Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f0dc9960e323d50…

MALICIOUS

PDF

49.2 KB Authoring application: Scribus
MD5: 6c90e75f34549fec57d3107b0171f2a0 SHA-1: 34570d96832218fc5ae74a1574bdfd2564373b22 SHA-256: 0f0dc9960e323d50aeef2b7e3063b010ed0d7d9dd2fe295281769430d196cea0
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to other PDF files, indicating a link farm or a distribution mechanism for further content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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
  • 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://nelsonfirm.com/uploads/1/3/0/2/130288394/84c685c4.pdf
    • http://mojavechamber.org/uploads/1/3/0/3/130324236/sabenobulejax-vawojisupa-dozes-sopelofeko.pdf
    • http://sunnyonthemic.com/uploads/1/3/0/6/130639648/rowaxukapux_basaxokuf.pdf
    • http://bicepsandbananas.com/uploads/1/3/0/3/130313649/6ece8.pdf
    • http://trillionhairecollection.co/uploads/1/3/0/3/130379210/kadul.pdf
    • http://theravensthree.com/uploads/1/3/0/3/130313319/8220314.pdf
    • http://alsupmusic.com/uploads/1/3/0/2/130270904/monutujovuvi_jerizakewoxa_voxuvipiviwugi.pdf
    • http://cwegcommunity.org/uploads/1/3/0/4/130483748/e225a890b.pdf
    • http://jeanstandmeministries.com/uploads/1/3/0/2/130270904/2011d4b2786810.pdf
    • http://gor.feierverkspb.ru/uploads/2020/01/28/9244049.pdf
    • http://pathblazer.org/uploads/1/3/0/6/130604258/8156864.pdf
    • http://tetiana.net/uploads/1/3/0/6/130621349/jatigabo-kuvevudefaj-dezexav.pdf
    • http://productdesigntools.com/uploads/1/3/0/3/130379740/59e479017c.pdf
    • http://davidmarquesibanez.com/uploads/1/3/0/2/130274349/130274349.html#stabat+mater+dolorosa+jacopone+da+todi
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001464.bin
87526f41aa07209a64f597f53333d86c208218e9048b61cbedbf777b97d83ff0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1464 10160 bytes
font_01_sfnt_off0000796f.bin
684a4fedbe8324165d861f219ee6753fc2e47e58a3bb7ab6c3bed7578cca1b10		 pdf-font-stream PDF embedded font (sfnt) at offset 0x796F 16200 bytes

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