Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e96354d8b2ffafa…

MALICIOUS

PDF

52.4 KB Created: 2021-03-03 03:19:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: c9eceeeaa76d4bc6473f41979de35185 SHA-1: ec258a9244c2aec273b25d25f39cf0aef766eb11 SHA-256: 2e96354d8b2ffafa6e61f50f30555af881ba674d0887067cb4e2cf0801ba71dd
184 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many hosted on disposable domains, indicating a link farm designed to redirect users to potentially malicious content. The ML classifier and ClamAV heuristic firings strongly suggest malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of techniques used to redirect users to attacker-controlled infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9670

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://midufefew.ru/strik?utm_term=the+poky+little+puppy+big+golden+book PDF link annotation
    • https://firudofomupavu.weebly.com/uploads/1/3/1/3/131384713/b95b4024be29a.pdfIn PDF document text
    • https://mewofotas.weebly.com/uploads/1/3/4/5/134524455/2282380.pdfIn PDF document text
    • https://sefewazugep.weebly.com/uploads/1/3/5/2/135293251/lalikolidirobime.pdfIn PDF document text
    • http://dufifudusimube.mygamesonline.org/fiwaf.pdfIn PDF document text
    • https://mokoluwi.weebly.com/uploads/1/3/4/5/134595511/2bc5a3033.pdfIn PDF document text
    • https://degusatujetuz.weebly.com/uploads/1/3/0/8/130813325/3395847.pdfIn PDF document text
    • http://xawegap.mywebcommunity.org/48274241325.pdfIn PDF document text
    • http://pixunune.sportsontheweb.net/23736147200.pdfIn PDF document text
    • https://pimapavidi.weebly.com/uploads/1/3/2/7/132740410/mepame.pdfIn PDF document text
    • http://zumewidife.mygamesonline.org/glenfield_model_60_feed_throat_kit.pdfIn PDF document text
    • http://bivitajuteje.mypressonline.com/42451930621.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rofiviriw.rf.gd/32096480654.pdfIn PDF document text
    • http://mapesag.epizy.com/90330227686.pdfIn PDF document text
    • http://fujesotes.epizy.com/building_maintenance_free.pdfIn PDF document text
    • http://bifovigavij.myartsonline.com/59663043614.pdfIn PDF document text
    • http://sasaxunofob.atwebpages.com/present_perfect_continuous_exercises_perfect_english_grammar.pdfIn PDF document text
    • http://lawaxisagiwog.atwebpages.com/jegagitiruguzel.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c4c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4C9 4992 bytes
SHA-256: 200db02f9703cc57509ccdbc3513ad798591694024a595a5c81c7900e8ab5a6f

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