Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d98c2b243a5e600…

MALICIOUS

PDF

45.2 KB Authoring application: LibreOffice Draw
MD5: a737f1eb1f7684cdf0652cc215fe32b0 SHA-1: 1db0975e2aaeead5b72f482743efdf73524452d4 SHA-256: 5d98c2b243a5e6001e2b87ae2686b7f06c6c74fda5b968c1e9f2ec209c52bec3
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded external links, a technique often used for SEO manipulation or to redirect users to malicious sites. ClamAV detected this as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', indicating a phishing or traffic redirection purpose. While no scripts were explicitly extracted, the heuristic firings strongly suggest a malicious intent to distribute or redirect to other malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://brainstormembroidery.com/uploads/1/3/0/6/130604626/0d4dc556e.pdf
    • http://chrisminamyer.com/uploads/1/3/0/2/130291658/bajelovifewuvenelo.pdf
    • http://ndsucceed.com/uploads/1/3/0/2/130274263/491d35.pdf
    • http://backinbalanceequine.com/uploads/1/3/0/8/130874123/linutifafoz_bapamudize.pdf
    • http://svtcconnect.org/uploads/1/3/0/3/130379380/nuwojopebenom.pdf
    • http://cpanel.theleantrainer.co.uk/uploads/1/3/0/7/130776517/xuzemasiju.pdf
    • http://baarleproeft.com/uploads/1/3/0/4/130483856/9985836.pdf
    • http://onlinemobiletrainer.com/uploads/1/3/0/5/130588843/lewafedimaxat.pdf
    • http://applepickndays.com/uploads/1/3/0/6/130604288/5841f.pdf
    • http://lubatales.com/uploads/1/3/0/7/130740444/panuxuluwitox.pdf
    • http://www.howgills.net/uploads/1/3/0/7/130739067/zaziwajusokefad.pdf
    • http://infocule.org/uploads/1/3/0/8/130814633/d99317453.pdf
    • http://ericamcquiddypsyd.com/uploads/1/3/0/7/130738769/9110836.pdf
    • http://www.arc-railroad.com/uploads/1/3/0/5/130547116/a9c1658783.pdf
    • http://www.theoillife.shop/uploads/1/3/0/6/130621997/0ba9b6.pdf
    • http://bobgruber.com/uploads/1/3/0/7/130739553/foxaxomoxoz-vajenilimaxa-fewimagejekum.pdf
    • http://www.ahmawanphotos.com/uploads/1/3/0/6/130621353/falidepu.pdf
    • http://www.alltalentmatter.org/uploads/1/3/0/4/130476130/4bca2fba7bf1348.pdf
    • http://cpanel.beachgallery.com/uploads/1/3/0/9/130969853/c5a36b8f9bfcf.pdf
    • http://trevordewitt.me/uploads/1/3/0/5/130551212/5539893.pdf
    • http://www.fbpw-southsudan.org/uploads/1/3/0/5/130588813/wagor.pdf
    • http://ragnarlegend.com/uploads/1/3/0/7/130776147/jidimimenutap_suderaxakipane.pdf
    • http://www.flippedaroundphysics.co.uk/uploads/1/3/0/4/130489159/kupow.pdf
    • http://www.smacolab.com/uploads/1/3/0/6/130639335/130639335.html#asia+spinal+cord+motor+exam
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000374d.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63
pdf-font-stream PDF embedded font (sfnt) at offset 0x374D 16036 bytes
font_01_sfnt_off00004e67.bin
bce99462ed7d83fb08ce25a1d38f0e59bd266172614726bb6925192c48fdd5c7
pdf-font-stream PDF embedded font (sfnt) at offset 0x4E67 7932 bytes