Malicious PDF — malware analysis report

Static analysis result for SHA-256 8eb4d7c90ec3c3f2…

MALICIOUS

PDF

36.8 KB Authoring application: GIMP
MD5: 766372f24baf9712bb2e4df50fe02f26 SHA-1: cdfaabf3ae94202b5763c34fca4d726e928b5823 SHA-256: 8eb4d7c90ec3c3f2f37161f80875fb3438563a7afcdb9d8dabbc7a18140966b4
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content, as suggested by the 'PDF_SEO_LINK_FARM' heuristic and ClamAV detection. The document body itself is heavily obfuscated and does not provide clear user-facing content, reinforcing the interpretation that the primary function is to host and link to external resources.

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://southeastjet.com/uploads/1/3/0/5/130540065/bemevesotiv.pdf
    • http://southerntileinstallers.com/uploads/1/3/0/5/130551949/7722094.pdf
    • http://360landscaping.net/uploads/1/3/0/5/130588924/gusekegawuvume-lesatonodajan-zijamuxenog-pakevaja.pdf
    • http://desatascossantcugat.com/uploads/1/3/0/6/130639081/4303042.pdf
    • http://lisagumerman.com/uploads/1/3/0/5/130551864/gesulozak-miwenumoxiroda-sinisu-puzotakusuxaji.pdf
    • http://spiritualteapot.shop/uploads/1/3/0/3/130323311/wuram_ragowif_rowafod_guvusidafuw.pdf
    • http://hostmaster.paddockcleaneruk.co.uk/uploads/1/3/0/8/130814200/356765.pdf
    • http://laement.com/uploads/1/3/0/4/130435738/fakukuwe.pdf
    • http://onceuponatimeclassics.com/uploads/1/3/0/2/130287472/9120857.pdf
    • http://northcountypawscause.org/uploads/1/3/0/4/130489771/guxizevob-gotilufowofewuj.pdf
    • http://nxtgenacademy.com/uploads/1/3/0/6/130639087/3961068.pdf
    • http://pingboguojiguanwang.br3h.com/uploads/1/3/0/7/130739603/130739603.html#pericardial+effusion+pulsus+paradoxus
    • http://360landscaping.net/uploads/1/3/0/5/130588924/gusekegawuvume-lesatonodajan-zijamuxenog-pakevaj

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003775.bin
3657d557e52e77d1a9b9169e14dda09e2788f8a245217c11a40d4c3310827a00		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3775 8696 bytes

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