Malicious PDF — malware analysis report

Static analysis result for SHA-256 d354d968259ae4bb…

MALICIOUS

PDF

38.4 KB Authoring application: Mobipocket Creator
MD5: d64d4a5b22731dd9cded522ee834edc4 SHA-1: 562e6f2c2d0fc54ebfa2a6c933dfe407ff414056 SHA-256: d354d968259ae4bb93eca098af4bc9677eb5388b995ad490e55a9d75888a8b73
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or redirection tactic. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier's high confidence score further support malicious intent. The document body, though partially corrupted, mentions 'Acupuncture points for head cold' and prompts a download, aligning with a phishing or traffic-driving lure.

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://availabletenniscourts.com/uploads/1/3/0/8/130814209/fezubago.pdf
    • http://barnfreshcycles.com/uploads/1/3/0/6/130604729/mijatujowuwojevi.pdf
    • http://powerfulwomenofgod.org/uploads/1/3/0/6/130604805/tuwano_sobufutoki_duxoxameroke_xovusupux.pdf
    • http://kabariintegratedwellness.com/uploads/1/3/0/5/130588931/e7df991f56e1411.pdf
    • http://theanointedhandsofpraise.com/uploads/1/3/0/8/130874015/wanaz.pdf
    • http://imperium-guild.com/uploads/1/3/0/4/130489725/7091053.pdf
    • http://treetopreptile.com/uploads/1/3/0/5/130539926/valizowurumilaparoza.pdf
    • http://eudaimoniatravelblog.com/uploads/1/3/0/5/130550742/rimaposokirafu-xotolubajuzas.pdf
    • http://humanismandculture.com/uploads/1/3/0/7/130739080/4227143.pdf
    • http://newyorklifeinsuranceattorney.com/uploads/1/3/0/5/130543945/wuturaruroza-wozojexexegi.pdf
    • http://alexandraresmerita.eu/uploads/1/3/0/3/130313081/nuzab.pdf
    • http://creditfromhome.com/uploads/1/3/0/4/130483617/1146221.pdf
    • http://fightyourfriends.us/uploads/1/3/0/6/130639903/renuratob.pdf
    • http://wit-ism.com/uploads/1/3/0/6/130603731/siweligog.pdf
    • http://biding-my-time.com/uploads/1/3/0/2/130289380/1853672.pdf
    • http://ebmccallanbuildingltd.com/uploads/1/3/0/4/130476496/130476496.html#acupuncture+points+for+head+cold

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003ae0.bin
181c01c850e39d1c80f284293a9888eea80d612fec81250ea97efadad5339aa7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3AE0 8072 bytes

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