Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5eb888a480e525d…

MALICIOUS

PDF

36.1 KB Authoring application: pdf-parser First seen: 2020-09-07
MD5: 7405e292cc3ce5bf9e8128f6f84e7f6a SHA-1: 4d57ecde21ab63f25e8b9ce81d2ec15095b42aab SHA-256: d5eb888a480e525d86036d0cec03d34bbc116153228bc3cb9c786f896ef8e913
192 Risk Score

Malware Insights

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

The PDF contains a link farm of 31 external PDF links, indicating a phishing or malware distribution attempt. The document body text explicitly prompts the user to 'Download foxit reader' and includes numerous URLs pointing to other PDF files, suggesting a lure to download malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing classification.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://sanfordradio.com/uploads/1/3/0/5/130590096/1042266.pdf In PDF document text
    • http://www.mcmenamingolf.com/uploads/1/3/0/3/130324126/a58c8881fd.pdfIn PDF document text
    • http://cjmacdoug.com/uploads/1/3/0/3/130324164/dasaresuvidetapijibe.pdfIn PDF document text
    • http://portalfinanciero.net/uploads/1/3/0/6/130620861/2267163.pdfIn PDF document text
    • http://susiesbistroandbakery.com/uploads/1/3/0/5/130590305/nimope.pdfIn PDF document text
    • http://davidmunoz.org/uploads/1/3/0/7/130776790/gexigatiwopulis-puwifakuzerug-xatubazerufad.pdfIn PDF document text
    • http://sbnewstv.com/uploads/1/3/0/7/130776263/vozevaxakilul_datogo_sanuj_veforewar.pdfIn PDF document text
    • http://vegefullvybez.com/uploads/1/3/0/7/130740164/2723659.pdfIn PDF document text
    • http://fisco24.com/uploads/1/3/0/6/130605422/4943166.pdfIn PDF document text
    • http://tannerlowe.com/uploads/1/3/0/4/130476481/173170.pdfIn PDF document text
    • http://truedefinitiondentallaboratory.com/uploads/1/3/0/6/130604497/wevewafu.pdfIn PDF document text
    • http://beastedart.com/uploads/1/3/0/6/130639712/jugogodagumosura.pdfIn PDF document text
    • http://gaydisaster.net/uploads/1/3/0/3/130324288/9427597.pdfIn PDF document text
    • http://alicescalfi.com/uploads/1/3/0/2/130289789/nirifa_domotitirore_nufap.pdfIn PDF document text
    • http://mx.hparealestate.com/uploads/1/3/0/7/130775192/7248843.pdfIn PDF document text
    • http://community-band.com/uploads/1/3/0/2/130288589/zigogurodilinun.pdfIn PDF document text
    • http://www.financialvaluers.com/uploads/1/3/0/2/130288534/tiwiridijulajixoma.pdfIn PDF document text
    • http://c75er.slpny.com/uploads/1/3/0/7/130775607/130775607.html#download+foxit+readerIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E45 8696 bytes
SHA-256: 419d8641cc71ea038ef04a858644cea075c00b42c5866b786ae477890ab4ee18