Malicious PDF — malware analysis report

Static analysis result for SHA-256 bca2716a235ef967…

MALICIOUS

PDF

37.4 KB Authoring application: OpenOffice Draw
MD5: 7ae323a393797b18f77b57f8cae82b1a SHA-1: 14a9b08c38b8986dbbfd61f515103772446984b6 SHA-256: bca2716a235ef967e03978c9fe8eab36e021e7b7e5f3cce88e5a90564eda5a0b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links to external PDF documents, a technique commonly used for SEO poisoning or to redirect users to malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. The document body itself is heavily malformed and contains some of the same URLs, indicating a deliberate attempt to obscure the malicious nature.

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://carmichaelsrestaurant.com/uploads/1/3/0/3/130379370/c5f0e8f8c7832.pdf
    • http://mosaicwellington.org/uploads/1/3/0/2/130272286/1444869.pdf
    • http://ideationtraining.com/uploads/1/3/0/4/130476519/afffd20e93.pdf
    • http://leapsandbounds.in/uploads/1/3/0/6/130604523/naropulodakizu.pdf
    • http://cityglush14.icu/uploads/2020/01/28/428dc9a8c11.pdf
    • http://bir.tehnika-ask.ru/uploads/2020/01/28/nanuzesevagogopided.pdf
    • https://desarofopeduzip.weebly.com/uploads/1/3/0/2/130289653/pixokirapowovo.pdf
    • http://najaxubaw.ynbpharm.com/uploads/2020/01/28/7914257.pdf
    • http://captivated.blog/uploads/1/3/0/5/130539009/vowivuwaxojofi.pdf
    • http://beachjerkyob.weebly.com/uploads/1/3/0/2/130273581/3a176e47cff5126.pdf
    • http://fitness-private.com/uploads/1/3/0/6/130639395/8243235.pdf
    • http://lodimipe.suot.pro/uploads/2020/01/28/171970.pdf
    • https://zosujene.weebly.com/uploads/1/3/0/2/130274024/51597.pdf
    • http://kcranchllc.com/uploads/1/3/0/6/130603971/2ac611aced1c.pdf
    • http://motomomfuel.com/uploads/1/3/0/5/130588843/652786.pdf
    • http://weddingcakesbrisbane.net/uploads/1/3/0/4/130435851/zetominaxo.pdf
    • http://zambiasafarihunting.com/uploads/1/3/0/5/130540585/130540585.html#av+malformation+brain+treatment

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000140b.bin
e649f75bec07c458f8b5079cd65b4879a3a16fd0e53b543421dbb1e1b2f316f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x140B 7752 bytes

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