Malicious PDF — malware analysis report

Static analysis result for SHA-256 315090d028a23608…

MALICIOUS

PDF

38.6 KB Authoring application: Poppler-utils
MD5: d90e7b9d09fcaff5fddc807f5b3c9676 SHA-1: e73c7a499c7a90b2182b4d8377b7133fd7fa9558 SHA-256: 315090d028a2360811b0679e5ef5d695e72b09e17f02d4e8c650e3ebd79692ed
150 Risk Score

Malware Insights

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

The PDF file exhibits a critical heuristic firing for a link farm, containing numerous embedded URLs. These URLs likely lead to phishing sites or further malware. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' strongly suggests a phishing or traffic redirection campaign. No scripts were extracted from this sample.

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://www.mathtutoringumichigan.com/uploads/1/3/0/8/130873794/labuvukos.pdf
    • http://spennconrail.com/uploads/1/3/0/5/130588763/48fb513.pdf
    • http://turningpointwellnesscenter.com/uploads/1/3/0/5/130543813/4dc2e.pdf
    • http://user-centred.design/uploads/1/3/0/2/130292013/cb722c31e9.pdf
    • http://japanesepractice.guru/uploads/1/3/0/7/130738534/992592.pdf
    • http://www.alex-kwon.com/uploads/1/3/0/7/130776110/643200.pdf
    • http://edit1971.com/uploads/1/3/0/7/130775561/fudigegirije.pdf
    • http://meteorcrater.net/uploads/1/3/0/5/130550830/kakebamulemesa-dewotitu.pdf
    • http://energystorageeurope.com/uploads/1/3/0/5/130540645/jugun.pdf
    • http://mutualhousingny.net/uploads/1/3/0/7/130738847/tagumejijasogigon.pdf
    • http://rainbowkaleki.com/uploads/1/3/0/8/130874498/nomolif-fuxuxidivataj-ramalowuf-sumiraranowef.pdf
    • http://consplayers.com/uploads/1/3/0/7/130739212/b7c536f8.pdf
    • http://connextconference.org/uploads/1/3/0/2/130272260/maruvut_vikudozad_komarodumumuso_pozuduruku.pdf
    • http://gurtinardhouse.com/uploads/1/3/0/4/130475877/viwodudibo-wojuruxaj-wugunide.pdf
    • http://www.betterhealthsupport.net/uploads/1/3/0/5/130543772/8673742.pdf
    • http://golrankings.com/uploads/1/3/0/7/130739423/6198715.pdf
    • http://www.harvesthealingarts.com/uploads/1/3/0/7/130738889/duturubu.pdf
    • http://ethereum.cards/uploads/1/3/0/2/130288416/mibuxe.pdf
    • http://0abe.brdge.org/uploads/1/3/0/9/130969552/130969552.html#expression+of+full+adder+using+nand+gates
    • http://www.betterhealthsup

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000038fc.bin
421ed038a0e51d7d36c4f9d5172fe90b5b3115fb51d31c8aeb040c5b07cc4f69
pdf-font-stream PDF embedded font (sfnt) at offset 0x38FC 7928 bytes