Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b3f13ed9ab142fa…

MALICIOUS

PDF

43.9 KB Authoring application: GIMP
MD5: d6657f0031e8307f73649a34f63121e2 SHA-1: 0e92529badf095efa0a83db6cfa04977a54dbe0c SHA-256: 8b3f13ed9ab142fa79fec2f72ca3244b86e096526433cd7a27c46527f7b1e551
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. This indicates a likely phishing or redirection campaign. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports the phishing classification. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery mechanisms.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://rejoso.zoomroom63.ru/uploads/2020/01/29/dadutidevasolexezo.pdf
    • http://myoregonterritory.com/uploads/1/3/0/4/130476214/5697658.pdf
    • http://300wyandotte.com/uploads/1/3/0/3/130313122/lotezuxiperanajux.pdf
    • http://customerfocusedlearning.com/uploads/1/3/0/4/130488445/d1caae2f858e.pdf
    • http://innovationbroadcastservice.live/uploads/1/3/0/4/130436095/wanalufusosositakop.pdf
    • http://superawesomegadgets.com/uploads/1/3/0/4/130476818/847031.pdf
    • http://schoolviews.com/uploads/1/3/0/7/130738710/rarusaja-warudepamo-jabeje-bataved.pdf
    • http://armsandmindsrenovations.com/uploads/1/3/0/6/130620644/9234791.pdf
    • http://psycholoog-gooi.net/uploads/1/3/0/6/130639019/pamigagilusemebut.pdf
    • http://kelseyelizabethphoto.com/uploads/1/3/0/4/130476917/999503.pdf
    • http://chugachpt.com/uploads/1/3/0/3/130324112/84b76935.pdf
    • http://richardsnashall.net/uploads/1/3/0/6/130604025/kuriluwozerore.pdf
    • http://nationalriskmanagementgroup.com/uploads/1/3/0/5/130551206/130551206.html#root+cause+analysis+simplified+tools

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001381.bin
6972168571c9b30c6d6df0b15eba86b02760d127f9084e4540509760da56f316		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1381 9152 bytes
font_01_sfnt_off0000654a.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x654A 16036 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.