Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ed31dff4007af8b…

MALICIOUS

PDF

40.3 KB Authoring application: pstoedit
MD5: 8155128b5a21ceecec2076354b79f12c SHA-1: 0539fb1a268088f39fe2ea1485f869ab7f9259b1 SHA-256: 0ed31dff4007af8b903c034c7f56a47bdacca133decc9feaf15872740c92bb2f
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified as a link farm, with the primary URL pointing to a page offering a solution for phone data transfer. This strongly suggests a phishing or malware distribution attempt. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' further supports this assessment.

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 https://pojatokazoniso.weebly.com/uploads/1/3/0/4/130488410/nijaduguvanujokavuba.pdf
    • http://noj.uranalitika.ru/uploads/2020/01/28/murexozovesasul.pdf
    • http://kuko.cityglush17.icu/uploads/2020/01/27/261575fb642aff.pdf
    • http://midwestmusclebullyclub.com/uploads/1/3/0/3/130313619/juwolebasumow.pdf
    • http://rosspsi.ru/uploads/2020/01/29/nozalirarinef_xunomimusele.pdf
    • http://veporuto.bungartz.ru/uploads/2020/01/27/9371260.pdf
    • http://jani.sardelas.ru/uploads/2020/01/27/waxepoxol_gilanafitavak_serevesexu_nisefadanakufuk.pdf
    • http://dasselcokatobands.weebly.com/uploads/1/3/0/6/130620512/b778c70.pdf
    • http://myopros.tech/uploads/2020/01/29/1951804.pdf
    • http://field-tek.com/uploads/1/3/0/6/130604348/lexug-sugalap-xovaguvodub.pdf
    • http://dimeriwixe.constellars.com/uploads/2020/01/29/timined.pdf
    • https://gagewixopevu.weebly.com/uploads/1/3/0/4/130489725/wadibokiliririnasis.pdf
    • http://lotusventura.com/uploads/1/3/0/6/130620764/9776435.pdf
    • http://sngprinting.com/uploads/1/3/0/5/130551066/wutetus.pdf
    • http://mrdurfee.weebly.com/uploads/1/3/0/5/130545333/zipafodorib.pdf
    • http://misssupremepurityqueen.com/uploads/1/3/0/6/130620791/130620791.html#restore+whatsapp+backup+from+android+to+icloud

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001447.bin
39b612dca4be45a33b7ca522a5835d2aa3c7b7322c5cf1621e325ae0547ef9fc
pdf-font-stream PDF embedded font (sfnt) at offset 0x1447 8132 bytes