Malicious PDF — malware analysis report

Static analysis result for SHA-256 20365dadda59ec3f…

MALICIOUS

PDF

39.0 KB Authoring application: SWFTools
MD5: d9cd4f538eb5464640ac8cc402f7b79a SHA-1: 6089578267db3396aa9d321005496219124c3f6a SHA-256: 20365dadda59ec3f37424769e371003b7b96256b2bc4f8cd2b5e91e22a3f0ccb
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links to other PDF files hosted on various domains, a technique commonly used for SEO poisoning or to redirect users to malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly indicate malicious intent. The embedded URLs are the primary indicators of compromise, suggesting a redirection or phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://droscarparada.com/uploads/1/3/0/6/130605069/perobomiduwaf_bomuze_diwemupux.pdf
    • http://mintzathletics.com/uploads/1/3/0/7/130739778/6240838.pdf
    • http://pmckfunctionalfitness.com/uploads/1/3/0/8/130814120/51426cd.pdf
    • http://ncrage.com/uploads/1/3/0/3/130379058/2464291.pdf
    • http://aboutdrycleaning.com/uploads/1/3/0/5/130540699/tomenevoravodej.pdf
    • http://drgnwear.club/uploads/1/3/0/5/130542983/1014385.pdf
    • http://splinteredminds.com/uploads/1/3/0/8/130813696/88bf36fc6d7e.pdf
    • http://buythevinyl.com/uploads/1/3/0/3/130323120/9895462.pdf
    • http://zilischasphalt.com/uploads/1/3/0/5/130547275/xefefikoseguromem.pdf
    • http://escaperoomtysonscorner.com/uploads/1/3/0/7/130740342/vikodojaxo.pdf
    • http://www.sweetaddition.com.au/uploads/1/3/0/6/130604812/bavad_vijet_lobotapinili_depavuwetenu.pdf
    • http://www.paintingwithjustin.com/uploads/1/3/0/2/130272886/130272886.html#partial+placenta+previa+resolution
    • http://aboutdrycleaning.com/upl

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000413a.bin
d9f721bd0fdfb756fedb80927db9adca415fc13da3e40e3efe87c4e434ca13c8
pdf-font-stream PDF embedded font (sfnt) at offset 0x413A 8036 bytes