Malicious PDF — malware analysis report

Static analysis result for SHA-256 dda0fac3f10d3be6…

MALICIOUS

PDF

36.8 KB Authoring application: PDFBox
MD5: 1163e7adaa6ca67d0f3e0d1f239ac08f SHA-1: 1106f9151fe15eb27b67c02003bf83c3f497c64e SHA-256: dda0fac3f10d3be641ac0aa65f336cef16338935197f8fbccea8bd87a3dfee9e
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, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or phishing campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body is heavily obfuscated and truncated, preventing a detailed analysis of its specific 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://revestorexchange.com/uploads/1/3/0/7/130739122/tevomobivumu_tetiw_tuvawabex.pdf
    • http://mieldercarelaw.com/uploads/1/3/0/7/130776525/a68d622764f7d.pdf
    • http://silvabuildings.com/uploads/1/3/0/4/130483856/9763823.pdf
    • http://ballalae.com/uploads/1/3/0/4/130483550/wuluxonuzirivedomosa.pdf
    • http://hostmaster.localbusinesscharityawards.co.uk/uploads/1/3/0/5/130588574/nizide.pdf
    • http://motherstouchmedical.com/uploads/1/3/0/6/130620807/jatotawibiru.pdf
    • http://mrscarasclass.com/uploads/1/3/0/6/130621108/rifolijikax_wugufosoperav.pdf
    • http://ckfacials.com/uploads/1/3/0/3/130379316/bulafigawupazas-mogujoge-pugokagotoz-pugemotesujesa.pdf
    • http://ce-seniors.com/uploads/1/3/0/2/130289346/duwugu.pdf
    • http://psychotherapyportland.net/uploads/1/3/0/3/130324270/d97e52bf06294b3.pdf
    • http://theoxfordhouseofbeauty.com/uploads/1/3/0/2/130288533/nomeluvas_bususap_ziderikosituve.pdf
    • http://anaquin.org/uploads/1/3/0/6/130621890/5eb503cc8fb.pdf
    • http://newleaf-dayspa.com/uploads/1/3/0/6/130621226/d84ed1.pdf
    • http://changeyourquestionschangeyourlife.com/uploads/1/3/0/5/130589035/tufakiwedawudug-rudozudidaso-tagebunoretafa.pdf
    • http://molim.net/uploads/1/3/0/6/130639138/kujuvomaxe.pdf
    • http://www.technadts.com/uploads/1/3/0/7/130775052/tanibiniku-paragopu.pdf
    • http://gs0gp.bpmtc.com/uploads/1/3/0/5/130543874/130543874.html#cardiogenic+pulmonary+oedema+radiology
    • http://theoxfordhouseofbeauty.com/uploads/1/3/0/2/130288533/nomel

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000348d.bin
06b78945deb5cb158df5677440e6b593519a64d71bb84ae7e4124fbf012ad5c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x348D 7660 bytes

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