Malicious PDF — malware analysis report

Static analysis result for SHA-256 9267636baee60478…

MALICIOUS

PDF

46.0 KB Authoring application: Smallpdf Desktop First seen: 2020-09-24
MD5: d6097b3d7ad4c897f6a3095d7cfe45c6 SHA-1: b055b6220a9ce14624aa213572b7012670521904 SHA-256: 9267636baee604781bf4609c6c14f279a6912086ceabd701f9af4fa2b4226214
152 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 as a link farm, which is a common technique for distributing malicious content or conducting phishing attacks. The ClamAV detection and ML classifier strongly indicate malicious intent. The embedded URLs likely lead to further stages of the attack, such as downloading additional payloads or redirecting to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://thatclassiccarshow.com/uploads/1/3/0/2/130274146/resolutowud.pdf In PDF document text
    • http://moses-michael.com/uploads/1/3/0/5/130547150/6495710.pdfIn PDF document text
    • http://mycgexpress.com/uploads/1/3/0/3/130313400/59ef6f468.pdfIn PDF document text
    • http://gregsgear.com/uploads/1/3/0/5/130550940/6e6ac.pdfIn PDF document text
    • http://blocktekholdings.com/uploads/1/3/0/7/130776413/7902776.pdfIn PDF document text
    • http://downforacure.org/uploads/1/3/0/4/130477775/xurudanesozawa.pdfIn PDF document text
    • http://neurogastrolab.com/uploads/1/3/0/7/130775386/3d18687b19cae2.pdfIn PDF document text
    • http://newyorkdiamondbling.com/uploads/1/3/0/4/130476183/bomerutube_vetofunim_tubibep_nawupobex.pdfIn PDF document text
    • http://nurseryrhymedesign.com/uploads/1/3/0/7/130739211/2033933.pdfIn PDF document text
    • http://nadiafarah.com/uploads/1/3/0/2/130273788/gewumuxodo_wezupul_napedimafojeje_gabafixufuvuzex.pdfIn PDF document text
    • http://www.oiledforlife.org/uploads/1/3/0/7/130739488/9977108.pdfIn PDF document text
    • http://boringporn.com/uploads/1/3/0/3/130313582/5b46087a8a5b.pdfIn PDF document text
    • http://motovillaitalia.net/uploads/1/3/0/6/130620423/fovadufibagugezino.pdfIn PDF document text
    • http://nivafoundation.com/uploads/1/3/0/7/130739853/vojugopepefebuvu.pdfIn PDF document text
    • http://sunscar.net/uploads/1/3/0/6/130639801/lopuwotewa.pdfIn PDF document text
    • http://stunningsphynxkitten.com/uploads/1/3/0/7/130776125/9282743.pdfIn PDF document text
    • http://mindbody-solutions.net/uploads/1/3/0/8/130814421/powujaresoko.pdfIn PDF document text
    • http://meridenoilcompany.com/uploads/1/3/0/5/130538869/b982ee23b1aa1d.pdfIn PDF document text
    • http://natashawheinz.com/uploads/1/3/0/7/130738896/5976258.pdfIn PDF document text
    • http://southamericasflowers.com/uploads/1/3/0/7/130775107/fazotogipidunixabixo.pdfIn PDF document text
    • http://twinflamerunner.com/uploads/1/3/0/6/130620340/eedb9a165e95b.pdfIn PDF document text
    • http://dominikakonsoloslugu.net/uploads/1/3/0/5/130551091/kenegej.pdfIn PDF document text
    • http://oakleafcraftshop.com/uploads/1/3/0/5/130588540/c984124bf6c5e.pdfIn PDF document text
    • http://kkyulekaihu.br3h.com/uploads/1/3/0/7/130739761/130739761.html#macbeth+short+summary+act+1In PDF document text
🗂 Part of campaign: chaliceoakfoundation.org 4 samples

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000051f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51F3 8096 bytes
SHA-256: 193ae74351a8f6db88b0c0cb55d99038759930b73bdb26ef08c0640ef699df98