Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdd5a9de1e9947ab…

MALICIOUS

PDF

45.8 KB Authoring application: Inkscape
MD5: 59418793e81d0911d8b27f58cf7e9018 SHA-1: a859bc538eeb8bf24e85986de14fb4041830751d SHA-256: cdd5a9de1e9947ab62d46854018fa46ccce9a461347978a997986c21fcf27cb2
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery mechanisms.

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://westsidehockey.weebly.com/uploads/1/3/0/5/130544703/9013760.pdf
    • http://robertwendellholmes.com/uploads/1/3/0/3/130313588/didesiko.pdf
    • http://nealwendt.com/uploads/1/3/0/7/130738966/vesitod_vajufaferupowa_lozejat.pdf
    • http://nancyrancher.life/uploads/1/3/0/2/130289406/e09881d.pdf
    • http://pilgrimwithabackpack.com/uploads/1/3/0/5/130551876/4140817.pdf
    • http://singularityventuresgroup.com/uploads/1/3/0/5/130540083/gatowabav.pdf
    • http://simplycfood.com/uploads/1/3/0/3/130323672/d39e9b9e0.pdf
    • http://applysv.com/uploads/1/3/0/3/130323485/39126359a9f9142.pdf
    • http://nicole-bramble-illustration.com/uploads/1/3/0/5/130551143/miwogo.pdf
    • http://priorlakeboatstorage.com/uploads/1/3/0/4/130436108/nomuxusokimisuzav.pdf
    • http://myentouragemusic.com/uploads/1/3/0/2/130291033/130291033.html#24th+ittf+%E2%80%93+attu+asian+table+tennis+championships

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012df.bin
bc4daea04a8be4eb62c4305326d046cc7b642ea287c79d83103f4747fe2109ee
pdf-font-stream PDF embedded font (sfnt) at offset 0x12DF 8728 bytes
font_01_sfnt_off0000635d.bin
f335bbb8769c533cbca16f6384a9be7e2e65528b9693bf598f9b6a21ed261b2e
pdf-font-stream PDF embedded font (sfnt) at offset 0x635D 16036 bytes
font_02_sfnt_off00007783.bin
7863b829de04ea8b7f5be4d5dae43fa62182e7611f0c3a300d10b316d27db496
pdf-font-stream PDF embedded font (sfnt) at offset 0x7783 2732 bytes