Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bde120149c5ccb2…

MALICIOUS

PDF

34.8 KB Authoring application: QPDF
MD5: d4cbf15096f31a154c97fd8b24984642 SHA-1: bb8d92a1eacfab7c487c6818833d4fd76fbedfd1 SHA-256: 7bde120149c5ccb2ba6d12dec4110910bfb25232ad13499f6aacd115ff42e7f7
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 commonly used in SEO poisoning and phishing campaigns to direct users to malicious sites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for distributing further malware or phishing content. No scripts were extracted from this sample.

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://towncarservicekirkland.com/uploads/1/3/0/6/130621315/wagojerise-nepikadutizu-fowarujajileme-wafazajafodu.pdf
    • http://pattayabeachproperty.com/uploads/1/3/0/5/130551164/lukum.pdf
    • http://gurudsdg.site/uploads/1/3/0/4/130476423/059908cbe9e44.pdf
    • http://parasport-news.com/uploads/1/3/0/4/130488934/vabumup.pdf
    • http://carrizalesforwarding.com/uploads/1/3/0/6/130604319/7551277.pdf
    • http://pdxpersonalinjury.com/uploads/1/3/0/8/130814586/9183578.pdf
    • http://drpattymain.com/uploads/1/3/0/2/130287281/jukokifipor_tizajeg.pdf
    • http://www.stylingcantaluppi.com/uploads/1/3/0/3/130323381/c75ea9731d98b4.pdf
    • http://mespinozamen.com/uploads/1/3/0/4/130435891/lakuvonexusepiz-kovadamuvuza-sujok-wazamitabogakox.pdf
    • http://tihder.com/uploads/1/3/0/7/130776888/5345115.pdf
    • http://survey.rodhillportraits.com/uploads/1/3/0/6/130639544/130639544.html#cheat+gta+san+andreas+vice+city+stories+psp+bahasa+indonesia

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003016.bin
c8aea7487e67bf33ce5ef9e5ad03e0fb06c6fc76fac25ad3da307d31d48294c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3016 8496 bytes

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