Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d4dcaf7168a01e7…

MALICIOUS

PDF

37.2 KB Authoring application: Mobipocket Creator
MD5: c456326ab92f8855f77efd34a1c041f7 SHA-1: e807265a93a711eb8534eb72aeb2cea6cd7e20c5 SHA-256: 8d4dcaf7168a01e7f74b4fe440b04b78afadecbe2594c9383375c25f874d5242
160 Risk Score

Malware Insights

MITRE ATT&CK
T1059.003 Windows Command Shell T1204.002 Malicious File

The PDF contains a large number of embedded URLs, indicating a link farm likely used for SEO poisoning or phishing. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' indicates the document instructs the user to copy and paste content into a command-line interface, a common tactic to trick users into executing malicious commands. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. The primary attack pattern involves social engineering to bypass security controls and download further malicious content.

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
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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://gaypornaddict.com/uploads/1/3/0/5/130539269/sotitux_dutukidimokizu_funas_jamalino.pdf
    • http://nationalparkingassociation.org/uploads/1/3/0/7/130776206/243531.pdf
    • http://moabgearheads.com/uploads/1/3/0/4/130488750/c1fec1a2182.pdf
    • http://vendoradvocacyguild.org/uploads/1/3/0/6/130604470/3af6f5bf93fd8.pdf
    • http://campaignwp.com/uploads/1/3/0/6/130621812/2cd4cb751172724.pdf
    • http://friend-vibes.com/uploads/1/3/0/2/130289503/remexuk-tilivo.pdf
    • http://thomasghenry.io/uploads/1/3/0/7/130739268/tuxobidoseraset.pdf
    • http://djtlmusic.com/uploads/1/3/0/6/130639689/wewanipanikifo_topitu.pdf
    • http://3doorsnowalls.com/uploads/1/3/0/7/130775400/jalenajabodeniga.pdf
    • http://nfloo.com/uploads/1/3/0/7/130738912/ad0e2a171a6a5.pdf
    • http://excelappdevelopment.com/uploads/1/3/0/6/130621176/1251105.pdf
    • http://artfultemptress.com/uploads/1/3/0/2/130288310/gevafamobajoda.pdf
    • http://sethslawnandgardencare.com/uploads/1/3/0/7/130739944/kutarijejeruboxixa.pdf
    • http://drpatty.net/uploads/1/3/0/3/130313638/130313638.html#windows+cpl+command+list
    • http://djtlmusic.com/uploads

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000369a.bin
f6482d53e0bc22579ad6f689e0beefa72a9bd7ec326b64691ec9d9212c489d08		 pdf-font-stream PDF embedded font (sfnt) at offset 0x369A 8632 bytes

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