Malicious PDF — malware analysis report

Static analysis result for SHA-256 263067db13324506…

MALICIOUS

PDF

56.6 KB Authoring application: pstoedit
MD5: bfc5ad709c7520f3927b46e09f17922b SHA-1: bf2698c3d97494cfc70e3994ebde3c3697a63f9f SHA-256: 263067db133245065c81f4a04b847aac6b3a46cb9a0670134ff59f72ed3af9b3
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links to other PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ClamAV detection and ML classifier strongly indicate maliciousness. The document body content is largely unreadable due to truncation and encoding issues, but the presence of the phrase 'Ayatul kursi translation in hausa' suggests a potential lure or content misdirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://dogs.addenbrooke.nz/uploads/1/3/0/6/130639573/16591fd5c2f3701.pdf
    • http://mygabrielagarcia.com/uploads/1/3/0/7/130775719/7657145.pdf
    • http://pygirl.net/uploads/1/3/0/6/130621664/zoxojuxizo.pdf
    • http://blacksmithspdf.com/uploads/1/3/0/2/130289284/zurozurusupil.pdf
    • http://remnantstudios.com/uploads/1/3/0/6/130620401/5c8c224.pdf
    • http://gypsydenisse.com/uploads/1/3/0/5/130589125/24e513a.pdf
    • http://oscilloscape.org/uploads/1/3/0/7/130776735/2703316.pdf
    • http://dtodd.design/uploads/1/3/0/6/130604368/valusibegirijag_vofepul_ruzali.pdf
    • http://sierraorganic.net/uploads/1/3/0/2/130289327/20cf61fd2d9fd7.pdf
    • http://wamits.com/uploads/1/3/0/6/130639468/lezowuzel.pdf
    • http://nationalarenaswimmingleague.org/uploads/1/3/0/3/130323968/rodem-mowajudujavuru-kugevavewumuta-nugubejakagugo.pdf
    • http://holisticcollegecounseling.com/uploads/1/3/0/9/130969842/jimowekonitufe_mulibuzop_kegokabimopos_vadagam.pdf
    • http://whatisdarkfiber.com/uploads/1/3/0/6/130604844/saponedunura_vekobaporixawa.pdf
    • http://resort24stay.online/uploads/1/3/0/6/130621248/jaxowolivo-sixunaraxi-rirupowuvu.pdf
    • http://paninternationalllc.com/uploads/1/3/0/8/130874073/fegosux.pdf
    • http://purplerobotpossum.com/uploads/1/3/0/3/130313567/keruwiluko_mozusabuzerivi.pdf
    • http://74-123-72-143.mgwnet.com/uploads/1/3/0/5/130589151/130589151.html#ayatul+kursi+translation+in+hausa

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_001_off00005602.bin
621d81a82b4c944add28015c1f3a1fa5a130bdf2ed0deddf3fa1b15a92f1c1fa		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5602 24448 bytes
font_01_sfnt_off00008177.bin
b8b8e2cff600af3df6013e48618cca6096db0b7e4dc31e98ad1a7c4fba832e87		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8177 8368 bytes

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