Malicious PDF — malware analysis report

Static analysis result for SHA-256 20a7987c3ee10826…

MALICIOUS

PDF

66.3 KB Authoring application: OpenOffice Draw
MD5: 77f73e76986e2ae3addf3f2314fa7e92 SHA-1: 18df9e5494b8feea5cc4e2ef1dfb1d431b663404 SHA-256: 20a7987c3ee108269270598aa68e8c2c1016babd7fc76309e7d31e9c54d51b5c
128 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with 22 links pointing to other PDF files hosted on various domains. The heuristic 'PDF_SEO_LINK_FARM' and the ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' strongly indicate a phishing or malicious redirection campaign. The presence of a visual download button further supports the lure-based attack pattern.

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://tinyscrolls.com/uploads/1/3/0/2/130291036/2b8c0985fb320a.pdf
    • http://northernwellnesscoaching.com/uploads/1/3/0/4/130483194/0211b.pdf
    • http://designsbydeszel.com/uploads/1/3/0/4/130489228/9193073.pdf
    • http://nuezdejabon.site/uploads/1/3/0/6/130604536/d23c27d.pdf
    • http://iceforest.com/uploads/1/3/0/5/130539763/55320195.pdf
    • http://oliverapps.net/uploads/1/3/0/2/130270951/57cc1e44adbc.pdf
    • http://mutus.store/uploads/1/3/0/4/130492441/fomosujevozotav.pdf
    • http://www.scottwinrow.com/uploads/1/3/0/4/130435781/jokugapumenasab.pdf
    • http://alingsasgolvtjanst.se/uploads/1/3/0/8/130874451/8a14e44.pdf
    • http://behuninvocalstudio.com/uploads/1/3/0/4/130483542/3500866.pdf
    • http://www.allfrets2019.com/uploads/1/3/0/2/130292125/5870363.pdf
    • http://maeganprovan.com/uploads/1/3/0/2/130272557/130272557.html#affairscloud+january+2020+weekly+pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000028e6.bin
38c10af2077b74bea7afe4541c258ff629fd9e1854f20a0068c46c22c0da08d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28E6 8740 bytes
font_01_sfnt_off0000be49.bin
32b54217619f9438721b423dc2f4f4da0f78781b0811ea49af2be6b0310ecf56		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBE49 16164 bytes

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