Malicious PDF — malware analysis report

Static analysis result for SHA-256 a38d87645aebd2ee…

MALICIOUS

PDF

56.9 KB Authoring application: Scribus
MD5: 7690c7cb0108e4be5e19eadd2bf0b2ef SHA-1: 5648d87cf176a5dcfc9df04cb2790a41dca957e5 SHA-256: a38d87645aebd2ee46699a3f09f77071f8e9b59f36c9edfcae9a1505e1f7420b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links to external PDF documents hosted on various domains. This behavior is indicative of a link farm or redirection scheme, commonly used in phishing or malware distribution campaigns. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent.

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://nycgymnasticsmovement.org/uploads/1/3/0/4/130476104/livumutowuviri.pdf
    • http://brianghilliotti.com/uploads/1/3/0/6/130621209/236784.pdf
    • http://besthawaiilandscaping.com/uploads/1/3/0/4/130483902/82ce777f3eb60e.pdf
    • http://phx81supplies.com/uploads/1/3/0/5/130539922/miwidazopevazusilij.pdf
    • http://loughmorensstemaward.com/uploads/1/3/0/3/130324030/patixiron.pdf
    • http://seta.topanswers.top/uploads/2020/01/28/xozamokiva.pdf
    • http://zopatote.kinodreamg.icu/uploads/2020/01/27/fosenuju.pdf
    • http://xed.saojose.online/uploads/2020/01/27/1e5395d6e3207.pdf
    • https://wasazesogo.weebly.com/uploads/1/3/0/2/130271161/mavalanijobiwid-zajeweruderexan-mosoda-rofegudutasowe.pdf
    • http://somersetfoodtrail.org/uploads/1/3/0/5/130589415/130589415.html#babul+supriyo+odia+album+songs

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012b8.bin
b35c5e5a159f4f8f8e157a3772cce089cf9ddd6bba9bd1c0a58344c69538b93f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12B8 9012 bytes
font_01_sfnt_off0000905b.bin
77e6cdca0e6892567e71389e9cd67f975bdaed4d0c86e729cb28df841703bf32		 pdf-font-stream PDF embedded font (sfnt) at offset 0x905B 10900 bytes

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