Malicious PDF — malware analysis report

Static analysis result for SHA-256 055807f610a1d12d…

MALICIOUS

PDF

27.3 KB Authoring application: Adobe PDF Library 9.0
MD5: 568b6ef65cdf40c4318ee485bdebbbc3 SHA-1: 8ecb0c238631d5e5cf58b632aced67824d84444e SHA-256: 055807f610a1d12d498aea4a05df67a06c7d1fa410f5b47c1f1052073d6a3126
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to other PDF files, indicating a link farm or phishing campaign. The ClamAV detection and ML classifier strongly suggest malicious intent, specifically related to phishing. While no scripts were extracted, the structure and URL distribution are characteristic of SEO spam or phishing lures.

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://mofakshomesllc.com/uploads/1/3/0/6/130604264/1625642.pdf
    • http://singaporenewexecutivecondo.com/uploads/1/3/0/4/130476830/4771349.pdf
    • http://m.transformationlifecoaching.net/uploads/1/3/0/5/130588701/52177.pdf
    • http://2chickschatabouteggs.com/uploads/1/3/0/6/130604862/sajonoverupas_pexini_bezaxipajero.pdf
    • http://mensthings.net/uploads/1/3/0/4/130488311/1653317.pdf
    • http://mooregoodhairdays.com/uploads/1/3/0/6/130604113/16af80.pdf
    • http://idealgov.net/uploads/1/3/0/5/130590082/vapozopunavuwujomil.pdf
    • http://svdptc.org/uploads/1/3/0/6/130620402/8979027.pdf
    • http://oaklandpoolcare.com/uploads/1/3/0/2/130288753/jolalagexax.pdf
    • http://trawallaprimary.com/uploads/1/3/0/6/130605240/e42183a1c8482cb.pdf
    • http://williamfrenchmusic.live/uploads/1/3/0/3/130312985/sarorum.pdf
    • http://bckprograms.org/uploads/1/3/0/2/130271015/saderapojuja-fodabosirokita-vizafosasim.pdf
    • http://gadsdencountyrealestate.com/uploads/1/3/0/2/130272462/417087.pdf
    • http://thatblancobot.com/uploads/1/3/0/6/130605149/f7cf47.pdf
    • http://webmail.justanothersunday.com/uploads/1/3/0/3/130379291/130379291.html#bioinformatics+algorithms+an+active+learning+approach+github

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001605.bin
cd9e9398b047dcb21756f6ae1d28283e96cb595ede8042fb4b2ef188c2b6677b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1605 5852 bytes

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