Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7b345fb8dba3c2a…

MALICIOUS

PDF

86.6 KB Authoring application: PDFedit
MD5: d757b68841a302df1c79c3aa8dc29793 SHA-1: b0d86e4c2116f2340662f60233c8d3f59dbbe64d SHA-256: f7b345fb8dba3c2ac8408643d4f1bc1658f757c6bb1c247f23ed09dcfa4f574a
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple heuristics, including a critical finding for a link farm containing 26 external PDF links, predominantly hosted on cryptocurrency-related domains. The ML classifier also strongly indicated maliciousness. The embedded URLs suggest a phishing or scam attempt, likely directing users to malicious content disguised as legitimate documents.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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://topcryptocurrency.com/uploads/1/3/0/7/130739502/lolivilomukogo.pdf
    • http://stankarwoski.com/uploads/1/3/0/4/130490585/9480099.pdf
    • http://phorion.com/uploads/1/3/0/6/130621061/lafefe-gatemojikem-lukovi.pdf
    • http://blazzt.com/uploads/1/3/0/2/130272452/rubewofaj.pdf
    • http://makemoneystreaming.com/uploads/1/3/0/2/130270804/1122107.pdf
    • http://cmnelpaso.org/uploads/1/3/0/3/130323301/zuduvo_toxepagefodoji.pdf
    • http://homesellingbuying.com/uploads/1/3/0/7/130740573/zivopesamiwofala.pdf
    • http://unitedcraftgrowers.com/uploads/1/3/0/7/130774965/9600043.pdf
    • http://www.focusedpawsllc.com/uploads/1/3/0/5/130543264/abab5ac736776.pdf
    • http://theyouthchallenge.com/uploads/1/3/0/5/130542996/sufizipo.pdf
    • http://librodeestilo.org/uploads/1/3/0/4/130483286/f798d0b51ef.pdf
    • http://ikkiworks.org/uploads/1/3/0/3/130312913/292e6d4.pdf
    • http://rachelnamba.com/uploads/1/3/0/6/130620604/f41ee7816.pdf
    • http://ibcbet.lucky1st.com/uploads/1/3/0/4/130490193/130490193.html#english+

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c42.bin
2fbc45533d3a9ec0d11d0b07f0960c9b9a4c4ce114534c084fc7cd422087fe5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C42 9456 bytes
font_01_sfnt_off00007a55.bin
2920f5888ed95dedac793d298e5dff182be69eb0344d60275f28083aa464ae44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A55 8444 bytes
font_02_sfnt_off00009101.bin
124c74b331860fe1e2b7aafbf430ddea52f72adcd2c65cac9b907929c53abcc4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9101 12492 bytes
font_03_sfnt_off0000afeb.bin
c6c22b80e6350e36ec8427b84c69cfe60c12e48340df6b555cd94ada2262efd9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAFEB 26080 bytes
font_04_sfnt_off0000dd01.bin
a9616a725329cc9f6e2e460cda83526d331e23c96faf60fb2f813e9d34373f46		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDD01 5924 bytes
font_05_sfnt_off0000f296.bin
c8ca76d458e730ef2a4e9e95965cf390d78ecde5d1e050ede63aa0862ba2f773		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF296 13740 bytes

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