Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7f62b27f3c44604…

MALICIOUS

PDF

58.7 KB Authoring application: Poppler-utils
MD5: ecfa8780787d930a5c9a4f8aaab98783 SHA-1: af4fdd3efeb6970e0644d2500b774294078e1391 SHA-256: c7f62b27f3c44604b7bd1cbe9ae175eb8299ce8623e8e942339e7d4bd6813188
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links to external PDF files hosted on various domains. This behavior is indicative of a link farm or a phishing campaign designed to redirect users to malicious content. The ClamAV detection and ML classifier further support its malicious nature. No scripts were extracted, and the document body primarily contains garbled text and the URLs.

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://rogerrealty.com/uploads/1/3/0/5/130588721/9496728.pdf
    • http://54north.info/uploads/1/3/0/6/130605335/sejovibeguzal.pdf
    • http://financewebtop.com/uploads/1/3/0/5/130547924/6bd835ab988.pdf
    • http://northernsound.com/uploads/1/3/0/7/130740553/824232.pdf
    • http://ninjagoartoftheninja.com/uploads/1/3/0/6/130620778/7d8f78.pdf
    • http://rivereasttravel.com/uploads/1/3/0/5/130539496/menir.pdf
    • http://davisstrategies.com/uploads/1/3/0/4/130483801/rurejarikex.pdf
    • http://nsanzineza.com/uploads/1/3/0/2/130288316/4900734.pdf
    • http://markkraemer.net/uploads/1/3/0/3/130379804/kitixujewijumarux.pdf
    • http://cmprofessionaleventsdbscg.com/uploads/1/3/0/7/130776206/risowalo_sudiji.pdf
    • http://xx2tbq.brdge.org/uploads/1/3/0/6/130604368/4752135.pdf
    • http://ivybradley.com/uploads/1/3/0/6/130621226/47284d21845d5.pdf
    • http://shannonkerseytherapist.com/uploads/1/3/0/4/130491166/ba2f816c62d71.pdf
    • http://jacobsa.net/uploads/1/3/0/5/130589229/mazopusowojibibisug.pdf
    • http://tstus.slpny.com/uploads/1/3/0/7/130775845/130775845.html#vertical+aerial+photography+definition

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000134f.bin
e395d58ca3cda441ee4d590523b15708fa2570c8f8b8dca6714fe63f680d1a1e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x134F 9716 bytes

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