Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb82fc250f5ddac5…

MALICIOUS

PDF

45.8 KB Authoring application: PDFedit
MD5: a5b5f2459ee9464f5e9f3fd8787dcdcb SHA-1: 6c3b49340e66bc0944feeae10e30db9efbb9a739 SHA-256: eb82fc250f5ddac5983009c93d86bc5f16112f71f8dab9c8385195565cc6c1ca
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to other PDF files hosted on various domains, indicating a link farm strategy. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly suggest malicious intent, likely related to phishing or traffic redirection. The document body, though partially corrupted, mentions learning English, which could be a lure.

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://pendletonpainting.com/uploads/1/3/0/6/130621853/8130d4.pdf
    • http://gr8waterinc.com/uploads/1/3/0/4/130476642/jiwolupi.pdf
    • http://holypostapp.com/uploads/1/3/0/3/130313405/9362211.pdf
    • http://ballalae.com/uploads/1/3/0/4/130483537/pojowobura_zizixi.pdf
    • http://modernjeetkunedo.com/uploads/1/3/0/5/130588606/kujaga.pdf
    • http://omnispeak.org/uploads/1/3/0/7/130739945/3401077.pdf
    • http://dominikkonsoloslugu.net/uploads/1/3/0/5/130589218/kokoruxomoko-mevufotazuf.pdf
    • http://drjeffbarone.com/uploads/1/3/0/3/130313157/naduwaje.pdf
    • http://sydneyft.com/uploads/1/3/0/4/130492689/80231351642a56.pdf
    • http://3dwear.ph/uploads/1/3/0/4/130436431/bufas-mizozakilo-gotasi-tuxesopinumop.pdf
    • http://bmigang.com/uploads/1/3/0/2/130270997/kizune-desosox.pdf
    • http://thefirsttimes.com/uploads/1/3/0/5/130588511/480a8.pdf
    • http://abrushwithnature.studio/uploads/1/3/0/5/130544437/8206753.pdf
    • http://amerineheatingandcooling.com/uploads/1/3/0/2/130289776/nopejon_xewir_gutewonusitakak.pdf
    • http://bilingualyellowpages.com/uploads/1/3/0/7/130775817/3918931.pdf
    • http://papermints.us/uploads/1/3/0/7/130776149/kimisulikuki_razijanud.pdf
    • http://coleinvestigations.com/uploads/1/3/0/6/130605190/biwetivofexip.pdf
    • http://faithlifetv.org/uploads/1/3/0/6/130639651/rojakazoborofi_safipifa_wekoxaruxiwu.pdf
    • http://www.sheffieldunicu.co.uk/uploads/1/3/0/3/130379062/6190358.pdf
    • http://keepupwiththekeys.com/uploads/1/3/0/5/130542718/sofisapafe.pdf
    • http://www.5thgradescienceiv.com/uploads/1/3/0/7/130739495/bc1e28838c06.pdf
    • http://cinderellascleaningcompany.com/uploads/1/3/0/7/130775949/130775949.html#how+to+learn+good+spoken+english+online

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005310.bin
614ed807f9875b267de9d74d12f52bbfcac3bcf92d0856c8b14ff0ed64f37417		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5310 8008 bytes

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