Malicious PDF — malware analysis report

Static analysis result for SHA-256 c363590172784498…

MALICIOUS

PDF

51.1 KB Authoring application: pstoedit
MD5: 6bc64658de8277ff12931c7c83ec3897 SHA-1: 685ca6845774e74640a3b04ca75d3cc68b6afbc4 SHA-256: c363590172784498c2c9fac903ca58e4eecb1977969a2c486940a66ec0c9540e
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files hosted across numerous domains. This technique, identified by the PDF_SEO_LINK_FARM heuristic, is often used for SEO manipulation or to distribute malicious content. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious classification. No scripts were extracted, and the document body content is heavily obfuscated and does not provide clear user-facing lures.

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://realmisterketo.com/uploads/1/3/0/2/130289379/timijifiwekek.pdf
    • http://mystreetstamp.com/uploads/1/3/0/3/130313379/gumefuluzolud.pdf
    • http://kosmokayla.com/uploads/1/3/0/5/130551239/zeviguvufi.pdf
    • http://luguimaraes.com/uploads/1/3/0/7/130775626/9403398.pdf
    • http://velaadventures.com/uploads/1/3/0/6/130621106/f191224a.pdf
    • http://yesbyronbay.com/uploads/1/3/0/5/130539348/7950917.pdf
    • http://morrowworldpost.com/uploads/1/3/0/6/130604580/borujifuw.pdf
    • http://nextbillionventures.com/uploads/1/3/0/5/130550982/32cfcedd59d9f.pdf
    • http://studiob.agency/uploads/1/3/0/3/130323409/4745949.pdf
    • http://cookielovecustomsugarcookies.com/uploads/1/3/0/5/130590321/gitoxakara.pdf
    • http://mysuccesstraining.com/uploads/1/3/0/4/130483645/kesavesa.pdf
    • http://valuetreecapital.com/uploads/1/3/0/5/130588807/413795.pdf
    • http://circusla.com/uploads/1/3/0/5/130588923/xowazeva.pdf
    • http://realmandrake.com/uploads/1/3/0/6/130621132/vamos-vatorirad-padij.pdf
    • http://www.realcoolsite.com/uploads/1/3/0/6/130620560/lawijupedaxa-zofumawifowatad.pdf
    • http://utilidrone.fr/uploads/1/3/0/8/130874269/26f866272594907.pdf
    • http://amysbargainoutlet.com/uploads/1/3/0/5/130545733/datujeguzanol.pdf
    • http://thecountryovenbakery.com/uploads/1/3/0/6/130621446/xuvedinesu.pdf
    • http://passporttolbi.net/uploads/1/3/0/6/130620945/f7171c51.pdf
    • http://host52.carmichaelnl.com/uploads/1/3/0/6/130603710/130603710.html#entamoeba+gingivalis+cyst+morphology

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000107e.bin
6c3364280cb3afc843eae36e1a33bad3d22b6c569a02b1a4139f7fe00f3bfdd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x107E 7880 bytes

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