Malicious PDF — malware analysis report

Static analysis result for SHA-256 9edf763218596eba…

MALICIOUS

PDF

35.2 KB Authoring application: Solid Converter PDF
MD5: 08c41dd762f2a2d7d575a431d5191b74 SHA-1: 46b4957d7a63a555536fcfd4d0a1babeb91125c1 SHA-256: 9edf763218596eba2548905a75adafd7349fe162f0c7d42cf5af1a7cf601a31a
160 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to other PDFs, indicating a link farm for SEO poisoning. The document body also contains a password protection lure, suggesting the user is expected to provide credentials or download an archive. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' further supports a phishing and redirection scheme.

Heuristics 4

  • 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
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://squigeydesign.com/uploads/1/3/0/4/130489052/ralomoganox_majel_kokul_xofudexamefi.pdf
    • http://msvcr90dllmissing.weebly.com/uploads/1/3/0/5/130543761/lozemiladenamo.pdf
    • http://mgriffithdesign.com/uploads/1/3/0/6/130605120/vixizazosuwujujadifo.pdf
    • http://christusvictorlutheranchurch.org/uploads/1/3/0/2/130292179/lizetotajegudutuvo.pdf
    • http://josefulgencio.com/uploads/1/3/0/6/130620325/9807674.pdf
    • http://nvacupuncture.org/uploads/1/3/0/6/130604521/magekoweg.pdf
    • http://btmamusic.com/uploads/1/3/0/6/130604411/lujurasibuzeme-pivodojisu-mojejosa-paxise.pdf
    • https://merogakusaga.weebly.com/uploads/1/3/0/2/130291676/7920431.pdf
    • http://jurongdistrict22.com/uploads/1/3/0/4/130488308/wafolorajikip_jovevufuli_boxexiruxi.pdf
    • http://necdm.org/uploads/1/3/0/5/130545001/1a0e3d8b6e6fdd5.pdf
    • http://caddielands.com/uploads/1/3/0/6/130605238/130605238.html#openathens+username+and+password+fre

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012de.bin
bfb68d195987546d0b2a2b76940e6642e8e53f554bb4c52d32d5eedd691e6759		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12DE 7816 bytes

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