Malicious PDF — malware analysis report

Static analysis result for SHA-256 7103bdbb7dd260c2…

MALICIOUS

PDF

36.5 KB Authoring application: Nitro PDF
MD5: f9970c5c122a4a4f1fab4f929cb4b4d4 SHA-1: 985482ebbaa2eed6baedab5a87c9066977cd3a50 SHA-256: 7103bdbb7dd260c224aa04afae218e8fc7b038ecc94724b87a4ef2d4cd4a2250
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection and ML classifier strongly indicate maliciousness, with the embedded URLs likely serving as a lure or part of a link farm for SEO manipulation. No scripts were extracted from this sample, but the sheer volume of external links suggests an attempt to redirect users to potentially malicious content or to manipulate search engine rankings.

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://ecogourmande.com/uploads/1/3/0/5/130550898/58e73.pdf
    • http://theforgottenkids.com/uploads/1/3/0/8/130815080/4749982.pdf
    • http://sanditaplantita.com/uploads/1/3/0/8/130873820/4007036.pdf
    • http://jingleexpert.com/uploads/1/3/0/6/130603995/xojidezimuso-xuponasu-jumevoxuri.pdf
    • http://chloedaniellewhite.com/uploads/1/3/0/2/130270832/3124937a82.pdf
    • http://visitblackberrycreek.com/uploads/1/3/0/4/130488410/kuzojozob.pdf
    • http://beatbunkr.com/uploads/1/3/0/7/130775447/9c93fc5833.pdf
    • http://mynaturalplace.com/uploads/1/3/0/2/130289523/dukik.pdf
    • http://tonyvu.io/uploads/1/3/0/7/130740378/9714026.pdf
    • http://mpsi-yar.ru/uploads/1/3/0/4/130490053/3698537.pdf
    • http://suertes13optica.com/uploads/1/3/0/5/130539355/3ce5e4.pdf
    • http://beatdiabetesnow.org/uploads/1/3/0/8/130873983/debuwarofolobo-xezegolidodo-kixigefemaveza-gunano.pdf
    • http://mindtoys.net/uploads/1/3/0/4/130436242/0f9e47.pdf
    • http://winorlosesportsconference.com/uploads/1/3/0/2/130273617/3900810.pdf
    • http://promisewed.com/uploads/1/3/0/7/130775258/kebawije_baritexisi.pdf
    • http://rodiermail.com/uploads/1/3/0/7/130775109/1704020.pdf
    • http://mountain-ammo.com/uploads/1/3/0/4/130488345/2634497.pdf
    • http://mylivgrace.com/uploads/1/3/0/7/130739746/f1c8bb8.pdf
    • http://homeric-cards.com/uploads/1/3/0/6/130604685/b012e279.pdf
    • http://www.duncangreenbank.org/uploads/1/3/0/2/130271048/7f6b476.pdf
    • http://xintaiyangchengshoucunyouhui.br3h.com/uploads/1/3/0/6/130621191/130621191.html#bob+seger+against+the+wind+piano+sheet+music

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ce2.bin
c76658fb5e608296055368f00644dfa040e5f2e3d5a4a39fad3449d8807c9a0d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE2 8636 bytes

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