Malicious PDF — malware analysis report

Static analysis result for SHA-256 c25ae8dc219901ee…

MALICIOUS

PDF

34.6 KB Authoring application: PDF Studio
MD5: ed7dcd62b2fe2ad09e3e6b8a55a4a603 SHA-1: c8f6aa8592069d0254fbad34f4a3dee100466cf2 SHA-256: c25ae8dc219901eef8107a2feb61335afd481a29a5817207bc2a0d72887a65b1
130 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 other PDF files, disguised as an invoice template. This indicates a link farm or redirection strategy to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing and traffic redirection intent. The primary goal appears to be directing users to download and potentially execute further malicious payloads from the numerous external URLs.

Heuristics 4

  • 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
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://fibromyalgiamadesimple.com/uploads/1/3/0/5/130543569/mupalekelibarudux.pdf
    • http://randiandmike.com/uploads/1/3/0/3/130323789/5c681d877cdd0.pdf
    • http://zadevolex.atrilmedia.com/uploads/2020/01/28/vulagotu-xutopepisa-wagiwaxi.pdf
    • http://creditcoaches.org/uploads/1/3/0/4/130483207/1231505.pdf
    • http://photolenka.com/uploads/1/3/0/4/130488105/8644772.pdf
    • http://harvestcityworship.com/uploads/1/3/0/3/130323979/lugudetusavaroz.pdf
    • http://familiesfeedinghope.com/uploads/1/3/0/5/130547486/4268354.pdf
    • http://reelectmayorjohnstontville.com/uploads/1/3/0/5/130588821/4075075.pdf
    • http://kulodadeza.rusgame.pw/uploads/2020/01/29/7005785.pdf
    • http://nextlevelsc518.com/uploads/1/3/0/6/130639329/fcb740cc0495.pdf
    • http://wilsonfarmmurfreesboro.com/uploads/1/3/0/2/130289774/borefulufetipigozi.pdf
    • http://thesingbabysingshow.com/uploads/1/3/0/6/130639021/1121595.pdf
    • http://nupelicanparty.org/uploads/1/3/0/5/130551427/130551427.html#invoice+template+uk+doc

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012ff.bin
55490e35420a362901afdd5b1c0da7a56f6369e9da57f3b4e51a94409e089c08		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12FF 7872 bytes

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