Malicious PDF — malware analysis report

Static analysis result for SHA-256 6900ab39d28e4ea6…

MALICIOUS

PDF

35.3 KB Authoring application: Soda PDF
MD5: e28d645a05f1cd076b74b15a559e59b9 SHA-1: d8fb89f972aed9236244d78c1c7fee05c7d6ecb7 SHA-256: 6900ab39d28e4ea6e95aecc623a7baf4edb85f7cc4682b6d01444b7e18a8e86c
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious intent. The primary finding is a large number of embedded external links pointing to PDF files on various domains, suggesting a link farm or a distribution mechanism for further payloads. The document body contains garbled text and URLs, reinforcing the malicious nature.

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://soyseal.com/uploads/1/3/0/4/130476102/kivikabaxor.pdf
    • http://batteryparkschool.com/uploads/1/3/0/6/130640063/4377158.pdf
    • http://thelightrebel.com/uploads/1/3/0/5/130546717/futitasaliwewox-patoxamubi.pdf
    • http://stewies.store/uploads/1/3/0/6/130639410/zonerevo.pdf
    • http://melangeemporium.com/uploads/1/3/0/7/130776678/winobov-lazipejajoj.pdf
    • http://nlpcoursesmelbourne.com/uploads/1/3/0/3/130323932/90c4d6a1.pdf
    • http://hotloanrate.com/uploads/1/3/0/4/130488626/dumifeko.pdf
    • http://autobahnregistry.com/uploads/1/3/0/2/130289304/wemupikena.pdf
    • http://thelonghornsd.com/uploads/1/3/0/7/130739664/zigetanusarulivuje.pdf
    • http://theoldpostofficesuffolk.com/uploads/1/3/0/4/130490328/c9089a4ce.pdf
    • http://yandex-afisha24.ru/uploads/1/3/0/6/130621293/4135161.pdf
    • http://hostmaster.georgiacrook.co.uk/uploads/1/3/0/6/130639599/pomul-nepugi-jorulewut-wevafolo.pdf
    • http://adidasdeadstockmarketplace.com/uploads/1/3/0/5/130546486/fibimeradinifiputap.pdf
    • http://wellingtonyogawithpenina.com/uploads/1/3/0/6/130603943/4d3f1d8d9dd.pdf
    • http://hiddenpotentialcoaching.com/uploads/1/3/0/9/130969597/dodexon-gofoziponijebil-sidetapogev-namafufi.pdf
    • http://popquant.com/uploads/1/3/0/7/130775729/mudolaledubunal-nogola.pdf
    • http://littlecreationsmadewithlove.com/uploads/1/3/0/5/130539678/3075145.pdf
    • http://maximumenviroservices.gammaxiques.org/uploads/1/3/0/9/130969198/130969198.html#alcalosis+metabolica+aguda+y+cronica

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002da9.bin
dd18f9f3679441dff90a12544047812863f42015593256455685c895ededb0b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2DA9 8040 bytes

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