Malicious PDF — malware analysis report

Static analysis result for SHA-256 514384e0930aafc8…

MALICIOUS

PDF

92.0 KB Authoring application: Mobipocket Creator
MD5: 7035da4c95f1da1d652674b2bfbd08d6 SHA-1: 8de7e00271747b4d187d1a7e527d303ae4f4ee63 SHA-256: 514384e0930aafc8e9906d2023b286729cf05f29870adb37530db25f49ff32b9
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a significant number of external links to other PDF files, identified as a 'PDF_SEO_LINK_FARM'. This suggests a tactic to manipulate search engine results or to distribute malicious content through a network of sites. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious distribution intent. No scripts were extracted, and the document body was heavily obfuscated, limiting direct analysis of user-facing lures.

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
  • 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
  • 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://xeve.koshkanusya.com/uploads/2020/01/28/5b4618d.pdf
    • http://starlightbooklets.com/uploads/1/3/0/6/130640190/d3632a7c8.pdf
    • http://ucccm.com/uploads/1/3/0/5/130551174/aefadffbf26.pdf
    • http://myazulwedding.com/uploads/1/3/0/6/130640066/9109289.pdf
    • http://mohammedalraisart.com/uploads/1/3/0/2/130272918/4649b893fb.pdf
    • http://bankheadboys.com/uploads/1/3/0/5/130588203/nulup.pdf
    • http://misssoutheastpageantry.us/uploads/1/3/0/6/130639407/130639407.html#bee+er+app+2015

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012de.bin
78597fc8c6d06d2a5a2f66921fe155256111f53d220887b5c96c7b77f023c6b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12DE 9204 bytes
font_01_sfnt_off0000779f.bin
68317e624a698ed6c4789c76e3e1441b12637186a6b7f3f1d8cfb6ab37af2bdf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x779F 17716 bytes
font_02_sfnt_off00012da7.bin
7ac8759f6f71c33f8f5bad5d2fe86e28dd137252f4eb086882e54a8c447c5691		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12DA7 2884 bytes

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