Malicious PDF — malware analysis report

Static analysis result for SHA-256 48bf4ec063d749ee…

MALICIOUS

PDF

61.2 KB Created: 2021-05-22 22:56:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 7198f68736b4b022298f612ae9bd51f3 SHA-1: 3d4ffe2a32ffb172097e2cfdfab3016f4893fd60 SHA-256: 48bf4ec063d749ee328336ff6980374b328325c1ecae007d498b740a97fb6ef3
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6079

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.
  • 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://jumiwimov.ru/strik?utm_term=webelos+uniform+patch+placement+2019 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4465537/normal_5fc5b9543d7f5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412607/normal_604729ddad997.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381534/normal_602f29fe54e73.pdfIn PDF document text
    • https://zawurufaxi.weebly.com/uploads/1/3/4/8/134861846/beniv-ralusisolix.pdfIn PDF document text
    • https://ziwolowuwuxux.weebly.com/uploads/1/3/5/3/135321756/26f89812bff1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461497/normal_605ef65cde7f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371023/normal_6046316b737fd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501659/normal_6022cc2ca8248.pdfIn PDF document text
    • https://zudejuzire.weebly.com/uploads/1/3/2/6/132681250/3165852.pdfIn PDF document text
    • https://gukikaxut.weebly.com/uploads/1/3/0/7/130775725/siwojamiwe-laxagusakasalo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368732/normal_6061daad88781.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456989/normal_6059cf4e9ca74.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459029/normal_5fee413ade705.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366022/normal_6023ed6b9ec7c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451954/normal_605cbabc10407.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76c95910-5b30-4fe9-b02d-610cb3997fdf/sofefidulaf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/121b9482-cbbc-469d-93b6-efd6573f69e3/banubalaxulimomevubilawid.pdfIn PDF document text
    • https://s3.amazonaws.com/vibuvomomuv/21823215121.pdfIn PDF document text
    • https://s3.amazonaws.com/fusidejebi/sha1_hash_file_format.pdfIn PDF document text
    • https://s3.amazonaws.com/ragejufa/vupebenakore.pdfIn PDF document text
    • https://s3.amazonaws.com/vawoginele/daredevil_netflix_imdb_parents_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68fba028-50b5-4bbd-85ad-dd353a98f0f5/canon_powershot_sx720_hs_user_manual.pdfIn PDF document text