Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c6089ff3b81f00d…

MALICIOUS

PDF

36.0 KB Authoring application: Serif PagePlus
MD5: ddd67bda1247fed7d0d90695ad7304b8 SHA-1: efa21ca8b874bc6636e7dbf7b721afa314d58f30 SHA-256: 1c6089ff3b81f00d52ed8cc733a5db645d767248f2c438a886bea8adafdabda4
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to other PDF files, a technique often used for SEO poisoning or to distribute further malicious content. The heuristic 'PDF_SEO_LINK_FARM' and the ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' strongly indicate a phishing or malware distribution campaign. The document body's text, while partially corrupted, mentions an outdated Internet Explorer version, suggesting a lure to trick users into downloading malicious files disguised as updates.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://mylighthouselearning.com/uploads/1/3/0/2/130289247/pigipasezapazin.pdf
    • http://nicholasruscettaart.com/uploads/1/3/0/4/130436367/6175174.pdf
    • http://nwapetgrooming.com/uploads/1/3/0/5/130589198/barunadutoxemadar.pdf
    • http://syriimire.com/uploads/1/3/0/6/130604542/jivisesukeweg-rotowinemivu.pdf
    • http://kozhevnikov.xyz/uploads/2020/01/27/2046183.pdf
    • http://zix.betdouble.ru/uploads/2020/01/27/genezemetomegax.pdf
    • http://frbasketball.org/uploads/1/3/0/4/130483207/97dbf56c16181c4.pdf
    • http://gelu.lifecreditus.ru/uploads/2020/01/27/kokakukowil.pdf
    • http://mmerossi56.weebly.com/uploads/1/3/0/4/130489044/pedafuxawamidinopux.pdf
    • https://gofelitoboza.weebly.com/uploads/1/3/0/2/130270863/49c9f0bcc19d.pdf
    • http://508laurelwood.com/uploads/1/3/0/4/130483187/361546.pdf
    • http://undiscoveredmuas.org/uploads/1/3/0/2/130272504/migiwumaladoduzo.pdf
    • https://rubenomazaji.weebly.com/uploads/1/3/0/6/130604229/e3ce584.pdf
    • http://dollarmovement.com/uploads/1/3/0/2/130271099/d8a8d09cf30725.pdf
    • http://benkregel.com/uploads/1/3/0/6/130605259/130605259.html#academia+de+vampiros+o+beijo+das+sombras+epub

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000145c.bin
e5799e85d2c6fbf66e7d72b80bff032ef983dd68c84b8172a6f771cae5d39b37		 pdf-font-stream PDF embedded font (sfnt) at offset 0x145C 10436 bytes

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