Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6279ed28a30afb2…

MALICIOUS

PDF

83.2 KB Created: 2021-03-25 15:36:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5911061bbc33a33555fcd4fb82794d8a SHA-1: 6184d105bdc071c6ce98f51c5f88c6ee7b79297f SHA-256: d6279ed28a30afb2ad8879204150b9507cde6c0687e8c2df9fc28d74cd41b500
154 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical detection for a PDF link farm and a ClamAV signature. The file contains a large number of external PDF links, many of which are likely part of an SEO manipulation scheme or a content distribution network for malicious files. While no scripts were explicitly extracted, the PDF structure and the nature of the link farm suggest it could be used to deliver further malicious content or redirect users to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7908

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://druttle.ru/award?keyword=mathematical+modelling+problems+pdf
    • https://cdn-cms.f-static.net/uploads/4465142/normal_604228eec24b3.pdf
    • https://xomitemekebok.weebly.com/uploads/1/3/4/8/134881854/fogevamegilo.pdf
    • https://static.s123-cdn-static.com/uploads/4489609/normal_5fca7ca093431.pdf
    • http://noncomform.space/60212071422q3253.pdf
    • https://cdn-cms.f-static.net/uploads/4407994/normal_60539a5870556.pdf
    • https://static.s123-cdn-static.com/uploads/4379237/normal_5fcca2add8f34.pdf
    • https://cdn-cms.f-static.net/uploads/4470409/normal_605b3787644d5.pdf
    • https://static.s123-cdn-static.com/uploads/4408323/normal_6000451e94766.pdf
    • http://sweetmeet.online/press_your_luck_host_elizabeth_banks2iqur.pdf
    • http://wordsidepost.top/oster_bread_machine_recipes_5838xhfol.pdf
    • https://xumagatovonag.weebly.com/uploads/1/3/5/3/135312495/55572.pdf
    • https://cdn-cms.f-static.net/uploads/4459025/normal_604ec15a455af.pdf
    • https://cdn-cms.f-static.net/uploads/4405443/normal_5fd98e9be6c06.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/mejigavukolu/zimisexigobo.pdf
    • https://s3.amazonaws.com/jedaxopopuko/85826404950.pdf
    • https://s3.amazonaws.com/nijudow/7081372937.pdf
    • https://s3.amazonaws.com/gumegulaxi/zunewaxoxo.pdf
    • https://s3.amazonaws.com/xisakazelelinim/operations_research_jobs_in_bangalore.pdf
    • https://s3.amazonaws.com/vunizi/gowew.pdf
    • https://s3.amazonaws.com/bezorito/55029854293.pdf
    • https://s3.amazonaws.com/dikobepibelun/porter_cable_dovetail_jig_4216_video.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000124f2.bin
69b6fa65c0f2dfa46f51e2a5c2b548ad5ae107cf651f541e8e8bfaeb9c6b6ce7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x124F2 5716 bytes

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