Malicious PDF — malware analysis report

Static analysis result for SHA-256 29836a838a764d9a…

MALICIOUS

PDF

42.4 KB Authoring application: OpenOffice.org
MD5: dd06edbedda41985d1df935c2ec5ef5a SHA-1: adbdc830beb1849335e750e31d1bb0da227ec5f0 SHA-256: 29836a838a764d9ace83db8ac60f7532eaf7dd392ad5bff696772b3fba2fafdb
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, a technique often used for SEO poisoning or to redirect users to malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly indicate malicious intent. The embedded URLs are likely part of this redirection scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://rickydemedeiros.com/uploads/1/3/0/3/130379132/moxurokenom-zilibidovejez.pdf
    • http://www.unhinderedevent.com/uploads/1/3/0/9/130969470/vugizika.pdf
    • http://peaksmobile.com/uploads/1/3/0/5/130589198/9502755.pdf
    • http://massage-hypnotherapy-nlp.com/uploads/1/3/0/8/130874480/lugozilefowif-lujitelexu-bibogob.pdf
    • http://oaktreephotos.com/uploads/1/3/0/2/130291555/mabugim.pdf
    • http://azzurraweb.net/uploads/1/3/0/5/130550778/geguredovolu_tugamibiveza_roluwezitukubas_jisigepulemake.pdf
    • http://celebratinggodscreation.org/uploads/1/3/0/4/130435598/tuxaxavila-nabigo-dixisuv.pdf
    • http://www.funkywebsitedesigns.co.uk/uploads/1/3/0/2/130289676/pigararajetibodetun.pdf
    • http://bnbgourou.net/uploads/1/3/0/2/130287866/2317261.pdf
    • http://nowigetit.net/uploads/1/3/0/4/130489240/6222487.pdf
    • http://w6lo6.bpmtc.com/uploads/1/3/0/2/130287472/nawajirozalubib_zamimuge_tufigegifenimob_nupoxupirurane.pdf
    • http://brokeitguy.com/uploads/1/3/0/8/130813616/fbeed5ae187.pdf
    • http://atlantabasementwaterproofingco.com/uploads/1/3/0/5/130590058/d763498d.pdf
    • http://moksamassage.com/uploads/1/3/0/7/130775186/durosuvebebopeb-sifofujafika.pdf
    • http://nkz.brdge.org/uploads/1/3/0/4/130488615/130488615.html#possessive+adjectives+ve+pronouns+konu+anlat%C4%B1m%C4%B1
    • http://celebratinggodscreation.org/upload

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003cd1.bin
90182e258c4a044c2ca334b17af6b9175e87237a1e81544cc1f8f4ce5fb5eaf9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3CD1 2684 bytes
font_01_sfnt_off00004955.bin
f8a5f8975af0266c23ab2195f75ffa04d7801326bb5a8b1717763ffbc0d61885		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4955 9540 bytes

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