Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8341df9fc4ae216…

MALICIOUS

PDF

57.3 KB Authoring application: pstoedit
MD5: aa678dfe7238d56f6e266ef03fd65ccc SHA-1: 6c30afc124368ad6f44be213313bd8d0bb28a64f SHA-256: d8341df9fc4ae216dd0ef06cdbead0c17dc851a4b303fef22eca05360ddff9f7
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, pointing to external PDF files. This indicates a likely attempt to manipulate search engine results or redirect users to malicious content. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or traffic-driving intent.

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://morelopostfilms.com/uploads/1/3/0/5/130588830/bilonoli_rupewipo_fijuvuj_xivamajofut.pdf
    • http://aandygroup.com/uploads/1/3/0/6/130639851/c5c29ef3d6e88.pdf
    • http://dragonflyphotographyceramics.com/uploads/1/3/0/2/130271103/muzowerisolo-zorotajox.pdf
    • http://swctoa.com/uploads/1/3/0/7/130776273/widojodotodum.pdf
    • http://sennad.store/uploads/1/3/0/7/130740140/370753.pdf
    • http://muleartist.com/uploads/1/3/0/4/130477310/jewixavokigemi.pdf
    • http://msestate.co.jp/uploads/1/3/0/5/130590168/3395621.pdf
    • http://redondobeachheating.net/uploads/1/3/0/4/130490786/327d45ea2.pdf
    • http://rachelreding.net/uploads/1/3/0/7/130739835/10078.pdf
    • http://tracktastic.com/uploads/1/3/0/6/130639308/696ed8.pdf
    • http://getfueledforlife.com/uploads/1/3/0/5/130547613/84e05dec40.pdf
    • http://migromarine.com/uploads/1/3/0/6/130639495/506137b9e57.pdf
    • http://myresortwear.net/uploads/1/3/0/6/130621353/876093.pdf
    • http://sevencedarsdesign.com/uploads/1/3/0/5/130540282/rikodinuzajoj.pdf
    • http://nationalfootballcheerleadersalumni.org/uploads/1/3/0/4/130476605/130476605.html#atomic+absorption+spectroscopy+use

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000121a.bin
e6d32e3750e3e6ccf31731f636759a5d2097896f313d9d94f66ed40eaae5e321		 pdf-font-stream PDF embedded font (sfnt) at offset 0x121A 8772 bytes
font_01_sfnt_off00009f61.bin
dc796821fb09875115b308215788e2543399f03e6eaeb6e7541ad0725eed1faa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F61 3052 bytes

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