Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7aae7f36ba0fdb2…

MALICIOUS

PDF

40.5 KB Authoring application: LibreOffice Draw
MD5: 400503e4b902446e1ac1504149bf7be9 SHA-1: f8ad4d413b2048927dca3592b64a4c78a2c84795 SHA-256: f7aae7f36ba0fdb205bb8c9d89615b2720bd59726a1cd77238b34de53c709871
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents hosted across various domains. This technique, identified by the PDF_SEO_LINK_FARM heuristic, is commonly used to create link farms for SEO manipulation or to distribute malicious content. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious intent, likely related to phishing or traffic redirection. The document body mentions 'Rehab strained achilles tendon' which appears to be a lure to disguise the malicious nature of the links.

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://100firesmoto.com/uploads/1/3/0/5/130544295/3efa7ca637c6f.pdf
    • http://roosterpr.agency/uploads/1/3/0/6/130639859/abd08ce2ec8bb.pdf
    • http://amd11z.com/uploads/1/3/0/7/130776245/jaxajeki.pdf
    • http://luisangelvelizexitproject.com/uploads/1/3/0/2/130289641/def6dd098.pdf
    • http://dcexploration.net/uploads/1/3/0/5/130541131/4ea3fe7b3a.pdf
    • http://ninjaprite.com/uploads/1/3/0/7/130739445/de6be59ce7.pdf
    • http://uwhqsc.org/uploads/1/3/0/4/130488539/fijek.pdf
    • http://classicrockduo.com/uploads/1/3/0/6/130621720/lozavom.pdf
    • http://winebar.org/uploads/1/3/0/3/130379175/1305393.pdf
    • http://geposorogu.spb-shocker.ru/uploads/2020/01/29/xomalijer.pdf
    • http://mrserio.com/uploads/1/3/0/4/130491319/wigeguwif_rodaliwuke_xujobiwazuw_sozav.pdf
    • http://nice-priz.site/uploads/1/3/0/6/130621622/130621622.html#rehab+strained+achilles+tendon

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001267.bin
e744360d37dbb7511af9190eb289de6180fcb45aaa18d9b6bd27fb99842fc582		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1267 7848 bytes

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