Malicious PDF — malware analysis report

Static analysis result for SHA-256 faa09a0645376287…

MALICIOUS

PDF

44.1 KB Authoring application: PDFedit
MD5: 4a54053e39410f1a37dd9d924eeb7dc9 SHA-1: 1a83bec99df229b8cddd929aff113c09326fa0d6 SHA-256: faa09a06453762879cae753c3ed389f46d991fade91bb28aa20cce4c2664f468
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF contains a link farm designed to SEO poison, directing users to download other PDF files. The document body mentions 'Appserv for windows 7 32 bit', suggesting a lure to trick users into downloading potentially malicious software. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing and malicious download intent.

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://cosy-home.org/uploads/1/3/0/5/130588773/3311272.pdf
    • http://unsocialmediapp.com/uploads/1/3/0/2/130291640/fuzemowipamugajipam.pdf
    • https://vebesose.weebly.com/uploads/1/3/0/4/130475994/7841107.pdf
    • http://tressesaunaturale.com/uploads/1/3/0/6/130621719/nozefufiwezenazi.pdf
    • https://surixikufesa.weebly.com/uploads/1/3/0/2/130289648/dulobibiz.pdf
    • http://cmprofessionaleventsdbscg.com/uploads/1/3/0/2/130289430/kobuvobejivavaf.pdf
    • http://nene.aquacity67.ru/uploads/2020/01/29/bixexaluv_xedevupim_levujelorurela_mumukuzajodok.pdf
    • http://bejustalittlebetter.com/uploads/1/3/0/6/130620942/130620942.html#appserv+for+windows+7+32+bit

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001210.bin
4acd46e24887e5c76ee1f7322dfbff248028e40bda69a3cd1399b7f8548a0de6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1210 9464 bytes
font_01_sfnt_off000056b9.bin
94f55cf58bd2a4ece316bdfcb3b45244720101e87708acf0045843f1507dac17		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56B9 16080 bytes

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