Malicious PDF — malware analysis report

Static analysis result for SHA-256 10055e996f393a2d…

MALICIOUS

PDF

39.5 KB Authoring application: pstoedit
MD5: d015e1e283ddd0e3352a9866114e798b SHA-1: d90b9a90a38576dfcca5655d31ff43abf699d238 SHA-256: 10055e996f393a2d3b054405e80dc91a963529d0392afb270aaeed364281fa21
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to distribute further malicious content. ClamAV and ML heuristics confirm the malicious nature of the file, classifying it as phishing-related. The embedded URLs are the primary indicators of compromise.

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://livemusicgozo.com/uploads/1/3/0/6/130620678/5994824.pdf
    • http://smokeytrout.com/uploads/1/3/0/5/130551343/672302.pdf
    • http://basementcityproductions.com/uploads/1/3/0/3/130313272/fujulalufoxitajatu.pdf
    • http://braasch-sicherheit.com/uploads/1/3/0/3/130323207/rudip-fanazivitu-giviwafipani-vemudu.pdf
    • http://mcfeesilversmith.com/uploads/1/3/0/2/130272877/dab36ef753.pdf
    • http://3chairs.net/uploads/1/3/0/5/130541327/5967131.pdf
    • http://isakkdesign.com/uploads/1/3/0/5/130540049/d36a03af.pdf
    • http://narkolepsy.com/uploads/1/3/0/3/130324206/fatogomos-pumiwupiso-fisuk-walul.pdf
    • http://ezkran.ru/uploads/2020/01/29/muwikavopudipodak.pdf
    • http://619756869709789420.com/uploads/1/3/0/6/130620460/didufixebuforojas.pdf
    • http://citataxpayers.org/uploads/1/3/0/3/130379527/f07f6.pdf
    • http://rnbylpxfi.weebly.com/uploads/1/3/0/6/130639698/lemiwudire.pdf
    • http://lollye.com/uploads/1/3/0/5/130588388/fuvawenag-rifabo.pdf
    • http://besavings.weebly.com/uploads/1/3/0/6/130639051/zejanowebe_poroviladul.pdf
    • http://tex.mmoobzor.ru/uploads/2020/01/28/xijebex.pdf
    • http://drakensbergsouthafrica.com/uploads/1/3/0/2/130272231/5719799.pdf
    • https://pepovisudam.weebly.com/uploads/1/3/0/6/130604903/notes-sofivupik.pdf
    • http://n2chains.com/uploads/1/3/0/3/130313166/piraroki.pdf
    • http://palliativecareforuganda.com/uploads/1/3/0/4/130483515/123013.pdf
    • http://consolineaudiovisual.com/uploads/1/3/0/5/130540869/130540869.html#read+autobiography+of+a+face+online

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000015d4.bin
f4b7a3a5bb14531a3993358ad19d30713ecf41b0f38e53c755c478aab34e5776		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15D4 8744 bytes

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