
    • https://lolejubabam.weebly.com/uploads/1/3/1/3/131379737/2c4b2ed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460232/normal_5fea43798ca8c.pdfIn PDF document text
    • https://nefarixuk.weebly.com/uploads/1/3/1/4/131407944/4d831fd1a1376.pdfIn PDF document text
    • https://niforobufuxir.weebly.com/uploads/1/3/4/5/134512868/xiduteres-suzivurumudola.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464314/normal_5ff46196755db.pdfIn PDF document text
    • https://xukotonaxi.weebly.com/uploads/1/3/1/4/131453431/kalodabutu-fulade-fusasen-liwep.pdfIn PDF document text
    • https://bivovupoxewoko.weebly.com/uploads/1/3/1/3/131380626/2635488.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391642/normal_60079b0ce4c36.pdfIn PDF document text
    • https://revijokatise.weebly.com/uploads/1/3/3/9/133999222/3672580.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4530457/normal_60081cf92ff1a.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://luremugaxufarup.epizy.com/tujalidogekomu.pdfIn PDF document text
    • http://wumevagijez.epizy.com/takesoxudoropegigoxaza.pdfIn PDF document text
    • http://pamapubosozule.epizy.com/80262789445.pdfIn PDF document text
    • http://gujupikisikali.epizy.com/wodiwam.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_off000121d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121D2 5540 bytes
SHA-256: 3eba55b80b17be3149ce65fbc049a4cbc7a7cce9290011c29d06137d27d047c8
font_01_sfnt_off00013475.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13475 10980 bytes
SHA-256: b62e9b1bf8bfc54880c6cf76d6f617014d3e67af1198185ad3a8aafb007b841f
font_02_sfnt_off000159e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x159E2 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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