Malicious PDF — malware analysis report

Static analysis result for SHA-256 abf360b0521ca01e…

MALICIOUS

PDF

37.0 KB Authoring application: Scribus
MD5: 8721a8bca27c56664317be13098c8ffb SHA-1: f92e6072c4d5d079ee9661ba0df0bac10767340c SHA-256: abf360b0521ca01e09d83262dfeb87613143cc07b22ae9b482d582168bd15f2e
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links to external PDF files hosted on various domains. This technique, identified by the PDF_SEO_LINK_FARM heuristic, is commonly used to distribute malicious content or conduct phishing attacks. The ClamAV detection further supports its malicious nature. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

Heuristics 3

  • 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.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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 http://hostmaster.avphospitals.com/uploads/1/3/0/6/130605222/685555.pdf
    • http://waiapukidshomebased.com/uploads/1/3/0/2/130288562/f4efbd0e1980.pdf
    • http://thequiltedseahorse.com/uploads/1/3/0/3/130323322/b242fa9e7adad.pdf
    • http://letuscall.net/uploads/1/3/0/5/130540182/abe5dcadf2dfb25.pdf
    • http://humblehandstulsa.com/uploads/1/3/0/2/130291499/sikatakovofuje-vazivadowopejot-womedowalawedoj.pdf
    • http://bryancumming.com/uploads/1/3/0/5/130589353/adfcb.pdf
    • http://www.ecommerce102.org/uploads/1/3/0/5/130539204/7696a483cb7cd1b.pdf
    • http://nhan-tien-quoc-te-vn.online/uploads/1/3/0/5/130590545/7322965.pdf
    • http://tiffanybellah.com/uploads/1/3/0/5/130539987/tivivupomakuvegorik.pdf
    • http://kpugaming.com/uploads/1/3/0/7/130775186/gofiv.pdf
    • http://burgerbattle.net/uploads/1/3/0/5/130588567/tutezugozeti.pdf
    • http://www.jimsvan.com/uploads/1/3/0/6/130604447/zanedujite.pdf
    • http://willowsmobilehomepark.com/uploads/1/3/0/5/130590589/8790237.pdf
    • http://royaltrainridesrentals.com/uploads/1/3/0/7/130739082/ee4491f3e464.pdf
    • http://skincarebyshonnah.com/uploads/1/3/0/4/130488332/735a17a1e.pdf
    • http://xn--nuevavisin-obb.com/uploads/1/3/0/2/130288722/xizunusudufezitufa.pdf
    • http://davidimlahbarrister.com/uploads/1/3/0/7/130739069/5860871.pdf
    • http://handiletter.com/uploads/1/3/0/6/130639318/1170323.pdf
    • http://moldalbany.com/uploads/1/3/0/3/130379307/5444320aab46.pdf
    • http://emsbackoffice.com/uploads/1/3/0/3/130323765/zawuruneke.pdf
    • http://sqftestwo.com/uploads/1/3/0/4/130476200/6096577.pdf
    • http://mybungalowshoa.com/uploads/1/3/0/5/130589050/wekavedov.pdf
    • http://totsaroundtheclock.gammaxiques.org/uploads/1/3/0/4/130476215/130476215.html#bohemian+rhapsody+jarrod+radnich+piano+pdf
    • http://bryancumming.com/up

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f6f.bin
46adfad295d91c2f642507f7f21daff100c464f9785052c6c0bcdbd0e95d4931		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F6F 7720 bytes

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