Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a6dc2e494ef704b…

MALICIOUS

PDF

33.9 KB Authoring application: LibreOffice
MD5: a5df5ba57367353d8dd1272ee7eafb86 SHA-1: ab19b08eeca46b25c46f124206c0a3fce9cc6ea6 SHA-256: 3a6dc2e494ef704b53edb4c861e2c1842c161d5932b1f8384999a136b6ec5fae
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to other PDF files, a technique often used for SEO poisoning or to distribute malicious content. The document body text, though corrupted, mentions a fake offer for Adobe PDF reader, suggesting a phishing or social engineering lure. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' further supports a phishing or traffic redirection purpose.

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://paradigmcreativeworks.com/uploads/1/3/0/5/130539344/pomamuxig.pdf
    • http://puertoricandj.com/uploads/1/3/0/2/130291453/c58a0f850dff.pdf
    • http://tolas.org/uploads/1/3/0/5/130543945/5715663.pdf
    • http://evivatour.net/uploads/1/3/0/7/130739860/xosawifu.pdf
    • http://www.therapieparhypnose.com/uploads/1/3/0/6/130604327/5645656.pdf
    • http://rockyridgeacres.org/uploads/1/3/0/7/130739664/soporexel.pdf
    • http://mid-atlanticmountainworks.com/uploads/1/3/0/2/130289638/7347094.pdf
    • http://ebdoproperties.com/uploads/1/3/0/6/130639558/xusagasarorazod-watuwawewogu-gakawiro-xebugida.pdf
    • http://qeisolutions.com/uploads/1/3/0/4/130488574/4449483.pdf
    • http://fab-all.org/uploads/1/3/0/2/130289779/9278211.pdf
    • http://explosivebolt.com/uploads/1/3/0/7/130776847/4217652.pdf
    • http://dubaisolarcctv.com/uploads/1/3/0/6/130640059/9830956.pdf
    • http://www.fm-radio-transmitter.com/uploads/1/3/0/6/130639373/da0d1cd9.pdf
    • http://rbstrength.com/uploads/1/3/0/6/130621952/9835789.pdf
    • http://tamwaileongtwl.com/uploads/1/3/0/6/130603822/1f956.pdf
    • http://snmfineart.com/uploads/1/3/0/6/130639177/1920049.pdf
    • http://neighborhoodinvolve.org/uploads/1/3/0/4/130488732/pexefe_dexug.pdf
    • http://kauaimobilewellness.com/uploads/1/3/0/5/130551302/b18d1.pdf
    • http://casagallegaavenidas.com/uploads/1/3/0/6/130604962/jadisalaxavakanifen.pdf
    • http://whitcombhomeinspections.com/uploads/1/3/0/4/130489933/jifopenobod-vajuvota-muxewolokasup-vubav.pdf
    • http://mx.newlightmbchurch.org/uploads/1/3/0/3/130313090/fekevezogixibe.pdf
    • http://sthfromnth.com/uploads/1/3/0/6/130605263/66455054b3805.pdf
    • http://avurudu.egenuma.com/uploads/1/3/0/7/130740444/volotibava.pdf
    • http://www.sondrafinancialservicesllc.com/uploads/1/3/0/7/130775654/130775654.html#adobe+pdf+reader+application+free+download

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000211c.bin
85a4c77e3ac9be2bb39baed9c6d45bd9fab270ca25d8e997aa8cbe995e15dafa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x211C 8088 bytes

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