Malicious PDF — malware analysis report

Static analysis result for SHA-256 864b89a85a40012e…

MALICIOUS

PDF

38.5 KB Authoring application: pdf-parser
MD5: 57acbeb23f765198116c317c196af96b SHA-1: cb29d0302f27308b608e7b80ba1f62bb27e49363 SHA-256: 864b89a85a40012ee3dd49d710b4ecf8ceb1b9a58e2d83fde17d4378962a31b5
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious distribution intent. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery mechanisms.

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://jarofozizad.weebly.com/uploads/1/3/0/2/130272892/jibabudad.pdf
    • http://pani.begettest13.fun/uploads/2020/01/28/tafefanetesi-biworokem.pdf
    • http://fiwefer.idealista-login.com/uploads/2020/01/28/degixenudez-seperemebex-tovinobid.pdf
    • http://dugivuxo.visitbilyarsk.ru/uploads/2020/01/28/d7952.pdf
    • http://vekakevila.kuhni07msc.icu/uploads/2020/01/28/kosewamok-ravuzagawel-sovulebuvavi-ninemewafuzadud.pdf
    • https://kapedakit.weebly.com/uploads/1/3/0/2/130291939/4171567.pdf
    • http://moderncountrydoctor.ca/uploads/1/3/0/6/130605149/3131266.pdf
    • http://truthbeshonefilms.com/uploads/1/3/0/4/130483243/9481597.pdf
    • http://splashsteamboat.com/uploads/1/3/0/6/130640208/d0208913cbc924.pdf
    • http://basecamp-branding.com/uploads/1/3/0/6/130621893/sezisu.pdf
    • http://nupelicanparty.org/uploads/1/3/0/6/130604671/130604671.html#perianal+abscess+caused+by+stress

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001296.bin
18390ab983e6d97eaf5e4f870ac2fdab39c90dc9a7596009f466529afa10a44a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1296 7760 bytes

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