Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a6a1998188ebede…

MALICIOUS

PDF

35.3 KB Authoring application: Serif PagePlus
MD5: 03c38859ed481b27a19154ffac2e42a7 SHA-1: cce6a91394a235a4b819a59c46c9cabbe7ee35f7 SHA-256: 3a6a1998188ebede65d7111461e3e0fec6856a4238ff9a0f7d60fd0a24c972a0
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics, including ClamAV and a machine learning classifier, indicating malicious intent. The PDF_SEO_LINK_FARM heuristic identified a mass external link farm pointing to numerous PDF files hosted on various domains. This suggests the document is designed to act as a lure, directing users to potentially malicious content or phishing sites. No scripts were extracted from this sample.

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://automatedsalesrocket.com/uploads/1/3/0/6/130639221/jupemezelowimegaf.pdf
    • http://resurrectionofarunner.com/uploads/1/3/0/7/130775921/1772507.pdf
    • http://faceiso.org/uploads/1/3/0/6/130604145/cd22a9f56104.pdf
    • http://donovankleintv.com/uploads/1/3/0/2/130271237/vanokilosib.pdf
    • http://mercadohuanacaxtle.com/uploads/1/3/0/7/130776449/7312300.pdf
    • http://montessorimentor.org/uploads/1/3/0/5/130588415/cf650.pdf
    • http://andyharrisasblacksheep.com/uploads/1/3/0/4/130435573/nexevubolovadid.pdf
    • http://www.lifeinthedadlane.com/uploads/1/3/0/6/130620710/4cdd0b81d.pdf
    • http://walkerlessons.com/uploads/1/3/0/7/130775018/sawokok-banesupaz.pdf
    • http://prophits.net/uploads/1/3/0/7/130740200/632691.pdf
    • http://michaelshusko.com/uploads/1/3/0/7/130739116/jasazawaliwemoret.pdf
    • http://agirlfromodisha.com/uploads/1/3/0/7/130775627/tozevakofatu.pdf
    • http://laketravischeerleading.com/uploads/1/3/0/8/130814873/20eb88dc038ed39.pdf
    • http://missiontofarm.net/uploads/1/3/0/7/130739535/9061201.pdf
    • http://merakiofferings.com/uploads/1/3/0/6/130621342/fc9fad5f8a.pdf
    • http://74-123-76-134.mgwnet.com/uploads/1/3/0/3/130379252/130379252.html#convert+doc+to+pdf+in+java+using+itext
    • http://michaelshusko.com/uploads/1/3/0/7/130739116/jasazawaliwemoret.pd

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002c9a.bin
ebb8a73af6266a6f818f76e091625a39a90aa05d77c1f0941be6a8116bda88ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C9A 8832 bytes

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