Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc0b9df37e5358c0…

MALICIOUS

PDF

57.1 KB Authoring application: Solid Converter PDF
MD5: 420666f1c6ca2c2805eec79ed44fbaf6 SHA-1: 72c7240e0e8d894c8201ea27c413ed7574f58d01 SHA-256: cc0b9df37e5358c0fa7f77f137b4619cbd42541b04aba1769b115065d171423c
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 PDF files, suggesting a link farm or SEO manipulation tactic. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document likely instructs the user to open a password-protected archive, a common social engineering technique to bypass initial security scans. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further confirms its malicious nature, likely related to phishing or traffic redirection.

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://nexuschapel.org/uploads/1/3/0/4/130483757/vofepotajokade-xirowekalokaviw.pdf
    • http://centerforpilates.com/uploads/1/3/0/2/130288441/febf0a1a9cc.pdf
    • http://whirlpoolrepaircenter.net/uploads/1/3/0/2/130289571/925084.pdf
    • http://tahitianvillageapartments.com/uploads/1/3/0/3/130313638/xetibiteba_tuvepebug_waxuzexov.pdf
    • http://monashhomesolutions.com/uploads/1/3/0/4/130488993/lonagu_litovaxadaf_tixezejepefidim_kopubawijip.pdf
    • http://bemightyproject.com/uploads/1/3/0/4/130490875/5e7bb4c7dc9.pdf
    • http://mindforyou.org/uploads/1/3/0/5/130588266/130588266.html#chillerama+full+movie++720p

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011df.bin
87305441938e1c85aae5974aef2113a85b808ba2fccb9c69f5ac492d850e5089		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11DF 8664 bytes
font_01_sfnt_off00007be6.bin
f420fc2bf76b66e864f1a9155bd63cc18d3545577dcb0570860856ed7bfe5694		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BE6 16780 bytes
font_02_sfnt_off000093db.bin
356d62ebb448df263129058524058fab8bbdec1225170301595caa68d8027837		 pdf-font-stream PDF embedded font (sfnt) at offset 0x93DB 8824 bytes

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