Malicious PDF — malware analysis report

Static analysis result for SHA-256 d83a6439a7536268…

MALICIOUS

PDF

42.9 KB Authoring application: SWFTools
MD5: 438cb436bd199bfa869037b85e374bb0 SHA-1: 827a3784b9dd233cc2c5100566fe1b4a54b41001 SHA-256: d83a6439a753626827de30f2b06ba0fc87d607176813b57029292ce82ec3a83d
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or malicious redirection intent. The document body, though heavily obfuscated, contains references to accounting information and includes numerous URLs pointing to other PDF files, suggesting a coordinated effort to distribute malicious content.

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://commandlineidiot.com/uploads/1/3/0/4/130493248/badovexosum.pdf
    • http://spiritualstylist.com/uploads/1/3/0/6/130639712/kivuxobened.pdf
    • http://mommieceoapparel.com/uploads/1/3/0/4/130483509/987427e677f3.pdf
    • http://icgauthbanquepoportail.net/uploads/2020/01/28/gepazigen.pdf
    • http://napervillespa.net/uploads/1/3/0/6/130621485/df32e159.pdf
    • http://1-to-6.com/uploads/1/3/0/5/130543511/bexixixipi_mogudodikagib_kegurim.pdf
    • http://nodoubthomeinspection.com/uploads/1/3/0/3/130379314/buxej.pdf
    • http://insidersport.info/uploads/2020/01/28/ruvovevesi-xarepegeta.pdf
    • http://alphachiomegaofoaklandcounty.org/uploads/1/3/0/4/130488251/7758653.pdf
    • http://cleverk9sports.com/uploads/1/3/0/6/130605447/5603362.pdf
    • http://proteus-internetmarketing.com/uploads/1/3/0/4/130483761/caa0cb543.pdf
    • http://camelcottage.com/uploads/1/3/0/3/130313657/7493798.pdf
    • http://drpatty.net/uploads/1/3/0/6/130620633/130620633.html#accounting+information+systems+questions+and+answers+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000137e.bin
f3f9063b97c72e04c439956a4c031cb04f161adb3fc2da19962c64fcfa24c0ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x137E 8784 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.