Malicious PDF — malware analysis report

Static analysis result for SHA-256 b87c9ed866462775…

MALICIOUS

PDF

65.4 KB Authoring application: Solid Converter PDF
MD5: 46af58c7c25ac250fb2d1eb238910188 SHA-1: bd094060e0f5c129f1782eceb8fd30a3e4aa3384 SHA-256: b87c9ed866462775507ee48d6742757996440514f215e5e9cd34979a4fd4ade2
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded URLs pointing to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content, as suggested by the 'PDF_SEO_LINK_FARM' heuristic. The ClamAV detection further supports its malicious classification. No scripts were extracted from this sample, and the document body text is largely unreadable, making it difficult to determine a more specific attack pattern beyond link distribution.

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://musings-rants.com/uploads/1/3/0/3/130323764/4b3a7f05fe32eb5.pdf
    • http://www.karimjabbar.com/uploads/1/3/0/4/130435635/9546730.pdf
    • http://nissanfigaro.net/uploads/1/3/0/5/130543198/3545774.pdf
    • http://movingmemorycompany.com/uploads/1/3/0/6/130620482/b7be4d.pdf
    • http://farmboy.press/uploads/1/3/0/6/130603855/jokuvaxerak.pdf
    • http://loneymetalworks.com/uploads/1/3/0/7/130775593/3462864.pdf
    • http://evilgamers.com/uploads/1/3/0/7/130738884/sosuzuwebu_luzoruredoda_fuberobafirumiv.pdf
    • http://puppylink.ca/uploads/1/3/0/6/130604198/bajosawi.pdf
    • http://studentafe.com/uploads/1/3/0/5/130539494/tuganubomukiwib-xomagadeg-wefogijukove-xinuxusot.pdf
    • http://lunartico-malamutes.com/uploads/1/3/0/6/130621411/6774705.pdf
    • http://rumbacan.com/uploads/1/3/0/8/130874475/loxopinidib.pdf
    • http://savecannabis.us/uploads/1/3/0/4/130488734/molukagato.pdf
    • http://webmail.thankfulrecords.com/uploads/1/3/0/6/130621980/derikonivariw.pdf
    • http://montessoriforpeace.net/uploads/1/3/0/4/130490053/pubonezumikenug.pdf
    • http://carolinevanthoff.com/uploads/1/3/0/2/130287371/wizolof.pdf
    • http://monaventurephoto.com/uploads/1/3/0/6/130604250/9ea7a4d0fd49681.pdf
    • http://brisbanebirthing.com/uploads/1/3/0/6/130620708/neduremexobi.pdf
    • http://stonewoodhops.com/uploads/1/3/0/4/130435751/dijufubumex.pdf
    • http://billtheinspector.com/uploads/1/3/0/5/130588568/4727916.pdf
    • http://tattoovictoriatexas.com/uploads/1/3/0/5/130548039/1536136.pdf
    • http://coleinvestigations.com/uploads/1/3/0/4/130483389/lifasuxas_nivetuf_xosogevibefu.pdf
    • http://myforgottenself.com/uploads/1/3/0/6/130604552/7799855.pdf
    • http://fretbuzz.com/uploads/1/3/0/5/130543979/weboxojusemi_zeniruru.pdf
    • http://yinghunzuanshi.br3h.com/uploads/1/3/0/8/130813899/130813899.html#jurnal+tentang+alkaloid+pdf

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000174d.bin
373baa02a29f53dd6be4ea819825aae62504610becf0582826f1828b40e9f93a
pdf-font-stream PDF embedded font (sfnt) at offset 0x174D 8888 bytes
font_01_sfnt_off0000bdaa.bin
171f8a79f44c817cfb5de1f8154ee08a86d70c6dbb15210f7216abbc77b54c6b
pdf-font-stream PDF embedded font (sfnt) at offset 0xBDAA 2732 bytes
font_02_sfnt_off0000c6b0.bin
7d0e4f26927737c593ed7efda103a1107150fe3ac8ddbcafaf6ee6c0af50a0b0
pdf-font-stream PDF embedded font (sfnt) at offset 0xC6B0 1588 bytes