Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c49c8ae5f76f89f…

MALICIOUS

PDF

59.1 KB Created: 2020-11-19 06:14:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1d2c61765e2b29b486e7f5e7d3caadd9 SHA-1: 33391e47a5deaa656f7f68bd131f67064ee2864f SHA-256: 8c49c8ae5f76f89f82d5644320317a64ce8c2be79d3df82f9d806e817a957002
154 Risk Score

Malware Insights

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

The PDF file contains numerous external links, with a critical heuristic identifying it as a link farm. One prominent external URI points to 'traffset.ru', suggesting a redirection to malicious content. The ClamAV detection and ML classifier further indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8123

Heuristics 4

  • 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
  • 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/aws?utm_term=psychology+exam+questions+and+answers
    • https://cdn-cms.f-static.net/uploads/4381976/normal_5f8d3c8baf83c.pdf
    • https://bixanizutojez.weebly.com/uploads/1/3/4/4/134490846/japijon.pdf
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/pejajofedaxevaw_kozadesupuke.pdf
    • https://cdn-cms.f-static.net/uploads/4461249/normal_5fb386fb5f769.pdf
    • https://desaviguwogo.weebly.com/uploads/1/3/1/8/131871994/3414469.pdf
    • https://gogebuzavoriro.weebly.com/uploads/1/3/2/6/132681212/lajukile.pdf
    • https://zuxubemusaf.weebly.com/uploads/1/3/1/4/131453996/tibinu-rolipujul.pdf
    • https://panidulupeju.weebly.com/uploads/1/3/0/9/130969186/jadurekofetuvedu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/leteraxewe/76224054166.pdf
    • https://s3.amazonaws.com/zedilegol/carnivores_dinosaur_hunter_pro_bundle_apk.pdf
    • https://uploads.strikinglycdn.com/files/e395b753-a969-485f-aebc-aa344efdc299/suprasistema_sistema_y_subsistema.pdf
    • https://s3.amazonaws.com/vesubodufisi/ruzajorak.pdf
    • https://s3.amazonaws.com/nafibanefexex/1965956546.pdf
    • https://s3.amazonaws.com/setaxilitozuko/30344896968.pdf
    • https://uploads.strikinglycdn.com/files/6848d8d0-bf1f-4e8e-8f03-462471552d48/how_high_are_hurdles_in_the_olympics.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d504.bin
59dbcf73fb023e722018aa40236b17506dd7a1911c44af54644b24cdaf7b0935		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD504 5624 bytes

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