Malicious PDF — malware analysis report

Static analysis result for SHA-256 53a05ab58b41375a…

MALICIOUS

PDF

42.1 KB Authoring application: LibreOffice
MD5: 88f338285f01e6bafbd859813fb8323c SHA-1: eb1e8e8b1c762487d661d1eb2ef7812826a50295 SHA-256: 53a05ab58b41375a555eaed94a785a1c4c682ca6495ce00c78519edb435f96c1
120 Risk Score

Malware Insights

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

The PDF file was detected by ClamAV as Pdf.Phishing.TtraffRobotInstall-7605656-0. Static analysis revealed a large number of embedded URLs, forming a link farm. The primary heuristic firing, PDF_SEO_LINK_FARM, indicates that these links are likely intended to direct users to malicious or phishing content, potentially for traffic generation or further exploitation. No scripts were extracted from this sample.

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://philippemora.net/uploads/1/3/0/3/130379158/9270206.pdf
    • http://namastebrown.com/uploads/1/3/0/5/130590724/9c65148d.pdf
    • https://wetukaginowup.weebly.com/uploads/1/3/0/4/130488661/pewafek_vadikenid.pdf
    • http://rustykettle.com/uploads/1/3/0/3/130323597/433c7cd8ba94a.pdf
    • http://chriswongfitness.com/uploads/1/3/0/6/130621607/9621973.pdf
    • http://fanerilera.altaigrand.com/uploads/2020/01/28/4901223.pdf
    • http://somasoakcanada.com/uploads/1/3/0/6/130603969/gabajebix-tojipineri.pdf
    • http://nuclearoven.com/uploads/1/3/0/2/130270905/vavube.pdf
    • http://juxigab.kak-chto.ru/uploads/2020/01/29/751437.pdf
    • http://nationals2020.com/uploads/1/3/0/6/130639708/8422158.pdf
    • http://mnsportslocker.com/uploads/1/3/0/2/130291922/2402908.pdf
    • http://perfectlywrappedllc.com/uploads/1/3/0/5/130546543/titabo-penaren.pdf
    • http://bodyworkbybarb.com/uploads/1/3/0/6/130621950/130621950.html#avon+mart+katalo%C4%9Fu+2016

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013f6.bin
1105792034946a59bb8fcf06b7e48fa6571ba5bc7596c405aa702862f4a3f591		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13F6 9808 bytes
font_01_sfnt_off00005b8a.bin
598b436daaf3d122157f8aae4d95cb5f98998d7541b527c84c982bd0659a624f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B8A 16888 bytes

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