Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1152feaad2e17c0…

MALICIOUS

PDF

34.2 KB Authoring application: Karbon
MD5: 4c530a34465241a7015aca005c0394ca SHA-1: e877a283df594ca0fc23c9b3f24ec123a6466033 SHA-256: a1152feaad2e17c07964a08fb6e792f13ab88ebffe7664c1147409075fa86905
136 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to redirect users to malicious PDF documents, as indicated by the 'PDF_SEO_LINK_FARM' heuristic. The document body also contains urgency and payment-related lures, further supporting a phishing or scam attempt. The ClamAV detection confirms the malicious nature of the file, classifying it as 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. The primary attack pattern involves tricking users into downloading and potentially opening further malicious content via a series of embedded links.

Heuristics 5

  • 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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://rachelmcoburn.net/uploads/1/3/0/2/130288380/8289877.pdf
    • http://getitgatorauto.com/uploads/1/3/0/5/130550790/sujovexininope-bisukotokizad.pdf
    • http://rifemachine.info/uploads/1/3/0/3/130379611/8630221.pdf
    • http://psysourcecode.com/uploads/1/3/0/2/130273576/ab89ff8f.pdf
    • http://ldhbuyshomes.com/uploads/1/3/0/4/130488846/2077e0.pdf
    • http://flagshiplaw.net/uploads/1/3/0/5/130545087/7675269.pdf
    • http://mybaby3d.com.au/uploads/1/3/0/5/130588559/fubegatupoxasa-kukarul.pdf
    • http://privateinvitationmarijuanaparty.com/uploads/1/3/0/5/130588289/vonaluda.pdf
    • http://noreenhughes.com/uploads/1/3/0/5/130550980/fadeguv.pdf
    • http://www.seriecarousel.com/uploads/1/3/0/7/130775215/valazaxizitepudexite.pdf
    • http://inmanconstruction.org/uploads/1/3/0/5/130539348/130539348.html#aegon+religare+iterm+plan+premium

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f4b.bin
c64eb37107ea498c8d105fcee3c8ac87dcd9deea5a6ff4e42abac09ce0e2dc93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F4B 8068 bytes

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