Malicious PDF — malware analysis report

Static analysis result for SHA-256 79af4c29e24904cd…

MALICIOUS

PDF

41.1 KB Authoring application: Scribus
MD5: e01cc7613c2d1a05bf1b8ad5d2664d51 SHA-1: 9bf073da6be9bb4582b0aa9005254ea864ca2fe4 SHA-256: 79af4c29e24904cd15fee3104acaede1a5cb7ab94b47bd7210dc5770e7bf8318
152 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. This suggests the primary purpose is to direct users to a network of other PDF files hosted on various domains. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent, likely related to phishing or traffic redirection. No scripts were extracted from this sample.

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://www.stellarorganizingsolutions.com/uploads/1/3/0/4/130483385/0ec828097.pdf
    • http://cpanel.kathybernat.com/uploads/1/3/0/5/130546354/guzelos.pdf
    • http://safekidskalamazoo.org/uploads/1/3/0/7/130776174/2905549.pdf
    • http://spquanxunwang3344111.br3h.com/uploads/1/3/0/7/130739007/vibijomodanago.pdf
    • http://thegaminghatch.com/uploads/1/3/0/7/130775440/8a94c188696296d.pdf
    • http://mobileboutiqueadriannemerkling.com/uploads/1/3/0/5/130543198/lukija.pdf
    • http://chicagonightlifepass.com/uploads/1/3/0/5/130588921/metefexazali.pdf
    • http://www.petzigzag.com/uploads/1/3/0/6/130604834/zoxoridiv_wofije_mamemepiteguxi.pdf
    • http://ryanmecheski.com/uploads/1/3/0/4/130436140/vasebepetozuf.pdf
    • http://legitedit.com/uploads/1/3/0/3/130312973/3350788.pdf
    • http://rivereasttravel.com/uploads/1/3/0/7/130739499/2431465.pdf
    • http://taxnotaryprestamos.com/uploads/1/3/0/4/130476940/8516718.pdf
    • http://www.secondpunicwar.com/uploads/1/3/0/6/130605292/pifud_rumelurap_lanodakaxelepan.pdf
    • http://thecatchoutdoors.com/uploads/1/3/1/0/131070926/8533066.pdf
    • http://2point7design.com/uploads/1/3/0/7/130740082/xokozedekoka.pdf
    • http://myhealthylifestyle.club/uploads/1/3/0/5/130589080/3065065.pdf
    • http://mta-sts.mx.healthyfoodsolano.org/uploads/1/3/0/6/130604286/bajogejugovizigeba.pdf
    • http://heatheremcfarlane.com/uploads/1/3/0/7/130775489/napulal_dusevozolibere.pdf
    • http://marlinjames.org/uploads/1/3/0/6/130639700/3783311.pdf
    • http://harmonyorganizingsolutions.com/uploads/1/3/0/7/130739431/b02583cc2.pdf
    • http://kmipropertieslimited.com/uploads/1/3/0/5/130589241/130589241.html#infeccion+por+chlamydia+trachomatis+tratamiento

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000040f4.bin
0b654aec972124520ab84c7c45b36e3e67f9b97ed15c86ed4d86983a9bd5cd0e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x40F4 8560 bytes

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