Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec703e6702bfbaab…

MALICIOUS

PDF

66.5 KB Authoring application: GIMP
MD5: e6915f78d5a06f067f91c8cac5d66db3 SHA-1: 8f3b4a4859f1584e9ae4a6734a0b473f8e48f880 SHA-256: ec703e6702bfbaab2991991e27ff91bf04d4369f20b9b04b6bb3ad0a54d584c4
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or a distribution mechanism for further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://dollarstore-plus.com/uploads/1/3/0/2/130274279/fonidetavipob.pdf
    • http://mymindfulconnections.com/uploads/1/3/0/5/130588872/91b9ee0.pdf
    • http://emrcontractors.com/uploads/1/3/0/2/130287973/dfcd993d66.pdf
    • http://burzykowski.net/uploads/1/3/0/3/130323566/fufireniritom_jafofawokewiro_rufuwujodefo.pdf
    • http://ridingintherumbleseat.com/uploads/1/3/0/7/130740316/govuvifivaraxik_waviw_vulasakik.pdf
    • http://auditfindings.net/uploads/1/3/0/5/130539992/suwepo-lokuzexevep-zejam-nadaderekowizeg.pdf
    • http://caveofchaos.com/uploads/1/3/0/7/130776585/7fc1427.pdf
    • http://kristinasblingbox.store/uploads/1/3/0/5/130550681/tefobusoluref.pdf
    • http://nuvisionabroad.com/uploads/1/3/0/6/130621402/sudufuv.pdf
    • http://vintagevancouvan.com/uploads/1/3/0/6/130621022/bupelowikexaxaj.pdf
    • http://fakeangels.space/uploads/1/3/0/2/130289426/ed9dbd.pdf
    • http://mesheracapital.com/uploads/1/3/0/3/130379142/vixufiw-pakete-temuka.pdf
    • http://seniorsyogacertification.com/uploads/1/3/0/2/130291485/cc95842c246.pdf
    • http://harold-stanley-junior.pleasingfood.com/uploads/1/3/0/5/130546519/130546519.html#list+iata+airline+codes+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002b40.bin
037381a706782dcdce0985858d7d0e7736bcaabddfcc52b3a22c63e3861db380		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B40 11668 bytes

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