Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a1bef9977f74092…

MALICIOUS

PDF

53.7 KB Authoring application: PDFBox
MD5: 4e0bd8d4f50fe527e9f6f5c1853cb7aa SHA-1: 0aacc21f541660bd2d66fb2a945cdf724fec293a SHA-256: 7a1bef9977f740921473612b40add31c2a64929174da4eb3da847c23cc2dc843
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, which is a common technique for distributing malware or directing users to phishing sites. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the embedded URLs are the primary indicators of compromise, likely leading to a second-stage download or redirection.

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://youngmenofrespect.org/uploads/1/3/0/4/130490928/wizijededi-gowomajag-rukuw.pdf
    • http://powergeardrums.com/uploads/1/3/0/2/130270974/bazoxedejosepefuguv.pdf
    • http://uophilosophy.com/uploads/1/3/0/5/130542971/3474373.pdf
    • http://www.tayloreportfolio.com/uploads/1/3/0/9/130968968/35e3be8.pdf
    • http://michellepetersjones.com/uploads/1/3/0/5/130540767/lutuzurudetivuko.pdf
    • http://www.lynnslavender.net/uploads/1/3/0/4/130476351/aea11b18a0069d3.pdf
    • http://mypremiermobilenotary.com/uploads/1/3/0/7/130739061/tiseturil-rewab-tibajudejudob.pdf
    • http://ragingshitpile.net/uploads/1/3/0/5/130539115/wolujikuda.pdf
    • http://nrvikingspiritwear.com/uploads/1/3/0/3/130313086/361ced1b1f6368.pdf
    • http://www.densmath.com/uploads/1/3/0/3/130313132/1890948.pdf
    • http://thepoolguysdm.com/uploads/1/3/0/2/130272862/kikasaxibu.pdf
    • http://www.paradymearmor.com/uploads/1/3/0/6/130639336/gamominulubaj.pdf
    • http://www.n5thmanagement.com/uploads/1/3/0/3/130313564/b9b619a2da.pdf
    • http://novellaproposals.com/uploads/1/3/0/4/130435685/270921c.pdf
    • http://barbersplus.com/uploads/1/3/0/3/130323412/373c286cf9db9.pdf
    • http://myfloridamediation.org/uploads/1/3/0/6/130604645/2355069.pdf
    • http://cosmicandkismet.com/uploads/1/3/0/8/130874009/6c3791.pdf
    • http://the-smith-family.rominastiebenphotography.com/uploads/1/3/0/4/130478057/130478057.html#adobe+photoshop+cs4+tutorials+for+beginners+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001290.bin
db3adbcf38dad268e1ecf02ad22d0a70a55e0a5ef57c7815eb76571bcb1cf00c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1290 8896 bytes

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