Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8e4822383b206a3…

MALICIOUS

PDF

39.3 KB Authoring application: PDFBox
MD5: 16624c9df4c6bb6af0a9475da16cbdb8 SHA-1: c1b8556a2592a78f7f6dd9edabc6d627ff62835d SHA-256: d8e4822383b206a39c71d7506004e1357cab7f564edc8d8c7d26f7a4bd2c952d
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique commonly used for SEO spam or to redirect users to malicious sites. The ClamAV detection and ML classifier strongly indicate malicious intent. The document body contains garbled text, suggesting it is not intended for direct user consumption but rather as a vehicle for the embedded links.

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://mrsteamparts.com/uploads/1/3/0/7/130775166/89ba2.pdf
    • http://deblokletter.be/uploads/1/3/0/7/130775181/zusun_midebo_xapilud.pdf
    • http://artsgenome.com/uploads/1/3/0/2/130270921/tukuresajasi.pdf
    • http://crosswoundsfoundation.org/uploads/1/3/0/6/130622049/2442466.pdf
    • http://dieporzellanklinik.de/uploads/1/3/0/4/130476866/lulojikebosasin_resexulomumiba_vomebozagexeso_xanifuvipuba.pdf
    • http://un-guilty.com/uploads/1/3/0/2/130272240/7361435.pdf
    • http://onedirectiontickets.net/uploads/1/3/0/6/130639423/firis.pdf
    • http://certifiedemergencyservices.net/uploads/1/3/0/7/130776411/d91cb4227ac.pdf
    • http://stemteachershou.com/uploads/1/3/0/7/130739956/68653c704ca1a.pdf
    • http://connscorner.com/uploads/1/3/0/5/130545484/1e0168a6766.pdf
    • http://jacoblrice.com/uploads/1/3/0/6/130620546/9683178.pdf
    • http://achomecleaningservices.com/uploads/1/3/0/3/130313783/boduvozelok_dibemadipaz_pegodazip.pdf
    • http://tssfarm.org/uploads/1/3/0/5/130543394/c2a5113b16.pdf
    • http://modernparentingnetwork.com/uploads/1/3/0/6/130603744/792566.pdf
    • http://mrnicecanada.com/uploads/1/3/0/2/130270898/2639097.pdf
    • http://sendsomehappymail.com/uploads/1/3/0/6/130620567/funab.pdf
    • http://solarscrappers.com/uploads/1/3/0/8/130814515/9269417.pdf
    • http://www.joshkanownik.com/uploads/1/3/0/2/130271207/rowulak.pdf
    • http://cjentzart.com/uploads/1/3/0/3/130323422/267351.pdf
    • http://xowf.com/uploads/1/3/0/6/130621789/gitufituzut_lamobur_meliz_gutixe.pdf
    • http://o2ki0.bpmtc.com/uploads/1/3/0/5/130542964/130542964.html#honors+algebra+2+quadratics+test
    • http://jacoblrice.com/uploads/1/3

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003946.bin
687e6edb4225b9a539f5fe1d58189b32fa9864cbcc059d17d0f2a759a25d5e92		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3946 8208 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.