Malicious PDF — malware analysis report

Static analysis result for SHA-256 f20ca0484391eb3a…

MALICIOUS

PDF

57.3 KB Authoring application: Pdftk
MD5: 7f5bf22e5ab373335b2ebe63d466daa8 SHA-1: bac6f29a6786781d223d551d6b0423ee4a6cd3d7 SHA-256: f20ca0484391eb3af4c43a5f6f4a7c719289da68cb2fe8dfaba73ced0ce709b3
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents hosted on various domains. This behavior is indicative of a link farm designed to distribute malicious content or conduct phishing operations. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing classification.

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://legacyandalchemy.net/uploads/1/3/0/7/130776421/xasob_nujanifo_wuviji.pdf
    • http://site.diamantinc.ca/uploads/1/3/0/5/130543488/b72f8a.pdf
    • http://satellitesessionsmusic.com.au/uploads/1/3/0/4/130483300/8391817.pdf
    • http://takeabowkilmarnock.com/uploads/1/3/0/4/130489081/limemadateboga-fufad-mizekomamu-gedevuxedov.pdf
    • http://boxclothingco.com/uploads/1/3/0/6/130620530/xefozuzapamezi.pdf
    • http://wisculpture.com/uploads/1/3/0/4/130488248/wewazokomebukum_kusiva_xovisorupoboxel.pdf
    • http://palladianpartner.com/uploads/1/3/0/3/130323110/lozefe.pdf
    • http://myremio.com/uploads/1/3/0/3/130313471/zobefetelomibolizi.pdf
    • http://newstylemarket.com/uploads/1/3/0/3/130313149/130313149.html#biotic+and+abiotic+stresses+in+plants

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000126d.bin
f797aace1d0cb2fe3b9fc457713976c71e510e50100c3c6e8a4a021d3ef3d667
pdf-font-stream PDF embedded font (sfnt) at offset 0x126D 8272 bytes
font_01_sfnt_off0000a582.bin
6dc6e07f93ae70488a19e8a398a1c6cda2f5723fc3d3cbe180c5afbb10c3611e
pdf-font-stream PDF embedded font (sfnt) at offset 0xA582 2864 bytes