Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c3071792437c668…

MALICIOUS

PDF

32.7 KB Authoring application: OpenOffice.org
MD5: 09d93a2059065052a089d9f4d48e3d89 SHA-1: a75716ca3861e1d88a610b96aa6ecd8b6239ab6e SHA-256: 8c3071792437c668d91008541649a3181590e8b22fe84fc0e85692d7e94ba42b
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 external PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, aligning with the PDF_SEO_LINK_FARM heuristic.

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://surprisedbylifeebook.com/uploads/1/3/0/5/130551267/60f4beade4547.pdf
    • http://z3techsolutions.com/uploads/1/3/0/6/130639489/dapugurufivilo-gimusex-jidezugevike-rinirig.pdf
    • http://www.exmouthcaninecentre.com/uploads/1/3/0/8/130874150/reguwi.pdf
    • http://mightyboofpromotions.com/uploads/1/3/0/2/130289550/4666750.pdf
    • http://nswkartshop.com/uploads/1/3/0/4/130483565/maxakanu-bojosip-bupexugegut.pdf
    • http://aniascards.com/uploads/1/3/0/5/130589078/4268029.pdf
    • http://wembleyparkmontessori.com/uploads/1/3/0/4/130476262/jepagiga.pdf
    • http://bdibuttdialinterrupt.com/uploads/1/3/0/6/130621142/a5487bbf3eb0a.pdf
    • http://poetrycult.com/uploads/1/3/0/4/130483096/1c432f41d074.pdf
    • http://smakliving.com/uploads/1/3/0/5/130588635/borotebegudo.pdf
    • http://bsp500.org/uploads/1/3/0/7/130738889/7575445.pdf
    • http://noahopper.com/uploads/1/3/0/5/130550956/250161.pdf
    • http://clogdancing.tv/uploads/1/3/0/8/130813466/2665047.pdf
    • http://eyecandylashesbbllc.com/uploads/1/3/0/8/130813357/korijarupu.pdf
    • http://rose-from-concrete.com/uploads/1/3/0/7/130775837/wizuwav-jigibibifilimu-govofebem.pdf
    • http://pilgrimpowerplant.com/uploads/1/3/0/2/130271121/rofaxenenone_kesuzu_rikaluto.pdf
    • http://oatbardicschool.org/uploads/1/3/0/5/130588388/kerixe.pdf
    • http://jennyhartzler.com/uploads/1/3/0/5/130551576/lonuxilodixakusa.pdf
    • http://azurbanluxury.com/uploads/1/3/0/8/130815213/bewudajewu_jexejolifiram.pdf
    • http://lmi7fs.salon225.com/uploads/1/3/0/6/130620746/130620746.html#adverbs+worksheets+pdf+with+answers+for+grade+2

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002297.bin
40b981a4d68a12ba0d68933d170ecd5fc02701468f5b3e8f7139078e65d51fcd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2297 7248 bytes

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