Malicious PDF — malware analysis report

Static analysis result for SHA-256 fda9d8af6335fbc6…

MALICIOUS

PDF

53.0 KB Authoring application: OpenOffice.org First seen: 2020-09-24
MD5: 9190c8d1de80470ac722445f68e305f6 SHA-1: f4bd3c59141f639116d1baeafa986d903a847f43 SHA-256: fda9d8af6335fbc68b52eb26e2e364e423130b714d20bfe5c127231a65cb51a9
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents, a technique commonly used for phishing or distributing further malware. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this behavior, pointing to domains like cataniainunclick.com. The ClamAV detection further supports the malicious classification. No scripts were extracted, and the document body content is heavily obfuscated and unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://cataniainunclick.com/uploads/1/3/0/6/130640029/sidafarob_mapexemozunipa_zomige_guxanezawesulor.pdf In PDF document text
    • http://successwithwilson.com/uploads/1/3/0/7/130738679/4335583.pdfIn PDF document text
    • http://kelsweet.com/uploads/1/3/0/3/130313582/8558677.pdfIn PDF document text
    • http://steephollowvet.com/uploads/1/3/0/6/130620603/1783763.pdfIn PDF document text
    • http://tkrealtysolutionssa.com/uploads/1/3/0/7/130775763/fonezumujonuror.pdfIn PDF document text
    • http://museofyourownmaking.com/uploads/1/3/0/7/130776695/rivudasarivafo_fubazuzaxeki.pdfIn PDF document text
    • http://ackertech.org/uploads/1/3/0/6/130604947/wavuvileju-xunewuzufo-xofanidakavejo.pdfIn PDF document text
    • http://aim-mississauga.org/uploads/1/3/0/6/130604877/d92ab6f11.pdfIn PDF document text
    • http://enduralyst.com/uploads/1/3/0/6/130639034/111079.pdfIn PDF document text
    • http://wallepikkers.nl/uploads/1/3/0/6/130620587/d0fd0955.pdfIn PDF document text
    • http://mx.parchmentvalley.org/uploads/1/3/0/7/130738738/95fe5cc616.pdfIn PDF document text
    • http://pvjv.com/uploads/1/3/0/6/130620670/1104190.pdfIn PDF document text
    • http://idonutcare.net/uploads/1/3/0/2/130272242/fakoluzexim_fanazigenogi_jewetilagog.pdfIn PDF document text
    • http://caddrafting.rediproject.com/uploads/1/3/0/4/130491488/1097456.pdfIn PDF document text
    • http://nicholascomm.com/uploads/1/3/0/6/130603737/nuteragawoxowago.pdfIn PDF document text
    • http://sabpermaculturegroup.com/uploads/1/3/0/6/130604153/newoluroguninozuxipi.pdfIn PDF document text
    • http://uxd66r.bdgct.com/uploads/1/3/0/9/130969916/130969916.html#jawahar+navodaya+vidyalaya+class+6+admission+form+2020In PDF document text
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
🗂 Part of campaign: pitwagner.com 4 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F5C 12536 bytes
SHA-256: a5cf15f5d99b002bd4f573dad87f54f0bff507c5cf7b63b3129f277766cd2e6b
font_01_sfnt_off00007304.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7304 8400 bytes
SHA-256: a548ac6dcd878eb85060c2207ff706f78ef020d1099b29d3324f2fd9afca7f06